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Phoenix Contact 1086946
AllRelaysSafety Relays
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By Phoenix Contact

SKU
MPN
PSR-PC21-2NO-2NC-24DC-SP
Series PSR-PC

PSR-PC21-2NO-2NC-24DC-SP - Coupling relay

Coupling relay for SIL 3 high and low-demand applications, coupled digital output signals to the I/O, 2 independently controllable enabling current paths, 2 confirmation current paths, safe state off applications, test pulse filter, pluggable Push-in terminal block

  • Up to SIL 3 in accordance with IEC 61508, IEC 61511, and IEC 50156
  • Approved for Class I, Zone 2 applications
  • Force-guided contacts in accordance with EN 50205
  • Easy proof test according to IEC 61508 thanks to integrated signal contact
  • Low housing width of just 12.5 mm
  • Long service life thanks to filtering of controller test pulses
  • 2 enabling current paths, 2 confirmation current paths
  • Independent control of the relay channels possible
Technical Specifications

Utilization restriction

CCCex noteUse in potentially explosive areas is not permitted in China.

Product properties

Product familyPSRmini
ApplicationSafe switch off
ApplicationHigh demand
ApplicationLow demand
ApplicationEx
Mechanical service life10x 10⁶ cycles
Relay typeElectromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3

Times

Typ. starting time with Us< 70 ms (when controlled via A1 or A3 at US)
Typical release time< 30 ms (when controlled via A1 or A3 at US)
Recovery time500 ms

Electrical properties

Maximum power dissipation for nominal condition7.05 W (S1, S2, S3, S4 = ON, 2-channel load, UB = 30 V, US = 24 V, IS = 2*46 mA, IL² = 36 A, Rcontact = 0.05 Ω)
Nominal operating mode100% operating factor

Air clearances and creepage distances between the power circuits

Rated Insulation Voltage250 V AC
Rated surge voltage/insulationSafe isolation, reinforced insulation 6.4 kV from (A1/A2, A3/A4, 21/22, 41/42) to (13/14, 33/34) and between (13/14) and (33/34)
Rated surge voltage/insulationBasic insulation 4 kV between all current paths and housing
Rated surge voltage/insulation500 V isolation between (A1/A2, A3/A4) and (21/22, 41/42)

Supply

DesignationA1/A2, A3/A4
Rated control circuit supply voltage US19.2 V DC ... 30 V DC
Rated control circuit supply voltage US24 V DC -20 % / +25 %
Rated control supply current IStyp. 15 mA (per channel (configurable))
Rated control supply current IStyp. 25 mA (per channel (configurable))
Rated control supply current IStyp. 40 mA (per channel (configurable))
Rated control supply current IStyp. 46 mA (per channel (configurable))
Power consumption at UStyp. 360 mW (per channel (configurable))
Power consumption at UStyp. 600 mW (per channel (configurable))
Power consumption at UStyp. 960 mW (per channel (configurable))
Power consumption at UStyp. 1.1 W (per channel (configurable))
Inrush Currenttyp. 200 mA (Δt = 10 µs at Us, per channel (configurable))
Inrush Currenttyp. 300 mA (Δt = 10 µs at Us, per channel (configurable))
Filter time2 ms (in the event of voltage dips at Us)
Protective circuitSerial protection against polarity reversal; 38.6 V suppressor diode

Relay: Enabling current paths (13/14, 33/34)

Output description2 N/O contacts parallel, without delay, safety-related, floating
Number of Outputs2
Contact switching type2 enabling current paths
Contact MaterialAgSnO2
Switching voltagemin. 12 V DC
Switching voltagemax. 250 V AC/DC (Observe the load curve)
Switching capacitymin. 60 mW
Inrush Currentmin. 3 mA
Inrush Currentmax. 6 A
Switching capacity in accordance with IEC 60947-5-14 A (24 V (DC13))
Switching capacity in accordance with IEC 60947-5-15 A (230 V (AC15))
Limiting Continuous Current6 A (High demand)
Limiting Continuous Current4 A (Low demand)
Sq. Total current72 A2 (High-demand, observe derating)
Sq. Total current32 A2 (Low-demand, observe derating)
Switching frequency1 Hz
Mechanical service life10x 10⁶ cycles
Output fuse6 A gL/gG
Output fuse4 A gL/gG (for low-demand applications)

Relay: Confirmation current paths (21/22, 41/42)

Output description2 N/C contacts parallel, without delay, safety-related, floating
Number of Outputs2
Contact switching type2 confirmation current paths
Contact MaterialAgCuNi, + Au
Switching voltagemin. 5 V DC
Switching voltagemax. 30 V DC
Switching capacitymin. 20 mW
Inrush Currentmin. 1 mA
Inrush Currentmax. 100 mA
Limiting Continuous Current100 mA
Switching frequency1 Hz
Mechanical service life10x 10⁶ cycles
Output fuse150 mA Fast-blow

Conductor connection

Connection MethodPush-in connection
Conductor cross section rigid0.2 mm² ... 1.5 mm²
Conductor cross section flexible0.2 mm² ... 1.5 mm²
Conductor cross section, flexible, with ferrule, with plastic sleeve0.25 mm² ... 1.5 mm² (only together with CRIMPFOX 6)
Conductor cross section flexible, with ferrule without plastic sleeve0.25 mm² ... 1.5 mm² (only together with CRIMPFOX 6)
Conductor cross-section AWG24 ... 16
Stripping length8 mm

Signaling

Status display2 x green LEDs

Dimensions

Width12.5 mm
Height116.6 mm
Depth114.5 mm

Material specifications

Color (Housing)yellow (RAL 1018)
Housing MaterialPolyamide

Safety data

Stop category0

Safety data: EN ISO 13849

Category4
Performance level (PL)e

Safety data: EN 50156-2

Safety Integrity Level (SIL)3 (Reference IEC 61508)

Safety data: IEC 61508 – High-demand for 2-channel wiring (1oo2 structure)

Safety Integrity Level (SIL)3

Safety data: IEC 61508 – High-demand for 1-channel wiring (1oo1 structure)

Safety Integrity Level (SIL)2

Safety data: IEC 61508 – Low-demand for 2-channel wiring (1oo2 structure)

Safety Integrity Level (SIL)3

Safety data: IEC 61508 – Low-demand for 1-channel wiring (1oo1 structure)

Safety Integrity Level (SIL)2

Safety data: EN IEC 62061

Safety Integrity Level (SIL)3

Ambient conditions

Degree of ProtectionIP20
Min. degree of protection of inst. locationIP54
Ambient Temperature (Operation)-40 °C ... 70 °C (observe derating)
Ambient temperature (storage/transport)-40 °C ... 85 °C
Maximum altitude≤ 2000 m (Above sea level)
Max. permissible humidity (storage/transport)75 % (on average, 85% infrequently, non-condensing)
Max. permissible relative humidity (operation)75 % (on average, 85% infrequently, non-condensing)
Shock15g
Vibration (Operation)10 Hz ... 150 Hz, 2g

ATEX

Identification II 3G  Ex ec nC IIC T4 Gc
CertificateDEMKO 19 ATEX 2240X

IECEx

IdentificationEx ec nC IIC T4 Gc
CertificateIECEx ULD 19.0023X

UL, USA/Canada

IdentificationcULus
CertificateE140324

UL Ex, USA / Canada

IdentificationClass I, Zone 2, AEx ec nC IIC T4 / Ex ec nC IIC Gc T4 X
IdentificationClass I, Div. 2, Groups A, B, C, D, T4
CertificateE360692

CE

IdentificationCE-compliant

Environmental simulation test

IdentificationG3
CertificateISA-S71.04

CCC / China-Ex

IdentificationEx ec nC IIC T4 Gc
Certificate2022122304115696

Air clearances and creepage distances between the power circuits

Standards/regulationsEN 61010-1, EN 60947-1, EN 60079-7, EN 60079-15

Mounting

Mounting TypeDIN rail mounting
Assembly instructionsSee derating curve
Mounting Positionvertical or horizontal

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Additional Information

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