Safety switch CET-AP
Benefits for you
- Safety switch with guard locking and safe guard lock monitoring
- Integrated CES-AP electronics
- A special evaluation unit is not required
- Safety category 4 and PL e according to EN ISO 13849-1 in any installation orientation, head downward/upward/horizontal
- Two safe semiconductor outputs and monitoring output OUT
- Safety outputs with pulsing
- Input (optional) for the connection of feedback loop and start button
Design and functionality
The CET-AP-… forms a complete safety solution (PL e according to EN ISO 13849-1). Depending on the version a start button and feedback loop can be connected. As a result, the CET-AP-… includes everything that is necessary to secure a guard. It could not be easier!

Connection to safe control systems or safety relays
Do not use a control system or safety relay with pulsing for monitoring short circuits or switch off the pulsing function in these devices. The switch generates its own clock signals on the output lines OA/OB. A downstream device must tolerate these test pulses, which may have a length of up to 1 ms.
The inputs on the downstream device must be suitable for positive-switching devices (pnp outputs), as the two outputs on the safety switch deliver a level of +24 V in the switched-on state.
Connection to decentralized peripheral systems (e.g. ET200pro)
Series CET-AP-...-SI-... switches (2x plug connectors M12) have a special pin assignment that makes possible direct connection to decentralized peripheral systems, e.g. Siemens ET200pro.
OUT output
The semiconductor output OUT is switched if the guard is closed (actuator in the actuating range). It is not allowed to be used for safety functions. The OUT outputs on the individual switches can, however, not be polled if connected in series using a Y-distributor. Evaluation is possible only on parallel wiring to the control cabinet.
RST input
The switches in a chain in a fault state can be reset using the RST input. To do this, a voltage of 24 V is applied to the RST input for at least 3 seconds. It is not necessary to disconnect the power supply to reset a fault.
Product finder
Products (20)

CET3-AP-CRA-AH-50F-SA-124601
Non-contact safety switch CET-AP-..., M12, with escape release
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Escape release, 75 mm long
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50F-SH-C2312-119106
Non-contact safety switch CET-AP-..., with plug connector RC18 and escape release
- Read head with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- Plug connector M23 (RC18)
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Teach-in input
- Escape release, 105 mm long
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50F-SI-114073
Non-contact safety switch CET-AP-..., with escape release, for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Direct connection to decentralized peripheral systems (e.g. ET200pro)
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Indication of the door position by LED
- Escape release, 75 mm long
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50F-SI-C2312-157408
Non-contact safety switch CET-AP-..., for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Direct connection to decentralized peripheral systems (e.g. ET200pro)
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Escape release, 105 mm long
- Indication of the door position by LED
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50F-SI-C2438-124594
Non-contact safety switch CET-AP-..., with escape release, for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Connection to decentralized peripheral systems (e.g. ET200pro) via Y-distributor
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Escape release, 75 mm long
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50X-SA-122398
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50X-SA-122406
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Monitoring output DIA
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50X-SF-161524
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin, can be rotated by 360°
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50X-SI-111346
Non-contact safety switch CET-AP-..., for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Direct connection to decentralized peripheral systems (e.g. ET200pro)
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Indication of the door position by LED
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50X-SI-C2290-121367
Non-contact safety switch CET-AP-..., M12, with wire front release (bowden), for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Direct connection to decentralized peripheral systems (e.g. ET200pro)
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Indication of the door position by LED
- Wire front release (bowden), 5 m
- Approach direction A (delivery state)

CET3-AP-CRA-AH-50X-SI-C2438-124589
Non-contact safety switch CET-AP-..., for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Connection to decentralized peripheral systems (e.g. ET200pro) via Y-distributor
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)

CET3-AP-CRA-CH-50F-SA-C2312-157287
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Multicode
- Door monitoring output OUT
- Monitoring output OUT
- Indication of the door position by LED
- Escape release, 105 mm long
- Approach direction A (delivery state)

CET3-AP-CRA-CH-50X-SA-121579
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Multicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)

CET3-AP-CRA-CH-50X-SA-122409
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Multicode
- Door monitoring output
- Indication of the door position by LED
- Monitoring output DIA
- Approach direction A (delivery state)

CET4-AP-CRA-AH-50X-SA-122415
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)

CET4-AP-CRA-AH-50X-SI-112082
Non-contact safety switch CET-AP-..., for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Direct connection to decentralized peripheral systems (e.g. ET200pro)
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Indication of the door position by LED
- Approach direction A (delivery state)

CET4-AP-CRA-AH-50X-SI-C2438-126763
Non-contact safety switch CET-AP-..., for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Connection to decentralized peripheral systems (e.g. ET200pro) via Y-distributor
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Unicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)

CET4-AP-CRA-AH-50X-SI-C2509-161577
Non-contact safety switch CET-AP-..., M12, with wire front release (bowden), for connection to decentralized peripheral systems
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Connection to decentralized peripheral systems (e.g. ET200pro) via Y-distributor
- 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
- Indication of the door position by LED
- Wire front release (bowden), 3 m, automatic return
- Approach direction A (delivery state)

CET4-AP-CRA-CH-50F-SA-161178
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Multicode
- Door monitoring output
- Indication of the door position by LED
- Escape release, 75 mm long
- Approach direction A (delivery state)

CET4-AP-CRA-CH-50X-SA-122413
Non-contact safety switch CET-AP-..., M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 1 plug connector M12, 8-pin
- Multicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)
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