Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456
CZLBX-48-S  Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456
SPD for on site instruments; 2 wires; mounted in series through thread: 1/2 ''NPT, male and female; C2: 20kV/10kA, D1: 2.5kA/line; intrinsic safety and flameproof: Ex ia IIC T4~T6 Ga, Ex d IIC T4~T6 Gb;
CZLBX-48-S
Product details
Technichal Data
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Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456

Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456



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



Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456


Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456

Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456

Screw Mounting SPD(2 wires; 1/2 ''NPT, male and female )7078456


Product Features
Protections
Dimensions
Housing
Basic Parameter
Security Data(Lightning Protection)
Security Data(Explosion-Proof)
Safety Characteristic Parameter(SIL)
Product Approvals
Certification
Standards
Ambient Requirements
Connection Parameters
Mounting
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Technichal Data
Product Features
Features 20kA; Series Connection; 1/2''NPT
Protections
Protected Objects/Systems Thermal Resistance; RS-485; AI; AO; DI;DO
Dimensions
Depth 75.0mm
Height 14.0mm
Width 30.0mm
Housing
Material 304 Stainless Steel
Protection Level IP65
Flame Retardant Grade V0
Basic Parameter
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
Security Data(Lightning Protection)
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)
Security Data(Explosion-Proof)
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
Safety Characteristic Parameter(SIL)
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
Product Approvals
Certification Explosion-Proof Certification; Lightning Protection Certification; Functional Safety Certification
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
Standards
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 Requirements
Ambient Temperature (Operation) ﹣40—70℃
Ambient Temperature (Storage) ﹣40—85℃
Permissible Humidity (Operation) 5%—95%
Applicable Location Field Instrument Interface
Maximum Altitude 2000m
Connection Parameters
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
Mounting Position Instrument
Mounting Method Threaded Connection
Interface 1/2''NPT
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