EUCHNER – More than safety.
EUCHNER – More than safety.

CTP-L1-AP-U-HA-AZ-SII-129477 (Order no. 129477)

Transponder-coded safety switch CTP-AP, 2 x M12

  • Safety switch with guard locking and integrated evaluation electronics
  • Direct connection to decentralized peripheral systems (e.g. ET200pro)
  • Short circuit monitoring
  • 2 safety outputs (semiconductor outputs)
  • Up to category 4/PL e according to EN ISO 13849-1
  • With 2 plug connectors M12
  • Unicode
  • Door monitoring output
  • Approach directions A, B and C (delivery state)
CTP-L1-AP-U-HA-AZ-SII-129477 (Order no. 129477)


Approach direction




Can be adjusted in 90° steps

Unicode evaluation

Each actuator is highly coded (unicode). The switch detects only taught-in actuators. Additional actuators can be taught-in. Only the last actuator taught-in is detected.

Guard locking type

CTP‑L1Guard locking actuated by spring force applied and power-ON released (closed-circuit current principle)

Connector assignment

Plug connector (view of connection side)




Conductor coloring of connecting cable

X 1.1


Operating voltage of AP electronics, 24 V DC


X 1.2


Safety output, channel 1


X 1.3

0 V UB

Operating voltage of AP electronics, 0 V


X 1.4


Safety output, channel 2


X 1.5


Not used


X 2.1


Not used


X 2.2


Door monitoring output


X 2.3


Control input of guard locking solenoid, 0 V


X 2.4


Control input of guard locking solenoid, 24 V DC


X 2.5


Not used


Dimension drawing
Dimension drawing
Wiring diagram
Wiring diagram
CTP: Transponder coded safety switch CTP

Dimension drawing

Dimension drawing
1Auxiliary release
2Locking screw

Wiring diagram

Wiring diagram

Technical data


Zulassung EACZulassung c_UL_us LISTED Class 2 or LV/C

Mechanical values and environment

Shock and vibration resistance In acc. with EN 60947-5-3
Housing material
Switch head cover Die-cast zinc
Safety switch housing Fiber glass reinforced thermoplastic
Net 0,42 kg
Ambient temperature
At UB = 24V DC -20 ... +55 °C
Degree of protection IP67/IP69/IP69K (Screwed tight plug connector/mating component)
Mechanical life 1 x 106
Installation orientation Any
Ready delay max.1 s
Switching frequency max.0,5 Hz
Connection 2 plug connectors M12, 5-pin + pin 5 not used
Approach speed max.20 m/min
Guard locking principle Closed-circuit current principle
Locking force Fmax 3900 N
Locking force FZh 3000 N (Fzh = Fmax/1.3 Depending on the actuator used)
Retention force 20 N
Extraction force 20 N
Actuating force 10 N
Overtravel 5 mm

Electrical connection ratings

Test-pulse interval min.100 ms
Test pulses max.0,3 ms (Applies for a load with C ≤ 30nF and R ≤ 20kOhm)
Operating voltage DC
UUB 24 V DC -15% ... 15% Reverse polarity protected, regulated, residual ripple < 5%, PELV
Current consumption
IUB 40 mA
IIMP 400 mA
Utilization category acc. to EN 60947-5-2
DC-13 24V 150mA (Caution: outputs must be protected with a free-wheeling diode in case of inductive loads)
Solenoid operating voltage DC
UIMP 24 V DC -15% ... +10% Reverse polarity protected, regulated, residual ripple < 5%, PELV
External (operating voltage UB) 0,25 ... 8 A
External (solenoid operating voltage IMP) 0,5 ... 8 A
Rated insulation voltage Ui 50 V
Rated impulse withstand voltage Uimp 0,5 kV
Connection rating 6 W
EMC protection requirements In acc. with EN IEC 60947-5-3
Solenoid duty cycle 100 %
Degree of contamination (external, according to EN 60947-1) 3
Safety class
EN IEC 61140 III
Switching load
According to UL 24V DC, class 2 (Alternatively see operating instructions)
Safety outputs FO1A / FO1B
Type of output 2 semiconductor outputs, p-switching, short circuit-proof
Switching current
Per safety output FO1A / FO1B 1 ... 150 mA
Output voltage
HIGH U(FO1A) / U(FO1B) UB-1,5 ... UB V DC
LOW U(FO1A) / U(FO1B) 0 ... 1 V DC
Off-state current Ir max.0,25 mA
Turn-on time max.400 ms
Discrepancy time
Both safety outputs max.10 ms In acc. with EN IEC 60947-5-3
Monitoring output OD
Type of output p-switching, short circuit-proof
Switching current 1 ... 50 mA
Output voltage 0,8xUB ... UB V DC

Work area

Repeat accuracy R
According to EN 60947-5-2 10 %


For the approval acc. to UL the following applies Operation only with UL class 2 power supply, or equivalent measures see operating instructions

Reliability values according to EN ISO 13849-1

Performance Level PL e
Category 4
PFHD 4.1 x 10 -9
Mission time 20 y



Technical support

Technical support
Do you have technical questions about our products, their possible use or applications? Our experts will be happy to help.

+1 315 701-0315