Ex 355
Features/Options
- Ex zone 1 and 21
- Metal enclosure
- Mounting and switching details to EN 50 041
- Wiring compartment
- 3 cable entries
- Actuating elements can be repositioned by 4 x 90°
- Rocking lever can be repositioned by 10° steps
- Special version only for dust Ex zone 22 available
- With gold-plated contacts available on request
- N.B.: Please state required approvals for Russia and Brazil with your order!
Product image
Technical data
| Standards | EN 60947-5-1; EN 1088; EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-31 |
|---|---|
| Design | mounting dimensions and switching points to DIN EN 50 041 |
| Enclosure | zinc die casting, enamelled |
| Switch insert | Ex 95 |
| Degree of protection | IP 67 to IEC/EN 60529 |
| Contact material | silver |
| Switching system | slow action, positive break NC contact  |
| Switching elements | change-over contact with double break Zb or 2 NC contacts, galvanically separated contact bridges |
| Connection | M3 screw clamps |
| Cable section | max. 1.5 mm² (incl. conductor ferrules) |
| Uimp | 4 kV |
| Ui | 250 V |
| Ithe | 6 A |
| Ie/Ue | 6 A/250 VAC; 0.25 A/230 VDC |
| Utilisation category | AC-15, DC-13 |
| Max. fuse rating | 6 A gL/gG D-fuse |
| Ambient temperature | –20 °C … +60 ºC |
| Mechanical life | > 1 million operations |
| Switching frequency | 1800/h |
| Repeat accuracy | ±0.1 mm |
| Contact gap | max. 2 x 3.5 mm |
| Ex marking |  II 2G Ex de IIC T6/T5 Gb, II 2D Ex tb IIIC T80°C/T95°C Db IP65 IECEx Ex de IIC T6/T5 Gb, Ex tb IIIC T80°C/T95°C Db IP65 |
| Approvals | BVS 04 ATEX E 126, IECEx BVS 07.0013   |
