Like all outdoor buildings, photovoltaic devices are vulnerable to lightning strikes. By far the biggest culprit for the power surges that damage solar panels are direct and indirect lightning strikes on the system. As one of safety automation system devices, our solar SPD DC power surge protectors help prevent DC overvolt voltage damage caused by lightning surges and other strong changes in power. <br>T range SPD DC surge protection devices for circuits are designed according to the IEC and GB standards and apply to low voltage DC systems. This DC surge arrester or suppressor by CHENZHU, a professional surge protection device manufacturer, enables the connection between the power supply system and an equipotential network instantaneously when the surge occurs and limits the residual voltage to a certain level to protect the devices protected. <br>Various types of DC voltage spike protection devices for circuits are available for you to select, such as dc spd type 2, 1000 V DC SPD. Buy our high quality DC power SPD right now and get the most competitive dc spd price. <br> <br>DC Surge Protection Benefits <br>Max. continuous operating voltage Ucpv Up To 1500VDC <br>IP20 Housing Protection Grade <br>PA66/V0 Housing Material/ Inflammability (UL94) <br>Hot Pluggable  <br>Fault Indication <br>Remote Alarm <br>Response time: 25 ns <br> <br>DC Power Surge Protector Application Field <br>In the photovoltaic industry, DC POWER SPDs are used to protect DC circuits, such as solar panels and inverters, from voltage spikes and electromagnetic interference. By intercepting and dispersing excessive voltages, these protective devices ensure stable system operation and extend equipment lifespan. Consequently, using DC POWER SPDs effectively reduces maintenance costs and improves the overall energy efficiency and cost-effectiveness of the system. <br> <br>FAQ of DC Power SPD <br>Q.How to select SPD for solar system power? <br>A.1.Maximum continuous operating voltage Uc <br>2.Discharging capacity <br>3.Combination <br>Q.Does the surge protector need power? <br>A.The surge protector does not require power and can be serially or parallel into the signal circuit. <br>#CHENZHU <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fdc-power-spd%2F[/a]

Thermal resistance type isolator, the two-wire or three-wire system resistance signal is converted into 0/4~20mA current signal isolation or 0/1~5V voltage signal output. It is intelligent, can through the computer scope of heat resistance index number range and configuration.  <br>This 5v to 24v signal converter should be supplied power independently. Input circuit, output circuit and power supply are each galvanically isolated. <br> <br>Advantages of CZ3000 temperature signal conditioner <br>24V DC independent/ loop power supply <br>Line fault detection(LFD) <br>Configurable by software <br>Integral CJC on terminals/TC input terminals <br> <br>CHENZHU has got intergraded management service Certificates, like ISO9001, ISO14001 and ISO45001, more than 135 patents related core tech was obtained, reference OEM and ODM customers from German, Japan and direct shipments to any global destinations. <br>#CHENZHU <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fcz3000-temperature-converter-signal-conditioner.html[/a]

Pulse voltage input signal conditioners transfer the pulse voltage signal and provide isolated power supply for field instruments. The input adopts hysteresis comparison circuit and has high anti-interference performance. It has two output way: pulse voltage output and transistor output.  <br>This 5v to 24v plc signal converter needs an independent power supply and galvanic isolation among power supply, input and output. <br> <br>Advantages of CZ3000 Pulse Input Signal Conditioner <br>24V DC independent power supply <br>PNP/NPN transistor output or voltage pulse output <br> <br>CHENZHU has got intergraded management service Certificates, like ISO9001, ISO14001 and ISO45001, more than 135 patents related core tech was obtained, reference OEM and ODM customers from German, Japan and direct shipments to any global destinations. <br>#voltage #pulse #output <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fcz3000-pulse-input-signal-conditioner.html[/a]

#ac #spd <br>The ac power surge protection device is designed to prevent transient surge conditions. Large single surge events, such as lightning, can reach hundreds of thousands of volts and can cause immediate or intermittent equipment failure. However, lightning and power anomalies account for only 20% of instantaneous surges. The remaining 80% of the surge activity is generated internally. <br>Our AC power SPD surge protection device, also called AC surge arrester or AC surge suppressor, supports long-term system reliability by absorbing large amounts of transient energy while maintaining low clamp voltages. <br>Our type 2 AC surge protector SPD can provide high-quality, safe and reliable surge protection for devices in power supply circuit systems. <br>The surge protector for AC compressor is widely used in petrochemical, gas, environmental protection and new energy industries. <br>CHENZHU, a reliable company in safety and automation system, also provide various other surge protectors to meet the needs of our customers, such as mini split voltage protector. For the price of AC SPD surge protector and other related information, please feel free to contact us.    <br> <br>Advantages of AC SPD <br>Innovatively patented technology <br>-Disconnection is realized by complete isolation of electrodes which can cut off solder adhesion and extinguish arcs. <br>-Short circuit withstanding capacity is up to 1000A without external backup fuse. <br>-Innovated preheating process, automatic soldering and automatic inspection technology. <br>-Suitable for harsh environments such as offshore wind turbines, high altitude solar power stations, outdoor charging stations and etc; passed multiple tests such as 96h salt spray, 2g vibration, Flame retardant grade: V0, Max. withstanding temperature: 220℃. <br>Easy maintenance <br>-Hot pluggable <br>-Failure indication <br>-Remote alarm <br> <br>Rely on safety technical standards <br>International certification <br>Invention patent <br>Laboratory authorized by TÜV Rheinland group <br> <br>Ac Surge Protection Device Features <br>Suitable For Different Power Supply System <br>IP20 Housing Protection Grade <br>PA66/V0 Housing Material/ Inflammability (UL94) <br>Hot Pluggable Easy to Maintain <br>Fault Indication <br>Remote Alarm <br>Response time: 25 ns <br> <br>AC SPC Application <br>AC POWER SPD is used in electric vehicle charging stations. In these stations, the AC SPD protects charging equipment from voltage surges caused by grid instability and lightning strikes. It effectively prevents damage and data loss due to high voltages, ensuring a safe and stable charging process. <br> <br>FAQ of AC Surge Protector <br>How to select AC Surge Protection Device？ <br>1. Maximum continuous operating voltage Uc <br>2. Discharging capacity <br>3. Combination <br>What is In and limp means? <br>Nominal discharge current (In) is the Max. Anti-surge Current Capacity. <br>Impulse current (Iimp) is the current that defined by the three parameters: Ipak, Q, and W/R, typically with a waveform of 10/350us. <br> <br>For more information about ac spd price, please feel free to contact us! <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fac-power-spd%2F[/a]

#40ka #spd <br>SPD for AC power; 220VAC, TN system, Single phase; In(8/20us): 20kA/phase, Imax: spd 40ka/phase; hot-pluggable; fault indication <br> <br>Features &amp; Advantages of 40KA SPD <br>Status indication: <br>Green: OK <br>Red: Failed <br>Lightning surge protection device modules can be replaced online. <br>Remote alarm output is optional, named with &quot;F&quot;. <br>It is normally installed at the boundary of LPZ1 and LPZ2 or subsequent LPZs. <br> <br>SHANGHAI CHENZHU INSTRUMENT CO., LTD. is a very established provider that specialises in automation safety. <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2F40ka-ac-power-spd.html[/a]

#20ka# spd <br>SPD for AC power; 220VAC, TN system, Single phase; In(8/20us): 10kA/phase, Imax: spd 20kA/phase; hot-pluggable; fault indication. <br> <br>Features &amp; Advantages of 20KA SPD <br>Status indication: <br>Green: OK <br>Red: Failed <br>Lightning protection device modules can be replaced online. <br>Remote alarm output is optional, named with &quot;F&quot;. <br>It is normally installed at the boundary of LPZ1 and LPZ2 or subsequent LPZs. <br> <br>SHANGHAI CHENZHU INSTRUMENT CO., LTD. is a very established provider that specialises in automation safety. <br> <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2F20ka-ac-power-spd.html[/a]

SPD 20KA AC Power <br>SPD for AC power; 220VAC, TN system, Single phase; In(8/20us): 10kA/phase, Imax: 20kA/phase; hot-pluggable; fault indication. <br> <br>Features &amp; Advantages of 20KA AC Power SPD <br>Status indication: <br> <br>Green: OK <br> <br>Red: Failed <br> <br>Lightning protection device modules can be replaced online. <br> <br>Remote alarm output is optional, named with &quot;F&quot;. <br> <br>It is normally installed at the boundary of LPZ1 and LPZ2 or subsequent LPZs. <br> <br>If you want to know more kinds of intrinsic safety barriers and isolators, please visit our website. <br>#spd#20ka <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2F20ka-ac-power-spd.html%0A[/a]

DO SIS Signal Input 24V DC 5A Safety Relay <br>These safety relay are suitable for the application of E-Stop button, safety gate and DO signal from SIS, with several contacts output. <br> <br>The emergency stop safety relay can be operated in single or double channel mode, manual or automatic reset, and with the function of monitoring the short circuit between channels. <br> <br>Features &amp; Advantages of DO Signal (SIS) Input 24V DC 5A Safety Relay <br>Several contacts output <br> <br>Low start-up inrush current <br> <br>Parameter of DO Signal (SIS) Input 24V DC 5A Safety Relay <br> <br>CZSR8001-3A1B CZSR8001-2A2B <br>Supply voltage 24V DC 24V DC <br>Voltage tolerance 0.85~1.1 0.85~1.1 <br>Current consumption ≤90mA (24V DC) ≤90mA (24V DC) <br>Input current ≤50mA (24V DC) ≤50mA (24V DC) <br>Cable resistance ≤15Ω ≤15Ω <br>Input devices DO signals DO signals <br>Number of contacts 3NO+1NC 2NO+2NC <br>Contact material AgSnO2 + 0.2 µm Au AgSnO2 + 0.2 µm Au <br>External contact fuse protection 10A gL/gG NEOZED (NO); 10A gL/gG NEOZED (NO); <br> 6A gL/gG NEOZED (NC) 6A gL/gG NEOZED (NC) <br>Utilisation category In accordance with EN60947-5-1: In accordance with EN60947-5-1: <br> AC-15, 5A/230V; DC-13, 5A/24V AC-15, 5A/230V; DC-13, 5A/24V <br>Switch-on delay ≤300ms ≤300ms <br>Delay-on de-energisation ≤30ms ≤30ms <br>Recovery time ≤100ms ≤100ms <br>Supply short interruption 20ms 20ms <br>EMC EN60947, EN61000-6-2, EN61000-6-4 EN60947, EN61000-6-2, EN61000-6-4 <br>Vibration Vibration frequency: 10Hz~55Hz; Vibration frequency: 10Hz~55Hz; <br> Vibration amplitude: 0.35mm Vibration amplitude: 0.35mm <br>Ambient temperature -20℃~+60℃ -20℃~+60℃ <br>Storage temperature -40℃~+85℃ -40℃~+85℃ <br>Relative humidity 10%~90% 10%~90% <br>Overvoltage category Ⅲ Ⅲ <br>Pollution degree 2 2 <br>Rated insulation voltage 250V AC 250V AC <br>Rated impulse voltage 6000V (1.2/50us) 6000V (1.2/50us) <br>Dielectric strength 1500V AC, 1min 1500V AC, 1min <br>Clearance and creepage distance In accordance with EN 60947-1 In accordance with EN 60947-1 <br>Safety integrity level SIL3 SIL3 <br>Performance level PLe PLe <br>Category Cat.4 Cat.4 <br> <br>Now the price of intrinsic safety barrier is reasonable, if you have needs, please contact us. <br>#sis#signal <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fdo-signal-sis-input-24v-dc-5a-safety-relay.html%0A[/a]

What Is Isolation Barrier? <br>Intrinsic safety barriers and isolators use intrinsically safe explosion-proof and functional safety technologies and adopts various measures such as rapid cut-off, isolation, and energy limiting to ensure that the energy transmitted to the field equipment in the hazardous area is intrinsically safe, thereby preventing dangerous energy from entering the danger zone and causing an explosion. <br> <br>An isolation barrier, such as the digital input barrier, is a key interface unit in the intrinsically safe explosion-proof control system. The intrinsically safe barrier or the intrinsic safety barrier with quite affordable price made by CHENZHU, one of the top intrinsic safety barrier manufacturers in China, is made under a strict production process and tested by a series of quality assurance systems. <br> <br>IS Barrier Types <br>GS8500-EX Series Intrinsic Safety Barrier <br>GS8500-EX Analogue Intrinsic Safety Barrier <br>GS8500-EX Analogue Intrinsic Safety Barrier Loop Power <br>GS8500-EX Digital Intrinsic Safety Barrier <br>GS8500-EX Digital Intrinsic Safety Barrier Loop Power <br>GS8500-EX Temperature Converter Intrinsic Safety Barrier <br>GS8500-EX Voltage Input Intrinsic Safety Barrier <br>GS8500-EX Communication Input Intrinsic Safety Barrier <br>GS8500-EX Frequency Converter Intrinsic Safety Barrier <br> <br>GS5000-EX Series Intrinsic Safety Barrier <br>GS5000-EX Analogue Intrinsic Safety Barrier <br>GS5000-EX Analogue Intrinsic Safety Barrier Loop Power <br>GS5000-EX Digital Intrinsic Safety Barrier <br>GS5000-EX Digital Intrinsic Safety Barrier Loop Power <br>GS5000-EX Temperature Converter Intrinsic Safety Barrier <br> <br>GS8200-EX Series Intrinsic Safety Barrier <br>GS8200-EX Analogue To RS485 Intrinsic Safety Barrier <br> <br>LBGS8000-EX Series Surge Protective Intrinsic Safety Barrier <br> <br>GS4000-EX Series Backplane Intrinsic Safety Barrier <br> <br>What is Difference Between Intrinsic Isolated Barrier and Intrinsically Safe Isolator? <br>Isolator <br>The isolator is used to adjust, isolate and transform all kinds of field instrument signals into the normal signals or special signals specified by users which can be accepted by the computer, DCS, PLS, etc. It is also used to isolate control equipment and operational equipment from electronics, like a relay. <br> <br>Intrinsic isolated barrier <br>The isolated barriers for hazardous areas in our safety automation system for sale are associated equipments of explosion-proof instruments that will not affect the function of the measurement system in a normal situation. The isolation barrier is placed on one side of the security site, when the explosion-proof system fails, the intrinsic barrier can limit the energy (electric energy) which can enter the dangerous site to safe values to ensure the safety of the scene. <br> <br>Difference <br>1. Different feature. Barrier: High reliability and precision, strong EMC performance. Isolator: Gives electrical isolation among the input &amp; output circuits. <br> <br>2. Different function. Barrier: Protect electrical signals in potentially flammable or other hazardous areas. Isolator: Adjust, isolate and transform all kinds of field instrument signals into the normal signals or special signals specified by users. <br> <br>3. Main difference: Explosion proof or not. <br> <br>What is Safety Level of Intrinsically Safe Electrical Equipment? <br>IA <br>IA means that the explosive gas mixture cannot be ignited under normal operation, one counting failure, and two counting failures. IA-level intrinsically safe electrical equipment can be used in hazardous locations in Zone 0, Zone 1, and Zone 2. <br> <br>IB <br>IB means that explosive gas mixtures cannot be ignited under normal operation and a counting failure. IB&#039;s intrinsically safe electrical equipment that can be used in hazardous locations in Zone 1 and Zone 2. <br> <br>IC <br>IC means that explosive gas mixtures cannot be ignited under normal operation. IC-level intrinsically safe electrical equipment can be used in zone 2 hazardous locations. <br>#intrinsic#safety#barriers#and#isolators <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fintrinsic-isolated-barrier%2F%0A%0A%0A%0A%0A%0A[/a]

Light Curtain Safety Relay <br>Light curtain Safety Relay supports PNP-type light beam devices. Safety relay modules provide a high level of fail-safe operation for critical processes and protection. These light curtains and multifunction controllers provide multiple functions such as release delay, muting, stepping, and protection for multiple curtains. <br> <br>Safety rated relays can choose single or dual channel operation, manual or automatic reset, with function of short circuit monitoring between channels. <br> <br>Features &amp; Advantages of Light Curtain Safety Relay <br>Support PNP type light beam device <br> <br>Support dual channel <br> <br>Support manual or automatic reset <br> <br>Parameter of Light Curtain Safety Relay <br>CZSR8001-3A1B-P CZSR8101-3A1B-N <br>Supply voltage 24V DC 24V DC <br>Voltage tolerance 0.85~1.1 0.85~1.1 <br>Current consumption ≤90mA (24V DC) ≤90mA (24V DC) <br>Input current ≤50mA (24V DC) ≤50mA (24V DC) <br>Cable resistance ≤15Ω ≤15Ω <br>Input devices PNP type light beam devices NPN type light beam devices <br>Number of contacts 3NO+1NC 3NO+1NC <br>Contact material AgSnO2 + 0.2 µm Au AgSnO2+ 0.2 µm Au <br>External contact fuse protection 10A gL/gG NEOZED (NO) ; 10A gL/gG NEOZED (NO); <br> 6A gL/gG NEOZED (NC) 6A gL/gG NEOZED (NC) <br>Mechanical endurance of contacts ≥107 ≥107 <br>Utilization category In accordance with EN60947-5-1: In accordance with EN60947-5-1: <br> AC-15, 5A/230V; DC-13, 5A/24V AC-15, 5A/230V; DC-13, 5A/24V <br>Switch-on delay ≤300ms ≤300ms <br>Delay-on de-energisation ≤30ms ≤30ms <br>Recovery time ≤100ms ≤100ms <br>Supply short interruption 20ms 20ms <br>EMC EN60947, EN61000-6-2, EN61000-6-4 EN60947, EN61000-6-2, EN61000-6-4 <br>Vibration Vibration frequency: 10Hz~55Hz; Vibration frequency: 10Hz~55Hz; <br> Vibration amplitude: 0.35mm Vibration amplitude: 0.35mm <br>Ambient temperature -20℃~+60℃ -20℃~+60℃ <br>Storage temperature -40℃~+85℃ -40℃~+85℃ <br>Relative humidity 10%~90% 10%~90% <br>Elevation ≤2000m ≤2000m <br>Overvoltage category Ⅲ Ⅲ <br>Pollution degree 2 2 <br>Rated insulation voltage 250V AC 250V AC <br>Rated impulse voltage 6000V (1.2/50us) 6000V (1.2/50us) <br>Dielectric strength 1500V AC, 1min 1500V AC, 1min <br>Clearance and creepage distance In accordance with EN 60947-1 In accordance with EN 60947-1 <br>Safety integrity level SIL3 SIL3 <br>Performance level PLe PLe <br>Category Cat.4 Cat.4 <br> <br>CHENZHU manufactures the most reliable interface product for safety automation system. We are here to help your device run more safely. Here you can not only get world-class products, but also outstanding service for automation and safety system. <br>#light#curtain#safety#relay <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Flight-curtain-safety-relay.html%0A[/a]

Photovoltaic DC SPD 1000 <br>Signal SPD for DC power, 1000VDC; In(8/20us): 20kA/phase, Imax: 40kA/phase; hot-pluggable; fault indication; <br> <br>Features &amp; Advantages of Photovoltaic 1000 DC Power SPD <br>Status indication: <br> <br>Green: OK <br> <br>Red: Failed <br> <br>DC power surge protector modules can be replaced online. <br> <br>Remote alarm output is optional, named with &quot;F&quot;. <br> <br>It is normally installed at the boundary of LPZ1 and LPZ2 or subsequent LPZs. <br> <br>Parameter of Photovoltaic 1000 DC Power SPD <br>T2-1000 <br>T2-1000F <br>Max. continuous operating voltage Ucpv 1000VDC <br>Short-circuit current rating Iscpv 1000A <br>Nominal discharge current In(8/20µs) 20kA <br>Max. discharge current Imax(8/20µs) 40kA <br>Voltage protection level Up 4kV <br>Recommended backup fuse 80A gG <br>Recommended grounding cable 6~35mm2 <br>Response time 25ns <br>Residual current IPE &lt;10μA <br>Remote alarm output 250VAC/0.5A;24VDC/0.5A <br>Housing protection grade(IEC60529) IP 20 <br>Housing material/inflammability rating(UL94) PA66/V0 <br>Testing standard IEC 61643-31 <br>#dc#spd#1000 <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fphotovoltaic-1000-dc-power-spd.html%0A[/a]

Safety Mat Safety Relay <br>Automation safety relay modules provide a high level of fail-safe operation for critical processes and protection. This safety mat and multi-function controllers safety relay offer 2 or 4-wire safety mats/edges. Automatic reset and monitored manual reset are available. <br> <br>The programmable safety relays support 3 safety output contacts (N/O) and 1 auxiliary output contacts (N/C) or 2NO+1NC+1SO or 2NO(t)+1NC(t). <br> <br>Features &amp; Advantages of Safety Mat Relay <br>2-wire safety mats/edge <br> <br>4-wire safety mats/edge <br> <br>Automatic reset <br> <br>Monitored manual reset <br> <br>Parameter of Safety Mat Safety Relay <br> <br>CZSR8301-3A1B CZSR8301-3A1B(M) CZSR8302-3A1B CZSR8303-3A1B <br>Supply voltage 24V DC/AC 24V DC/AC 24V DC/AC 100V~230V AC <br>Voltage tolerance 0.85~1.1 0.85~1.1 0.85~1.1 - <br>Current consumption ≤90mA (24V DC) / ≤240mA (24V AC) ≤90mA (24V DC) / ≤240mA (24V AC) ≤90mA (24V DC) / ≤240mA (24V AC) ≤7 VA (220V AC) <br>Input current ≤50mA (24V DC) ≤50mA (24V DC) ≤10mA (24V DC) ≤10mA (220V AC) <br>Cable resistance ≤15Ω ≤15Ω ≤15Ω ≤15Ω <br>Input devices Safety mats (4-wire) Safety mats (4-wire) Safety mats (4-wire) Safety mats, safety edges (2 or 4-wire) <br>Number of contacts 3NO+1NC 3NO+1NC 3NO+1NC 1.0KΩ ~ 10KΩ <br>Contact material AgSnO2 + 0.2 µm Au AgSnO2 + 0.2 µm Au AgSnO2 + 0.2 µm Au AgSnO2 + 0.2 µm Au <br>External contact fuse protection 10A gL/gG NEOZED (NO); 10A gL/gG NEOZED (NO); 10A gL/gG NEOZED (NO); 10A gL/gG NEOZED (NO); <br> 6A gL/gG NEOZED (NC) 6A gL/gG NEOZED (NC) 6A gL/gG NEOZED (NC) 6A gL/gG NEOZED (NC) <br>Mechanical endurance of contacts ≥107 ≥107 ≥107 ≥107 <br>Utilisation category In accordance with EN60947-5-1: In accordance with EN60947-5-1: In accordance with EN60947-5-1: In accordance with EN60947-5-1: <br> AC-15, 5A/230V; DC-13, 5A/24V AC-15, 5A/230V; DC-13, 5A/24V AC-15, 5A/230V; DC-13, 5A/24V AC-15, 5A/230V; DC-13, 5A/24V <br>Switch-on delay ≤300ms ≤150ms ≤300ms ≤300ms <br>Delay-on de-energisation ≤30ms ≤30ms ≤30ms ≤30ms <br>Recovery time ≤300ms ≤300ms ≤100ms ≤500ms <br>Supply short interruption 20ms 20ms 20ms 20ms <br>EMC EN60947, EN61000-6-2, EN61000-6-4 EN60947, EN61000-6-2, EN61000-6-4 EN60947, EN61000-6-2, EN61000-6-4 EN60947, EN61000-6-2, EN61000-6-4 <br>Vibration Vibration frequency: 10Hz~55Hz; Vibration frequency: 10Hz~55Hz; Vibration frequency: 10Hz~55Hz; Vibration frequency: 10Hz~55Hz; <br> Vibration amplitude: 0.35mm Vibration amplitude: 0.35mm Vibration amplitude: 0.35mm Vibration amplitude: 0.35mm <br>Ambient temperature -20℃~+60℃ -20℃~+60℃ -20℃~+60℃ -20℃~+60℃ <br>Storage temperature -40℃~+85℃ -40℃~+85℃ -40℃~+85℃ -40℃~+85℃ <br>Relative humidity 10%~90% 10%~90% 10%~90% 10%~90% <br>Elevation ≤2000m ≤2000m ≤2000m ≤2000m <br>Overvoltage category Ⅲ Ⅲ Ⅲ Ⅲ <br>Pollution degree 2 2 2 2 <br>Rated insulation voltage 250V AC 250V AC 250V AC 250V AC <br>Rated impulse voltage 6000V (1.2/50us) 6000V (1.2/50us) 6000V (1.2/50us) 6000V (1.2/50us) <br>Dielectric strength 1500V AC, 1min 1500V AC, 1min 1500V AC, 1min 1500V AC, 1min <br>Clearance and creepage distance In accordance with EN 60947-1 In accordance with EN 60947-1 In accordance with EN 60947-1 In accordance with EN 60947-1 <br>Safety integrity level SIL3 SIL3 SIL3 SIL3 <br>Performance level PLe PLe PLe PLe <br>Category Cat.4 Cat.4 Cat.4 Cat.4 <br> <br>CZSR8302-2A1B1S CZSR8302-2AT1BT1S <br>Supply voltage 24V DC/AC 24V DC/AC <br>Voltage tolerance 0.85~1.1 0.85~1.1 <br>Current consumption ≤120mA (24V DC), ≤300mA (24V AC) ≤120mA (24V DC), ≤300mA (24V AC) <br>Input current ≤10mA (24V DC) ≤10mA (24V DC) <br>Cable resistance ≤15Ω ≤15Ω <br>Input devices Safety mats, safety edges (2 or 4-wire) Safety switches, Contact switches <br>Terminal resistance 1.0KΩ ~ 10KΩ 1.0KΩ ~ 10KΩ <br>Number of contacts 2NO+1NC+1SO 2NO(t)+1NC(t) <br>Contact material AgSnO2 + 0.2 µm Au AgSnO2 + 0.2 µm Au <br>External contact fuse protection 10A gL/gG NEOZED (NO); 10A gL/gG NEOZED (NO); <br> 6A gL/gG NEOZED (NC) 6A gL/gG NEOZED (NC) <br>Mechanical endurance of contacts ≥107 ≥107 <br>Utilisation category In accordance with EN60947-5-1: In accordance with EN60947-5-1: <br> AC-15, 5A/230V; DC-13, 5A/24V AC-15, 5A/230V; DC-13, 5A/24V <br>Semiconductor output data Number of semi-output：1SO Number of semi-output：1SO <br> Driving ability：20mA/24V DC Driving ability：20mA/24V DC <br>Switch-on delay ≤300ms ≤300ms <br>Delay-on de-energisation ≤30ms(instantaneous) ≤30ms (instantaneous) <br> 0s, 0.5s, 1s, 2s, 3s, 5s(Deleted factory set as 5s) <br>Recovery time ≤100ms ≤100ms <br>Supply short interruption 20ms 20ms <br>EMC EN60947, EN61000-6-2, EN61000-6-4 EN60947, EN61000-6-2, EN61000-6-4 <br>Vibration Vibration frequency: 10Hz～55Hz; Vibration frequency: 10Hz～55Hz; <br> Vibration amplitude: 0.35mm Vibration amplitude: 0.35mm <br>Ambient temperature -20℃~+60℃ -20℃~+60℃ <br>Storage temperature -40℃~+85℃ -40℃~+85℃ <br>Relative humidity 10%~90% 10%~90% <br>Elevation ≤2000m ≤2000m <br>Overvoltage category Ⅲ Ⅲ <br>Pollution degree 2 2 <br>Rated insulation voltage 250V AC 250V AC <br>Rated impulse voltage 6000V (1.2/50us) 6000V (1.2/50us) <br>Dielectric strength 1500V AC, 1min 1500V AC, 1min <br>Clearance and creepage distance In accordance with EN 60947-1 In accordance with EN 60947-1 <br>Safety integrity level SIL3 SIL3 <br>Performance level PLe PLe <br>Category Cat.4 Cat.4 <br>#automation#direct#safety#relay <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fsafety-relay%2F%0A%0A[/a]