| Product Name | CZLBX-48-S Surge protective device |
Nominal operating voltage Un |
24VDC |
Maximun continuous operating voltage Uc |
48VDC |
Nominal Discharge Current In(8/20us) |
10kA |
Maximum Discharge Current Imax(8/20us) |
20kA |
| Certification | TUV SIL3 |
| Protected Objects/Systems |
Thermal Resistance;RS-232;AI;AO;DI;DO |
| Features | 20kA; Series Connection; 1/2''NPT |
| Protected Objects/Systems | Thermal Resistance; RS-485; AI; AO; DI;DO |
| Depth | 75.0mm |
| Height | 14.0mm |
| Width | 30.0mm |
| Material | 304 Stainless Steel |
| Protection Level | IP65 |
| Flame Retardant Grade | V0 |
| Nominal operating voltage Un | 24VDC |
| Maximun continuous operating voltage Uc | 48VDC |
| Nominal Operating Current IL | 500mA |
| Resistance per Wire | 1ohm |
| Response Time | 1ns |
| Number of Wires | 3 |
| Bandwidth | 10MHz（-0.5dB) |
| Leakage Current | ＜1uA |
| Nominal Discharge Current In（8/20us) | 10kA |
| Maximum Discharge Current Imax（8/20us） | 20kA |
| Total Discharge Current Itotal | 40kA |
| Impulse Current Iimp（10/350us) | 2.5kA |
| Voltage Protection Level Up（8/20us) | 85V（Line to Line）/600V（Line to Ground） |
| Maximum Input Voltage Ui | 50V |
| Maximum Input Current Ii | 32mA |
| Maximum Input Power Pi | 0.4W |
| Maximum Internal Capacitance Ci | 0mH |
| Maximum Internal Inductance Li | 0uF |
| λSU | 6.45 |
| λSD | 0 |
| λDU | 1.75 |
| λDD | 12.3 |
| λtotal | 20.5 |
| Safe Failure Fraction（SFF） | 91.46% |
| Safety Integrity Level（SIL） | SIL3 |
| Certification | Explosion-Proof Certification; Lightning Protection Certification; Functional Safety Certification |
| Explosion-Proof Certification | Ex ia ⅡC T4～T6 Ga; Ex d IIC T4～T6 Gb |
| Lightning Protection Certification | Shanghai Lightning Protection Products Test Center |
| Functional Safety | SIL3 |
| CQC Certification | CQC Mark Certification |
| Names | GB/T 18802.21 / IEC 61643-21; GB 3836.1 / IEC 60079-0; GB 3836.2 / IEC 60079-1; GB 3836.4 / IEC 60079-11; IEC 61508 |
| Ambient Temperature (Operation) | ﹣40—70℃ |
| Ambient Temperature (Storage) | ﹣40—85℃ |
| Permissible Humidity (Operation) | 5%—95% |
| Applicable Location | Field Instrument Interface |
| Maximum Altitude | 2000m |
| Conductor Cross Section Solid | 0.2—4mm2 |
| Conductor Cross Section Flexible | 0.2—2.5mm2 |
| Stripping Length | 8mm |
| Connection Method | Terminal Connection |
| Maximum Tightening Torque | 0.5Nm |
| Mounting Position | Instrument |
| Mounting Method | Threaded Connection |
| Interface | 1/2''NPT |
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