Safety switches - PSR-CT-M-SEN-1-8 2702975

Proximity safety circuit up to Cat. 4, PL e (EN ISO 13849), SIL 3 (IEC 61508), multicode sensor with RFID coding, model 4 (EN ISO 14119), automatic or manual start, integrated diagnostics, 24 V DC supply, IP69K, M12 connector

Product Details

The PSR-CT safety circuit consists of a combination of a PSR-CT-...-SEN-1-8 sensor with varying coding types and a coded PSR-CT-C-ACT actuator. It provides maximum tamper protection and the highest level of safety in accordance with EN ISO 14119. The PSR-CT safety circuit is available with the following types of coding: Fixcode: For the sensor to detect the actuator, the actuator must first be associated with the sensor via a learning process. The learning process can only be completed once. The sensor and actuator are then permanently assigned to each other by their coding. Safety circuits with fixcode evaluation achieve a high coding levelUnicode: For the sensor to detect the actuator, the actuator must first be assigned to the sensor via a learning process. The learning process for a new actuator can be repeated any number of times. The sensor only detects the last learned actuator. Safety circuits with unicode evaluation achieve a high coding levelMulticode: The sensor detects every actuator of the approved type. No specific actuator code can be assigned. Safety circuits with multicode evaluation achieve a low coding level.

Designation DGN
Output description p-wired
Number of outputs 1
Output voltage min. (UB - 1.5 V (HIGH))
Output voltage max. (UB (HIGH))
Output voltage min. 0 V DC (LOW)
Output voltage max. 1 V DC (LOW)
Current min. 1 mA
Current max. 50 mA
Short-circuit-proof yes
Safety output
Designation FO1A, FO1B
Output description Semiconductor outputs, p-wired
Number of outputs 2
Output voltage min. (UB - 1.5 V (HIGH FO1A, FO1B))
Output voltage max. (UB (HIGH FO1A, FO1B))
Output voltage min. 0 V DC (LOW FO1A/FO1B)
Output voltage max. 1 V DC (LOW FO1A/FO1B)
Switching current min. 1 mA (per safety output)
Switching current max. 150 mA (per safety output)
Residual current ≤ 0.25 mA
Utilization category in accordance with IEC 60947-5-2 150 mA (24 V (DC13))
Short-circuit-proof yes
Note on protection circuit NOTE: Protect the outputs under inductive loads with a freewheeling diode.

Environmental Product Compliance
REACh SVHC Lead 7439-92-1
China RoHS Environmentally Friendly Use Period = 50 years
China RoHS For details about hazardous substances go to tab “Downloads”, Category “Manufacturer's declaration”

Short-circuit current typ. 100 A (conditional short-circuit current)
Switching frequency max. 1 Hz
Rated insulation voltage max. 300 V
Rated surge voltage max. 1.5 kV
Supply voltage 24 V DC ±15 % (PELV, controlled, residual ripple < 5% )
Current consumption max. 40 mA
Protection min. 0.25 A (to be performed externally)
Protection max. 8 A (to be performed externally)

Dimensional drawing
Width 26.5 mm
Height 40 mm
Depth 18 mm
Minimum distance 140 mm (between two safety circuits)
Minimum distance 7 mm (between sensor and actuator when traveling in the Y-direction)

Status display 2 LEDs

Color yellow
Housing material PBT

Mounting type not flush
Assembly instructions Note EN ISO 14119
Assembly instructions Maximum tightening torque to secure: 0.8 Nm
Mounting position any

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) 6 x 10-10

EMC conformance EN 60947-5-3

Degree of protection IP65/IP67/IP69/IP69K
Degree of protection IP67 (with SAC cabling)
Ambient temperature (operation) -25 °C ... 55 °C
Ambient temperature (storage/transport) -40 °C ... 70 °C
Vibration (operation) in accordance with EN 60947-5-2

Connection technology
Connection technology M12 connector
pluggable no
Number of positions 8
Conductor connection
Connection method Connector

Application Safety door monitoring
Application Position monitoring
Technology Transponder
Discrepancy time max. 10 ms (between the safety outputs)
Switch-on delay typ. 5 s (after switching UB on)
Switch-on time max. 400 ms (for the safety outputs)
Risk time max. 125 ms (Stand-alone device)
Test pulses typ. 300 µs (Test pulse duration)
Test pulses approx. 100 ms (Test pulse interval)
Delay time typ. 10 ms (Risk time delay per device)
Insulation characteristics
Protection class III

Order Key 2702975
Packing unit 1 pc
Minimum order quantity 1 pc
Catalog Page Page 213 (C-6-2019)
GTIN 4055626447025
Weight per Piece (including packing) 42.3 GRM
Weight per Piece (excluding packing) 41.6 GRM
Customs tariff number 85365019
Country of origin DE

UL Listed

cUL Listed

Functional Safety


Industry Canada

cULus Listed

Your advantages

Flexible use, thanks to compact design
Safe, cost-effective complete solution
Safe series connection in accordance with EN ISO 14119
Integrated reset function on the switch
4 actuation settings, 3 travel directions
Tamper protection via RFID transponder technology
Rapid diagnostics, thanks to comprehensive status information
Consistent M12 connection technology for convenient installation