Ex ST 61
Features/Options
- Ex zone 1 and 21
- Metal enclosure
- Double insulation
- Slow action
, change-over contact with double break - Pre-wired cable
- Long life
- High level of contact reliability with low voltage and currents
- Special version only for dust Ex zone 22 available
- N.B.: Please state required approvals for Brazil and North America with your order!
Product image
Technical data
| Standards | EN 60947-5-1; EN 1088; EN 60079-0, EN 60079-1, EN 60079-31; EN ISO 13849-1 |
|---|---|
| Enclosure | aluminium die-cast, enamelled |
| Actuator | stainless steel 1.4301 |
| Switch insert | Ex 14 |
| Degree of protection | IP 65 according to EN 60529 |
| Contact material | silver |
| Switching system | slow action, NC contact with positive break |
| Switching elements | change-over contact with double break Zb, galvanically separated contact bridges |
| Connection | pre-wired cable H05VV-F 4 x 0.75 mm2 |
| B10d(10% Load) | 2 million |
| TM | max. 20 years |
| Cable length | 3 m |
| Uimp | 4 kV |
| Ui | 250 V |
| Ithe | T6: 6 A; T5: 3 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 |
| Positive break travel | 12 mm |
| Ambient temperature | T6: –20 °C … +65 °C, T5: –20 °C … +95 °C |
| Mechanical life | > 1 million operations |
| Ex marking |  II 2G Ex d IIC T6/T5 Gb II 2D Ex tb IIICT80°C/T95°C Db IP65 IECEx Ex d IIC T5/T6 Gb Ex tb IIIC T80°C/T95°C Db IP65 |
| Approvals | PTB 03 ATEX 1070 X IECEx PTB 06.0098X (referring to the switch insert)   |
