Ex STM 295-3G/D

  • Ex zone 2 and 22
  • Thermoplastic enclosure
  • Wiring compartment
  • Spring-to-lock or power-to-lock principle
  • Double insulated
  • Locking force 1000 N
  • With LED
Note
  • The actuator is not included in the delivery of the switches

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-18, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure thermoplastic, glass-fibre reinforced, impact resistant, self-extinguishing UL 94 V-0
Switch type type 2
Coding level low coding
Tightening torque cover screws: 0.5 … 0.6 Nm
switch inserts M3 screw connection terminals: min. 0.6 Nm
solenoid M3.5 screw connection terminals: min. 0.8 Nm
Degree of protection IP 67 to IEC/EN 60529
B10d (10 % load) 1 million
TM max. 20 years
Contact material silver
Switching system slow action, positive break NC contacts
Switching elements 2 NC/2 NO, 3 NC/1 NO or 4 NC/2 NO contact, type Zb
Connection screw connection terminals
Cable cross-section min. 0.2 mm² / AWG 24, max. 1.5 mm² / AWG 16
Cable entry 2 x M20 x 1.5 (incl. 1 cable gland)
Clamping range 7 … 12 mm
Rated insulation voltage Ui 250 V
Rated impulse withstand voltage Uimp 4 kV
Utilisation category AC-15; DC-13
Rated operating current/voltage Ie/Ue enabling/signalling contacts:
3 A/250 VAC; 0.25 A/230 VDC or 1.5 A/250 VAC; 0,25 A/230 VDC;
direct-current solenoid:
0.08 A / 24 VDC +10 %/–15 % 
Short-circuit protection 3 A / 1.5 A gG/gN fuse;
direct-current solenoid: 2 A (slow blow)
Power consumption max. 47 W (0.25 s)
Operation cycles max. 1200/h
Mechanical life > 500 000 operations
Locking force Fmax 1000 N
Impact energy max. 7 J
Ambient temperature –20 °C … +55 °C
Ex marking II 3G Ex dc ec mc IIC T4 Gc
II 3D Ex tc IIIC T100°C Dc

Ordering details

Spring-to-lock principle

Type   Material no.  
Type    Material no.   
Ex STM 295 1Ö1S/1Ö1S-R-3G/D 1183008
Type    Material no.   
Ex STM 295 1Ö1S/1Ö1S-R/90°-3G/D 1184334
Type    Material no.   
Ex STM 295 2Ö1S/2Ö1S-R-3G/D 1187919
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Spring-to-lock principle, with manual release FE

Type   Material no.  
Type    Material no.   
Ex STM 295 1Ö1S/1Ö1S-R-FE-3G/D stock type Standard versions, in stock or available at short notice 1183680
Type    Material no.   
Ex STM 295 1Ö1S/1Ö1S-R/90°-FE-3G/D 1185098
Type    Material no.   
Ex STM 295 1Ö1S/2Ö-R-FE-3G/D 1312596
Type    Material no.   
Ex STM 295 2Ö/1Ö1S-R-FE-3G/D 1184175
Type    Material no.   
Ex STM 295 2Ö/1Ö1S-R/90°-FE-3G/D 1186458
Type    Material no.   
Ex STM 295 2Ö1S/2Ö1S-R-FE-3G/D stock type Standard versions, in stock or available at short notice 1407873
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Power-to-lock principle

Type   Material no.  
Type    Material no.   
Ex STM 295 1Ö1S/1Ö1S-A-3G/D 1183007
Type    Material no.   
Ex STM 295 1Ö1S/2Ö-A-3G/D 1187286
Type    Material no.   
Ex STM 295 2Ö/1Ö1S-A-3G/D 1264377
Type    Material no.   
Ex STM 295 2Ö1S/2Ö1S-A-3G/D 1398378
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Actuators

Type   Material no.  
Type    Material no.   
Straight actuator STM 295-B1 stock type Standard versions, in stock or available at short notice 1183481
Type   Material no.  
Type    Material no.   
Angled actuator STM 295-B5 stock type Standard versions, in stock or available at short notice 1183470
Type   Material no.  
Type    Material no.   
Flexible actuator STM 295-B6 stock type Standard versions, in stock or available at short notice 1435030