Approach direction
Horizontal and vertical
Can be adjusted in 90° steps
Switching element
| 638 | Slow-action switching contact 2 NC |
Dimension drawing
638
Electro-mechanical safety switches
Dimension drawing638
Technical dataApprovals
Mechanical values and environment
| Housing material | Reinforced thermoplastic |
| Weight | |
| Net | 0,5 kg |
| Ambient temperature | -20 … 80 °C |
| Degree of protection | IP67 |
| Mechanical life | 1 x 106 |
| Contact material | Silver alloy, gold flashed |
| Switching principle | Slow-action switching contact |
| Mounting method | Mounting according to EN50047 |
| Installation orientation | Any |
| Number of door position positively driven contacts | 2 |
| Connection | |
| 1 x | Plug connector SM4 |
| Approach speed | |
| max. | 20 m/min |
| Actuation frequency | 7000 1/h |
| Retention force | 2 N |
| Extraction force | 15 N |
| Actuating force | 5 N |
| Insertion depth | |
| Vertical | 29,5 mm |
| Horizontal | 28 mm |
Electrical connection ratings
| Thermal rated current Ith | 1,5 A |
| Utilization category according to EN 60947-5-1 | |
| AC-15 | 1.5A 230V |
| DC-13 | 1.5A 24V |
| Short circuit protection according to IEC 60269-1 | |
| (Fuse) | 2A gG |
| Rated insulation voltage Ui | 250 V |
| Rated impulse withstand voltage Uimp | 1,5 kV |
| Switching voltage | |
| Min. at 10mA | 24 V |
| Switching current | |
| Min. at 24V | 30 mA |
Reliability values according to EN ISO 13849-1
| Monitoring of the safety guard position | |
| B10D | 3 x 106 |
In combination with Actuator BETAETIGER-P-GTMechanical values and environment
| Overtravel A B C D E | |
| Horizontal | 2 mm |
| Overtravel K L M N | |
| Vertical | 1,5 mm |
In combination with Actuator BETAETIGER-P-GNTMechanical values and environment
| Overtravel A B C D E | |
| Horizontal | 7 mm |
