Safety relays - PSR-SPP- 24DC/ESP4/2X1/1X2

Safety relay for SIL 3 high and low-demand applications, also approved in accordance with EN 50156, Germanischer Lloyd, and EN ISO 13849, emergency stop and safety door monitoring, 1-channel, 2 enabling current paths, 1 signal contact, width: 22.5 mm, pluggable Push-in terminal block


Product Details

Product type Safety relays
Application Emergency stop
Process technology
Safety door
Mechanical service life approx. 107 cycles
Relay type Electromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3
Insulation characteristics
Overvoltage category III

Maximum power dissipation for nominal condition 15.9 W (I² = 72 A²)
Nominal operating mode 100% operating factor
Rated insulation voltage 250 V
Rated surge voltage/insulation 6 kV / Safe isolation, increased insulation
Basic insulation 4 kV between all current paths and housing

Rated control circuit supply voltage US 24 V DC -15 % / +10 %
Power consumption at US 1.2 W
Rated control supply current IS typ. 50 mA DC
Inrush current 1 A (Δt <10 ms at Us)
Filter time max. 3 ms (Test pulse duration)
Typical response time 60 ms (Automatic/manual start)
Typical release time 20 ms
Recovery time approx. 1 s
Protective circuit Surge protection; Suppressor diode, 33 V (A1 - A2, Y2 - A2)
Reverse polarity protection
Operating voltage display Green LED
Status display Green LED

Contact type 2 enabling current paths
1 signaling current path (type B according to EN 50205)
Contact material AgSnO2, gold-flashed
Maximum switching voltage 250 V AC/DC (Observe the load curve)
Minimum switching voltage 10 V
Limiting continuous current 6 A (N/O contact/N/C contact, high demand)
4 A (N/O contact, for low-demand applications)
Maximum inrush current 6 A
Inrush current, minimum 10 mA
Sq. Total current 72 A2 (observe derating)
Interrupting rating (ohmic load) max. 144 W (24 V DC, τ = 0 ms)
200 W (48 V DC, τ = 0 ms)
77 W (110 V DC, τ = 0 ms)
70 W (220 V DC, τ = 0 ms)
1500 VA (250 V AC, τ = 0 ms)
Switching capacity min. 0.2 W
Switching capacity (360/h cycles) 5 A (24 V (DC13))
5 A (230 V (AC 15))
Switching capacity (3600/h cycles) 5 A (24 V (DC13))
5 A (230 V (AC 15))
Output fuse 6 A gL/gG NEOZED (High demand)
4 A gL/gG NEOZED (Low demand)
Also applies to applications according to EN 50156-1.

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

Width 22.5 mm
Height 112 mm
Depth 114.5 mm

Housing material Polyamide
Housing color yellow

Safety data
Stop category 0
Safety data: EN ISO 13849
Category 4
Performance level (PL) e
Safety data: IEC 61508 - High demand
Safety Integrity Level (SIL) 3
Probability of a hazardous failure per hour (PFHD) 1.16 x 10-10
Proof test interval 240 Months
Duration of use 240 Months
Safety data: IEC 61508 - Low demand
Safety Integrity Level (SIL) 3
Probability of a hazardous failure on demand (PFDAVG) 1.24 x 10-4
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) -20 °C ... 55 °C
Ambient temperature (storage/transport) -40 °C ... 70 °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

Certificate CE-compliant

Air clearances and creepage distances between the power circuits
Standards/regulations DIN EN 50178/VDE 0160

Mounting type DIN rail mounting
Mounting position On horizontal and vertical DIN rail

Item number 2981017
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key C18
Product Key DNA161
Catalog Page Page 256 (C-6-2019)
GTIN 4017918911072
Weight per Piece (including packing) 203.4 g
Weight per Piece (excluding packing) 199.6 g
Customs tariff number 85371098
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


Approval ID: RU C-DE.A*30.B.01082

UL Listed

Approval ID: FILE E 140324

cUL Listed

Approval ID: FILE E 140324

Functional Safety

Approval ID: 968/EZ 406.05/22

Functional Safety

Approval ID: 01/205/0763.03/22


Approval ID: TAA00000K4

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 Cat. 4/PL e in accordance with ISO 13849-1, SIL 3 in accordance with IEC 62061, SIL 3 in accordance with IEC 61508
1-channel control
Safe isolation
With inrush current reduction, therefore suitable for coupling to failsafe controllers (PSR-ESP4)