- ATEX version
- Suitable for usage in zone 2 and 22 (gases and dusts)
- Auxiliary release on the front
- With door monitoring contact
Euchner STA3A-2131A024MF-EX Electromechanical safety switches according to ATEX directive
Description
Additional information
| Brand |
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Specification
Approach direction
Horizontal and vertical
Can be adjusted in 90° steps
Solenoid operating voltage
Switching element
Auxiliary releaseIs 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
Other
Reliability values according to EN ISO 13849-1
In combination with Actuator BETAETIGER-S-G-SN-C2115Mechanical values and environment
- AC/DC 24 V +10%, -15%
| STA3 | Closed-circuit current principle, guard locking by spring force. Release by applying voltage to the guard locking solenoid. |
| 2131 | Slow-action switching contact 2 NC + 1 NO + 1 NC (door monitoring contact) |
| Housing material | Die-cast alloy |
| Weight | |
| Net | 0,6 kg |
| Ambient temperature | -20 ... 75 °C |
| Degree of protection | IP67 |
| Mechanical life | 1 x 106 |
| Contact material | Silver alloy, gold flashed |
| Switching principle | Slow-action switching contact |
| Installation orientation | Any |
| Number of door position NC contacts | 1 |
| Number of guard lock monitoring positively driven contacts | 2 |
| Number of guard lock monitoring NO contacts | 1 |
| Connection | |
| 3 x | Cable gland M20 x 1.5 |
| Clamping range for cable | 6,5 ... 12 mm |
| Approach speed | |
| max. | 20 m/min |
| Actuation frequency | 1200 1/h |
| Guard locking principle | Closed-circuit current principle |
| Locking force Fmax | 3000 N |
| Locking force FZh | 2300 N |
| Retention force | 20 N |
| Extraction force | 30 N |
| Actuating force | 35 N |
| Insertion depth | min.24,5 mm |
| Thermal rated current Ith | 4 A |
| Utilization category according to EN 60947-5-1 | |
| AC-15 | 4A 50V |
| DC-13 | 4A 24V |
| Solenoid operating voltage | |
| AC/DC | 24 V -15% ... +10% |
| Short circuit protection according to IEC 60269-1 | |
| (Fuse) | 4A gG |
| Rated insulation voltage Ui | 50 V |
| Rated impulse withstand voltage Uimp | 2,5 kV |
| Switching voltage | |
| Min. at 10mA | 12 V |
| Switching current | |
| Min. at 24V | 1 mA |
| Power consumption | 8 W |
| Solenoid duty cycle | 100 % |
| Connection cross-section | 0,34 ... 1,5 mm? |
| Explosion protection | |
| incl. cable gland | II3G Ex nR IIB T4 Gc X /II3D Ex tc IIIC T110°C Dc X |
| Control of the guard locking | |
| Category | Depending on external control of guard locking |
| Performance Level | Depending on external control of guard locking |
| PFHD | Depending on external control of guard locking |
| Monitoring of guard locking and the safety guard position | |
| B10D | 11,5 x 106 |
| Overtravel | 5 mm |
