Coupling relay - PSR-PC32-2NO-1NC-24-230UC-SP

Coupling relay for SIL 3 high and low-demand applications, couples digital signals to the I/O, 24 V ... 230 V wide-range input, 2 enabling current paths (1x up to 60 V, 1x up to 250 V) 1 confirmation current path, safe state off applications, pluggable Push-in terminal block

Product Details

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

Product type Coupling relay
Application Safe switch off
High demand
Low demand
Relay type Electromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3
Insulation characteristics
Overvoltage category III
Typical response time < 100 ms (with Us when controlled via A1)
Typical release time < 200 ms (with Us when controlled via A1)
Recovery time < 500 ms

Maximum power dissipation for nominal condition 5.7 W (at US = 42 V AC, IL² = 72 A²)
Nominal operating mode 100% operating factor
Rated control circuit supply voltage US 24 V AC/DC ... 230 V AC/DC -15 % ... +10 %
Rated control supply current IS 75 mA (24 V DC)
34 mA (48 V DC)
97 mA (42 V AC)
28 mA (120 V AC)
16 mA (230 V AC)
Power consumption at US 1.8 W (with DC)
2.1 W (with AC)
Apparent power typ. 4.1 VA
Inrush current typ. 16 A (Δt < 100 µs at Us)
< 5 mA (at terminal blocks 24V/GND at UD)
Filter time 10 ms (24 V DC, A1 in the event of voltage dips at Us )
max. 1.5 ms (at A1-A2; test pulse width; at 24 V DC)
7.5 ms (at A1-A2; test pulse rate; at 24 V DC)
Test pulse rate = 5 x Test pulse width
Diagnostic supply voltage UD 24 V DC -15 % / +10 %
Input current at UD < 5 mA (at terminal blocks 24V/GND at UD)
Protective circuit US: surge protection; Varistor 275 V
UD: surge protection; 33 V suppressor diode
UD: Polarity protection
Rated insulation voltage 250 V AC
Rated surge voltage/insulation Basic insulation 4 kV between all current paths and housing
Safe isolation, reinforced insulation 2.5 kV between (93/94) and (31/32, 24V/GND)
Safe isolation, reinforced insulation 6 kV:
between (A1/A2) and (13/14) and (31/32, 24V/GND)
between (A1/A2) and (93/94)
between (13/14) and (93/94)

Relay: Enabling current path
Output description safety-related N/O contacts
Number of outputs 2 (undelayed)
Contact type 2 enabling current paths
Contact material AgSnO2
Switching voltage min. 12 V AC/DC
max. 250 V AC/DC (13/14, observe the load curve)
max. 60 V AC/DC (93/94, observe the load curve)
Switching capacity min. 60 mW
Inrush current min. 3 mA
max. 6 A
Switching capacity (360/h cycles) 4 A (24 V (DC13))
5 A (230 V (AC 15))
Limiting continuous current 6 A (observe derating)
Sq. Total current 72 A2 (observe derating)
Switching frequency max. 1 Hz
Mechanical service life 10x 106 cycles
Output fuse 6 A gL/gG
4 A gL/gG (for low-demand applications)
Relay: Confirmation current path
Output description Safety-related N/C contacts
Number of outputs 1 (undelayed)
Contact type 1 confirmation current path
Contact material AgCuNi, + Au
Switching voltage min. 3.3 V AC/DC
max. 26.4 V DC
Switching capacity min. 3.3 mW
Inrush current min. 1 mA
max. 100 mA
Limiting continuous current 100 mA
Output fuse 150 mA fast blow

Connection technology
pluggable yes
Conductor connection
Connection method Push-in connection
Conductor cross section solid 0.2 mm² ... 1.5 mm²
Conductor cross section flexible, with ferrule without plastic sleeve 0.25 mm² ... 1.5 mm² (only together with CRIMPFOX 6)
Conductor cross-section AWG 24 ... 16

Status display 1 x green LED, 1 x yellow LED
Operating voltage display 1 x yellow LED

Width 17.5 mm
Height 117.4 mm
Depth 114.5 mm

Housing material Polyamide
Housing color yellow

Safety data
Stop category 0
Safety data: EN 50156-2
Safety Integrity Level (SIL) 3 (Reference IEC 61508)
Safety data: IEC 61508 - High demand
Designation For use in high-demand applications, the diagnostics function must be implemented via the confirmation current path.
Equipment type Type A
Safety Integrity Level (SIL) 3 (< 15% of the overall SIL)
Safe Failure Fraction (SFF) 99.99 %
MTBF 22.44 Years (includes errors which are not part of the safety function; MTTR = 8 h)
λSU 3135.22 FIT
λDD 62.35 FIT
Probability of a hazardous failure per hour (PFHD) 1,00 x 10-9 (4 A DC13; 5 A AC15; 8760 switching cycles/year)
Proof test interval 240 Months
Duration of use 240 Months
Safety data: IEC 61508 - Low demand
Equipment type Type A
Safety Integrity Level (SIL) 3 (< 15% of the overall SIL)
Safe Failure Fraction (SFF) 99.85 %
MTBF 22.51 Years (includes errors which are not part of the safety function; MTTR = 8 h)
λSU 3577.81 FIT
λDU 5.5 FIT
Probability of a hazardous failure on demand (PFDAVG) 1.32 x 10-4
2.41 x 10-5 (for proof test interval = 1 year)
Proof test interval 72 Months
Duration of use 240 Months

Ambient conditions
Degree of protection IP20
Min. degree of protection of inst. location IP54
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)
Shock 15g
Vibration (operation) 10 Hz ... 150 Hz, 2g

Identification  II 3 G Ex nA nC IIC T4 Gc
Certificate DEMKO 14 ATEX 1284X
Identification Ex nA nC IIC T4 Gc
Certificate IECEx ULD 14.0003X
Identification cULus
Certificate E140324
Identification Class I, Zone 2, AEx nA nC IIC T4 / Ex nA nC IIC Gc T4 X
Class I, Div. 2, Groups A, B, C, D, T4
Certificate E360692
Certificate CE-compliant

Air clearances and creepage distances between the power circuits
Standards/regulations EN 60664-1, EN 60079-15

Mounting type DIN rail mounting
Assembly instructions See derating curve
Mounting position vertical or horizontal

Item number 2700582
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key C18
Product Key DNA182
Catalog Page Page 252 (C-6-2019)
GTIN 4046356916370
Weight per Piece (including packing) 251.6 g
Weight per Piece (excluding packing) 226.5 g
Customs tariff number 85364900
Country of origin DE


ECLASS-9.0 27371819
ECLASS-10.0.1 27371819
ECLASS-11.0 27371819


ETIM 8.0 EC001449


UNSPSC 21.0 39122200

UL Listed

Approval ID: FILE E 140324

cUL Listed

Approval ID: FILE E 140324

Functional Safety

Approval ID: 44-780-15124308

Functional Safety

Approval ID: 44-205-15124302


Approval ID: IECEx ULD 14.0003 X

cUL Listed

Approval ID: File E 360692

UL Listed

Approval ID: File E 360692


Approval ID: DEMKO 14 ATEX 1284 X

cULus Listed

cULus Listed

REACh SVHC Lead 7439-92-1
China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Your advantages

Up to SIL 3 in accordance with IEC 61508
Forcibly guided contacts according to EN 50205
Easy proof test according to IEC 61508
Slim design
Wide-range input
Corrosion protection through protective coating on the PCB