ORDER NO. 111684
| Order number | 111684 |
| Item designation | CET4-AR-CRA-CH-50X-SG-111684 |
| Gross weight | 1,267kg |
| Customs tariff number | 85365019 |
Non-contact safety switch CET-AR-…, M12
- Safety switch with guard locking and integrated evaluation electronics
- Locking force up to 6,500 N
- Up to 20 switches in series
- Short circuit monitoring
- 2 safety outputs (semiconductor outputs)
- Category 4 / PL e according to EN ISO 13849-1
- With 2 plug connectors M12
- Multicode
- Door monitoring output
- Indication of the door position by LED
- Approach direction A (delivery state)
Approach direction
Horizontal
Can be adjusted in 90° steps
Safety switch
The device may be operated only in conjunction with the actuator CET-A-….
Important: The actuator must be ordered separately.
Multicode evaluation unit
Every suitable actuator is detected by the switch.
Solenoid operating voltage
- DC 24 V +10%, -15%
Guard locking type
| CET4 | Open-circuit current principle, guard locking by solenoid force. Activation of guard locking by applying voltage to the guard locking solenoid. The door position is also monitored. The door monitoring output OUT D is set to HIGH as soon as the actuator is above the extended plunger (state: door closed, guard locking not active). OUT output D also remains set when guard locking is active. |
LED function display
| State LED | Status LED |
| DIA LED | Diagnostics LED |
| LED 1 rd | freely configurable |
| LED 2 gn | illuminates when door is closed |
Additional connections
| OUT | Monitoring output (semiconductor) |
| OUT D | Door monitoring output |
| RST | Reset input |
Category according to EN ISO 13849-1
Due to two redundantly designed semiconductor outputs (safety outputs) with internal monitoring suitable for:
- Category 4 / PL e according to EN ISO 13849-1
- The stated safety characteristics apply to any installation orientations of the safety switch.
Important: To achieve the stated category in accordance with EN ISO 13849-1, both safety outputs (OA and OB) must be evaluated.
Work area
| Repeat accuracy R | |
| according to EN 60947-5-2 | 10 % |
Electrical connection ratings
| Power consumption | |
| Solenoid | 11 W |
| Connecting cable | 30V DC, 2A |
| Current consumption | |
| IB | 80 mA |
| ICM | 450 mA |
| Fusing | |
| external (solenoid operating voltage UCM) | 0.5 … 8 A |
| external (operating voltage UB) | 0.25 … 8 A |
| Operating voltage DC | |
| UB | 24 V DC -15% … +15% reverse polarity protected, regulated, residual ripple < 5%, PELV |
| LED | 24 V DC -15% V DC … +10% V DC |
| EMC protection requirements | according to EN IEC 60947-5-3 |
| Utilization category | |
| DC-13 | 24V 200mA |
| Solenoid operating voltage DC | |
| UCM | 24 V DC -15% … +10% reverse polarity protected, regulated, residual ripple < 5%, PELV |
| Solenoid duty cycle | 100 % |
| Switching load | |
| according to UL | 24V DC, Class 2 |
| Safety class | |
| EN IEC 61140 | III |
| Test pulses | max. 1 ms |
| Degree of contamination (external, according to EN 60947-1) | 3 |
| Monitoring output OUT D | |
| Output type | p-switching, short circuit-proof |
| Output voltage | |
| OUT D | 0.8xUB … UB V DC |
| Switching current | |
| OUT D | 1 … 50 mA |
| Switching delay from state change | max. 700 ms |
| Monitoring output OUT | |
| Output type | p-switching, short circuit-proof |
| Output voltage | |
| OUT | 0.8xUB … UB V DC |
| Switching current | |
| OUT | 1 … 50 mA |
| Switching delay from state change | max. 400 ms |
| Safety outputs OA / OB | |
| Output type | 2 semiconductor outputs, p-switching, short circuit-proof |
| Discrepancy time | |
| both safety outputs | max. 10 ms |
| Output voltage | |
| LOW U(OA,OB) | 0 … 1 V DC |
| HIGH U(OA,OB) | UB-1.5V … UB V DC |
| Turn-on time | 400 ms |
| Switching current | |
| per safety output OA / OB | 1 … 200 mA |
| Off-state current Ir | max. 0.25 mA |
| Risk time according to EN 60947-5-3 | |
| Single device | max. 400 ms |
| Risk time according to EN 60947-5-3, extension for each additional device | max. 5 ms |
Mechanical values and environment
| Approach speed | max. 20 m/min |
| Connection | 2 plug connectors M12, 5- and 8-pin |
| Degree of protection | IP67 |
| Ready delay | 10 s |
| Material | |
| Safety switch housing | Die-cast aluminum |
| Ramp | stainless steel |
| Mechanical life | 2 x 10⁶ |
| Installation orientation | any |
| Switching frequency | max. 0.5 Hz |
| Degree of freedom X | ±5 mm |
| Degree of freedom Y | ±5 mm |
| Degree of freedom Z | ±4 mm |
| Shock and vibration resistance | according to EN IEC 60947-5-3 |
| Ambient temperature | |
| at UB = 24V DC | -20 … +55 °C |
| Locking force Fmax | 6500 N |
| Locking force FZh | 5000 N |
| Guard locking principle | Open-circuit current principle |
Reliability values acc. to EN ISO 13849-1
| Mission time | 20 y |
| Monitoring of guard locking and the guard position | |
| Category | |
| Any installation orientation | 4 |
| Performance Level | PL e |
| PFHD | |
| Any installation orientation | 3.1 x 10-9 |
Miscellaneous
| The following applies to the approval according to UL | Operation only with UL Class 2 power supply or equivalent measures; see operating instructions |
