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Ex 355 4VSR
Technical data
| Standards | EN 60947-5-1; EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-31; EN ISO 13849-1 |
|---|---|
| Enclosure | zinc die-cast, enamel finish |
| Switch insert | Ex 95 |
| Degree of protection | IP 67 to IEC/EN 60529 |
| Contact material | silver |
| Switching system | slow action, positive break NC contacts  |
| Switching elements | 1 NC/1 NO contact or 2 NC contacts, type Zb |
| Connection | screw connection terminals |
| Cable cross-section | max. 1.5 mm² (incl. conductor ferrules) |
| Cable entry | 3 x M20 x 1.5 for cable section 5 … 9 mm |
| B10d (10 % Load) | 2 million |
| TM | max. 20 years |
| 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 gG/gN fuse |
| Ambient temperature | T6: –20 °C … +40 °C; T5: –20 °C … +60 °C |
| Mechanical life | > 1 million operations |
| Operation cycles | 1800/h |
| Repeat accuracy of switching points | ± 0.1 mm |
| Contact opening | max. 2 x 3.5 mm |
| Impact energy | max. 7 J |
| Ex marking |  II 2G Ex db e IIC T6/T5 Gb, II 2D Ex tb IIICT80 °C/T95 °C Db IECEx Ex db e IIC T6/T5 Gb, Ex tb IIIC T80 °C/T95 °C Db |
| Approvals | BVS 04 ATEX E 126 IECEx BVS 07.0013 |
| Ordering details |
 |
Slow action
1 NC/1 NO contact
| Type | Material no. | |
| Ex 355 4VSR 1Ö/1S | 1048057 |
Slow action
2 NC contacts
| Type | Material no. | |
| Ex 355 4VSR 2Ö | 1180267 |
Slow action
1 NC/1 NO contact with overlapping
| Type | Material no. | |
| Ex 355 4VSR UE | on request Produced to order. |