Ex STM 298-3G/D

  • Ex zone 2 and 22
  • Metal enclosure
  • Wiring compartment
  • Spring-to-lock or power-to-lock principle
Notes
  • 1 ATEX cable gland is included in delivery
  • The actuator is not included in the delivery of the switches

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-15, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure die-cast alloy
Switch type type 2
Coding level low coding
Degree of protection IP 67 to IEC/EN 60529
B10d (10 % load) 12 million
Mechanical life 1x106 operations
Ambient temperature –20 °C … +75 °C
Degree of pollution 3
Mounting position any
Actuating speed V max. 20 m/min
Extraction force (not locked) 30 N
Retention force 20 N
Actuating force max. 35 N
Operation cycles max. 1200/h
Switching system slow action
Contact material Silver, gold flashed
Cable entry 3 x M20 x 1.5 (incl. 1 cable gland)
Clamping range 6,5 … 12 mm
Cable cross-section 0.34 … 1.5 mm² (flexible/fixed)
Rated operating isolation voltage Ui 50 V
Rated impulse withstand voltage Uimp 2.5 kV
Conditional short-circuit current 100 A
Switching voltage min. 12 V at 10 mA
Utilisation category AC-15; DC-13
Rated operating current/voltage Ie/Ue 4 A/50 VAC; 4 A/24 VDC
Switching current min. 1 mA at 24 V
Short-circuit protection 4 A gG fuse (IEC 60269-1)
Conventional thermal current Ithe 4 A
Solenoid operating voltage Us 24 VDC (+10%/–15%)
Power consumption 8 W
Switch-on time ED 100 %
Locking force Fmax Actuator straight: 3000 N
Actuator angled: 1500 N
Actuator flexible: 3000 N
Locking force FZh (FZh = Fmax/1.3) = 2300 N
Impact energy max. 7 J
Ex marking II3G Ex nR IIB T4 Gc X
II3D Ex tc IIIC T110°C Dc X

Ordering details

Spring-to-lock principle, 1 NC + 2 NC/1 NO contacts

Type   Material no.  
Type    Material no.   
Ex STM 298 01/12 R-3G/D stock type Standard versions, in stock or available at short notice 1273831
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, 1 NC/1 NO + 2 NC contacts

Type   Material no.  
Type    Material no.   
Ex STM 298 11/02 R-3G/D stock type Standard versions, in stock or available at short notice 1331263
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, 1 NC + 2 NC/1 NO contacts

Type   Material no.  
Type    Material no.   
Ex STM 298 01/12 A-3G/D stock type Standard versions, in stock or available at short notice 1318692
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, 1 NC/1 NO + 2 NC contacts

Type   Material no.  
Type    Material no.   
Ex STM 298 11/02 A-3G/D stock type Standard versions, in stock or available at short notice 1279434
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 298-B1 stock type Standard versions, in stock or available at short notice 1266893
Type   Material no.  
Type    Material no.   
Angled actuator STM 298-B5 stock type Standard versions, in stock or available at short notice 1409510
Type   Material no.  
Type    Material no.   
Flexible actuator STM 298-B2 stock type Standard versions, in stock or available at short notice 1328236
Type   Material no.  
Type    Material no.   
Flexible actuator STM 298-B3 stock type Standard versions, in stock or available at short notice 1368126