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Phoenix Contact 2702522
AllRelaysSafety Relays

2702522

Phoenix ContactOfficial Distributor

By Phoenix Contact

SKU
PHX2702522
MPN
PSR-PC51-1NO-1NC-24DC-SC
Weight
0.252 kg
Series PSR-PC

PSR-PC51-1NO-1NC-24DC-SC - Coupling relay

Coupling relay for electrical isolation and power adaptation for SIL 3 F&G applications, low demand, load diagnostics in the Off and On state for wire break and short circuit, 1 enabling current path, test pulse filter, plug-in screw terminal block, width: 17.5 mm

  • Earth leakage monitoring
  • Suitable for low-demand applications up to SIL 3 in accordance with IEC 61508, IEC 61511, and EN 50156
  • Configurable Off and On state diagnostics
  • Active error acknowledgment via A1 at DO
  • Integrated DCS test pulse filter
  • 1 enabling current path, 1 signaling current path
Technical Specifications

Utilization restriction

EMC noteEMC: class A product, see manufacturer's declaration in the download area
CCCex noteUse in potentially explosive areas is not permitted in China.

Product properties

Product familyPSRmini
ApplicationSafe switch on
ApplicationLow demand
ApplicationEx
Relay typeElectromechanical relay

Times

Typ. starting time with Ustyp. 100 ms (when controlled via A1-A2)
Typical release timetyp. 30 ms (when controlled via A1-A2)
Recovery time1 s (when controlled via A1-A2)

Electrical properties

Maximum power dissipation for nominal condition3.8 W (ati UB = 26.4 V DC, UBD = 26.4 V DC, IL = 3 A)
Nominal operating mode100% operating factor

Air clearances and creepage distances between the power circuits

Rated Insulation Voltage250 V AC
Rated surge voltage/insulationBasic insulation 4 kV between all current paths and housing
Rated surge voltage/insulationSafe isolation, 6 kV reinforced insulation from (A1/A2, 24V/0V, 21/22, and TP1/TP2/TP3) to the enabling current path (L, L', LO, LO', NI, NI', N,N')

Supply

DesignationA1/A2
Rated control circuit supply voltage US20.4 V DC ... 26.4 V DC
Rated control circuit supply voltage US24 V DC -15 % / +10 %
Rated control supply current IStyp. 75 mA
Power consumption at UStyp. 2 W (at US/UD; On state)
Inrush Currentmax. 100 mA
Filter time2 ms (at A1-A2 in the event of voltage dips at Us)
Filter timemax. 2 ms (at A1-A2; low test pulse width)
Filter time≥ 100 ms (at A1-A2; low test pulse rate)
Filter timemax. 17 ms (at A1-A2; high test pulse width)
Filter time≥ 800 ms (at A1-A2; high test pulse rate)
Protective circuitSurge protection; 36 V suppressor diode
Protective circuitReverse polarity protection
Designation24V/0V
Diagnostic supply voltage UD24 V DC -20 % / +25 %
Input current at UD35 mA (at UD = 24 V)
Input current at UD45 mA (at UD = 19 V)
Input current at UD25 mA (at UD = 30 V)
Inrush current at UD1.5 A (Δt < 10 µs)
Power consumption at UDtyp. 0.9 W (at UD; Off state)
Protective circuitSurge protection; 33 V suppressor diode
Protective circuitReverse polarity protection

Digital: Test points for proof test (T1, T2, T3)

Number of Inputs3
Inrush Currenttyp. 200 mA
Protective circuitSurge protection; 36 V suppressor diode
Current consumptiontyp. 20 mA (Input TP1)
Current consumptiontyp. 20 mA (Input TP2)
Current consumptiontyp. 30 mA (Input TP3)

Relay: Enabling current path (L-LO-NI-N / L'-LO'-NI'-N')

Output descriptionsafety-related N/O contacts
Number of Outputs1 (undelayed)
Contact switching type1 enabling current path
Contact MaterialAgNi, gold-flashed, Ag alloy
Switching voltagemin. 16 V AC/DC
Switching voltagemax. 250 V AC
Switching voltagemax. 125 V DC
Switching capacitymin. 1 W
Inrush Currentmin. 50 mA
Inrush Currentmax. 5 A (Δt  1 s)
Limiting Continuous Current3 A (Observe derating, load type, and on-load voltage)
Sq. Total current9 A2 (observe derating)
Switching frequencymax. 0.5 Hz
Diagnostic threshold7 Ω ... 20 kΩ (configurable)
Mechanical service lifeapprox. 5x 10⁷ cycles

Relay: Signaling current path (21/22)

Output descriptionnon-safety-related N/C contact
Number of Outputs1 (without delay, floating)
Contact switching type1 signaling current path
Switching currentmax. 100 mA
Inrush Current≤ 800 mA (Δt  100 ms)
Short-circuit protectionno

Connection technology

pluggableyes

Conductor connection

Connection MethodScrew connection
Conductor cross section rigid0.2 mm² ... 2.5 mm²
Conductor cross section flexible0.2 mm² ... 2.5 mm²
Conductor cross-section AWG24 ... 12
Stripping length7 mm
Screw threadM3

Signaling

Status display1 x yellow LED, 1 x green LED, 1 x red LED

Dimensions

Width17.5 mm
Height112.2 mm
Depth114.5 mm

Material specifications

Color (Housing)yellow (RAL 1018)
Housing MaterialPolyamide

Safety data: EN 50156-2

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

Safety data: IEC 61508 - Low demand

Safety Integrity Level (SIL)3

Ambient conditions

Degree of ProtectionIP20
Min. degree of protection of inst. locationIP54
Ambient Temperature (Operation)-25 °C ... 60 °C (observe derating)
Ambient temperature (storage/transport)-40 °C ... 65 °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, 11 ms
Vibration (Operation)10 Hz ... 150 Hz, 2g
Air pressure (operation)79 kPa ... 106 kPa
Air pressure (storage/transport)79 kPa ... 106 kPa

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/regulationsIEC 60664-1

Mounting

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

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