ORDER NO. 096939
| Order number | 096939 |
| Item designation | STA4A-2131A024M |
| Gross weight | 0,653kg |
| Customs tariff number | 85365019 |
Safety switch STA with door monitoring contact
- Auxiliary release on the front
- With door monitoring contact
Approach direction
Horizontal and vertical
Can be adjusted in 90° steps
Solenoid operating voltage
- AC/DC 24 V +10%, -15%
Guard locking type
| STA4 | Open-circuit current principle, guard locking by applying voltage to the guard locking solenoid. Release by spring force. |
Switching element
| 2131 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) |
Auxiliary release
This is used for releasing the guard locking with the aid of a tool. To protect against tampering, the auxiliary release is sealed with sealing lacquer.
Electrical connection ratings
| 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 |
| Short circuit protection according to IEC 60269-1 | 4A gG |
| Switching current | |
| min. at 24 V | 1 mA |
| Switching voltage | |
| min. at 10 mA | 12 V |
| Utilization category | |
| DC-13 | 4A 24V |
| AC-15 | 4A 230V |
| Solenoid operating voltage | |
| AC/DC | 24 V -15% … +10% |
| Solenoid duty cycle | 100 % |
| rated thermal current Ith | 4 A |
Mechanical values and environment
| Approach direction | A |
| Approach speed | max. 20 m/min |
| Number of door position NC contacts | 1 |
| Number of guard lock monitoring NO contacts | 1 |
| Number of guard lock monitoring positively driven contacts | 2 |
| Connection | |
| 3 x | M20 x 1.5 |
| Degree of protection | IP67 |
| Extraction force | 30 N |
| Material | |
| Housing | Alloy – die-cast |
| Contact | Silver alloy, gold flashed |
| Actuation frequency | max. 1200 1/h |
| Actuating force | 35 N |
| Mechanical life | 1 x 10⁶ |
| Installation orientation | any |
| Insertion depth | 24.5 mm |
| Switching principle | Slow-action switching contact |
| Retention force | 20 N |
| Ambient temperature | -20 … +80 °C |
| Locking force Fmax | 3000 N |
| Locking force FZh | 2300 N |
| Guard locking principle | Open-circuit current principle |
Reliability values acc. to EN ISO 13849-1
| Monitoring of guard locking and the guard position | |
| B10D | 11.5 x 10⁶ |
In combination with actuator ACTUATOR-S-GT-SN
| Overtravel | 5 mm |
