https://www.phoenixcontact.com/us/products/2700578
08/30/2016Page4/6
Coupling relay-PSR-PC20-1NO-1NC-24DC-SP-2700578
Technical data
Connection data
Conductor cross section AWG min. 24
Conductor cross section AWG max. 16
Stripping length 8 mm
Safety-related characteristic data
Stop category 0
Designation IEC 61508 - High demand
Safety Integrity Level (SIL) 3 (<15%of the overall SIL)
Designation IEC 61508 - Low demand
Safety Integrity Level (SIL) 3 (<15%of the overall SIL)
Designation EN50156
Safety Integrity Level (SIL) 3
Standards and Regulations
Shock 15g
Designation Air clearances and creepage distances between the power circuits
Standards/regulations DINEN50178, EN60079-15
Rated insulation voltage 250 V AC
Rated surge voltage/insulation
Safe isolation, 6kV reinforced insulation from control circuit, start circuit,
confirmation current path, signal output to the enabling current path; 4 kV/
basic insulation between all current paths and housing
Degree of pollution 2
Overvoltage category III
Vibration (operation) 2g
Conformance CE-compliant
UL, USA/Canada cULus
Class I, Zone 2, AEx nA nC IIC T4 / Ex nA nC IIC Gc T4 X
GL C, EMC2
Drawings
