Safety switch sensor - PSR-CT-C-SEN-1-8

Proximity safety circuit up to Cat. 4, PL e (EN ISO 13849), SIL 3 (IEC 61508), unicode 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.

Product type Safety switches
Application Safety door monitoring
Position monitoring
Technology Transponder
Insulation characteristics
Protection class III
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)
approx. 100 ms (Test pulse interval)
Delay time typ. 10 ms (Risk time delay per device)

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)
max. 8 A (to be performed externally)

Designation DGN
Output description p-wired
Number of outputs 1
Output voltage min. (UB - 1.5 V (HIGH))
max. (UB (HIGH))
min. 0 V DC (LOW)
max. 1 V DC (LOW)
Current min. 1 mA
max. 50 mA
Short-circuit-proof yes
Designation FO1A, FO1B
Output description Semiconductor outputs, p-wired
Number of outputs 2
Output voltage min. (UB - 1.5 V (HIGH FO1A, FO1B))
max. (UB (HIGH FO1A, FO1B))
min. 0 V DC (LOW FO1A/FO1B)
max. 1 V DC (LOW FO1A/FO1B)
Switching current min. 1 mA (per safety output)
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.

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

Status display 2 LEDs

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

Color yellow
Housing material PBT

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

Ambient conditions
Degree of protection IP65/IP67/IP69/IP69K
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

EMC conformance EN 60947-5-3

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

Item number 2702972
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key D21
Product Key DNA611
Catalog Page Page 213 (C-6-2019)
GTIN 4055626446899
Weight per Piece (including packing) 40.8 g
Weight per Piece (excluding packing) 40.8 g
Customs tariff number 85365019
Country of origin DE


ECLASS-9.0 27272403
ECLASS-10.0.1 27272403
ECLASS-11.0 27272403


ETIM 8.0 EC003015


UNSPSC 21.0 32151800

UL Listed

Approval ID: FILE E 196162

cUL Listed

Approval ID: FILE E 196162

Functional Safety

Approval ID: Z10 18 04 29429 005


Approval ID: YG3-PSR1

Industry Canada

Approval ID: 4720B-PSR1

cULus Listed

China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Your advantages

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
Safe series connection in accordance with EN ISO 14119
Flexible use, thanks to compact design
Safe, cost-effective complete solution