This safety switch is designed for door monitoring applications on industrial machinery and guarding systems. It detects the position of a guard door and provides a contact signal used within a safety circuit to prevent hazardous machine operation while the door is open. Typical use is on panel or machine access points where door status must be monitored as part of the overall safety automation scheme.
| Solenoid operating voltage | AC/DC 24 V +10%, -15% |
| Guard locking type | Closed-circuit current principle, guard locking by spring force |
| Switching element | 4121 Slow-action switching contact 2 NC + 1 NC / 1 NO (door monitoring contact) |
| Power consumption | 8 W |
| Connection cross section | 0.34 ... 1.5 mm² |
| Rated insulation voltage Ui | 250 V |
| Rated impulse withstand voltage Uimp | 2.5 kV |
| Utilization category DC-13 AC-15 | 4 A 24 V / 4 A 230 V |
| Solenoid duty cycle | 100 % |
| min. switching voltage at 10 mA | 12 V |
| Switching current min. at 24 V | 1 mA |
| Thermal rated current Ith | 4 A |
| Approach speed | max. 20 m/min |
| Connection type | 3 x M20 x 1.5 |
| Number of door position NC contacts | 1 |
| Number of door position NO contacts | 1 |
| Extraction force | 20 N |
| Actuation frequency | max. 1200 1/h |
| Actuating force | 10 N |
| Installation orientation | any |
| Mechanical life | 1 x 10⁶ |
| Retention force | 10 N |
| Switching principle | Slow-action switching contact |
| Degree of protection | IP67 |
| Ambient temperature | -20 ... +55 °C |
| Housing material | Reinforced thermoplastic |
| Contact material | Silver alloy, gold flashed |
| Locking force Fmax | 1300 N |
| Locking force FZh | 1000 N |
| Guard locking principle | Closed-circuit current principle |