Description
Product Description
Euchner 121579 is a CET3-AP series transponder-coded safety switch with guard locking that uses RFID and a closed-circuit current principle (power to unlock). The device provides two redundant semiconductor safety outputs with internal monitoring, monitoring outputs for guard locking and door position, and an M12 8-pin plug connector. It meets Category 4 / PL e and SIL 3 safety requirements and is rated IP67 for harsh environments.
- Two redundant semiconductor safety outputs with internal monitoring; monitoring outputs for guard locking (OUT) and door position (OUT D).
- Guard locking via closed-circuit current principle (power to unlock), solenoid power 11 W, locking force up to 6500 N; head/approach adjustable in 90 steps.
- Operating electronics 24 V DC (-15%/+15%), solenoid 24 V DC (-15%/+10%), M12 8-pin connector, IP67, die-cast aluminum housing with stainless steel ramp.
Product Highlights
Transponder-coded RFID safety interlock with guard locking, Category 4 / PL e compliance, SIL 3, M12 8-pin connector, IP67.
Product Information
Standard Information
- Brand: EUCHNER
- Manufacturer Part Number: 121579
Technical Specifications
- Brand: EUCHNER
- Manufacturer Part Number: 121579
- Model / Order Code: CET3-AP-CRA-CH-50X-SA
- Product Type: Transponder-coded safety interlock switch with guard locking
- Guard Locking Principle: Closed-circuit current principle (power to unlock)
- Evaluation Type: Multicode (low coding level)
- Safety Category / Performance Level: Category 4 / PL e according to EN 13849-1
- SIL Rating: SIL 3 according to EN IEC 62061
- Safety Standards: EN 13849-1; EN IEC 62061; EN 14119; EN ISO 13849-1
- Safety Outputs: 2 semiconductor outputs (p-switching), short circuit-proof
- Monitoring Outputs: OUT (guard locking) and OUT D (door position), p-switching, short circuit-proof
- Operating Voltage (electronics): 24 V DC (-15% … +15%), reverse polarity protected
- Solenoid Operating Voltage: 24 V DC (-15% … +10%), reverse polarity protected
- Solenoid Power Consumption: 11 W
- Current Consumption (Solenoid): 450 mA
- Current Consumption (Electronics): 80 mA
- Connecting Cable Rating: 30 V DC, 2 A (for UL category CYJV/CYJV7)
- Fuse (Electronics UB): external 0.25 … 8 A
- Fuse (Solenoid UCM): external 0.5 … 8 A
- Ready Delay: 1 s
- Turn-on Time: 400 ms
- Discrepancy Time (both safety outputs): max. 10 ms
- Switching Frequency: max. 0.5 Hz
- Switching Load (UL): 24 V DC, Class 2
- Solenoid Duty Cycle: 100%
- Maximum Risk Time (EN 60947-5-3): max. 400 ms
- Degree of Protection: IP67 (inserted and screwed tight)
- Operating Temperature: -20 … 55 C
- Storage Temperature: -25 … 70 C
- Material (Ramp): Stainless steel
- Material (Housing): Die-cast aluminum
- Locking Force (F max): 6500 N
- Locking Force (Zh): 5000 N
- Degree of Contamination (External): 3 (according to EN 60947-1)
- Approach Direction: Horizontal (adjustable in 90 steps)
- Connection Type: 1 plug connector M12, 8-pin
- Installation Orientation: Any
- Degree of Freedom (X / Y / Z): 5 mm / 5 mm / 4 mm
- Mechanical Life: 2 x 10^6 operations
- Test Pulse Duration: max. 0.3 ms (C <= 30 nF and R <= 20 k)
- Gross Weight (manufacturer stated): 1.267 kg
- Solenoid Current (derived): approx. 0.46 A (based on 11 W at 24 V)
