Ex solenoid interlock

Ex STM 295 2Ö1S/1Ö1S-A

Article no.: 1266854

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Product features

newExSafety
  • Ex zone 1 and 21

  • Thermoplastic enclosure

  • Power-to-lock principle

  • Locking force 1000 N

  • Wiring compartment

  • Attention: Please state required international approvals with your order!

Notes

  • 1 Ex"e" cable gland M20x1.5 included in delivery.

  • The actuator is not included in the delivery of the switches.

Technical data

Applied standards
EN 60947-5-1, EN ISO 14119, EN IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-18, EN 60079-31, EN ISO 13849-1
Enclosure
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Switch type
type 2
Coding level
low coding
Tightening torque
cover screws: 0.5 … 0.6 Nm
enclosure mounting screws: 1 … 1.3 Nm
switch inserts M3 screw connection terminals: min. 0.6 Nm
solenoid M3.5 screw connection terminals: min. 0.8 Nm
Degree of protection
IP64 (IEC/EN 60529)
B10d (10 % load)
1 million
TM
max. 20 years
Contact material
silver
Switching system
slow action, positive break NC contacts A
Switching elements
2 NC/1 NO contact + 1 NC/1 NO contact, type Zb
Connection
screw connection terminals
Cable cross-section
solenoid: 0.2 … 1.5 mm2 (AWG 24 … 16)
switch inserts: 0.75 … 1.5 mm2 (AWG 18 … 16)
Cable entry
2 x M20 x 1.5; use only Ex approved and certified cable glands with min. degree of protection IP64 and admissible ambient temperature range of -20 °C … +95 °C
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: 1.5 A/250 VAC; 0.2 A/230 VDC;
direct-current solenoid: 0.08 A / 24 VDC +10 %/–15 %
Short-circuit protection
1.5 A gG fuse;
direct-current solenoid: 2 A (slow blow)
Safety class
II
Power consumption
<2.5 W (continuous operation), max. 47 W (for 250 ms)
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
L II 2G   Ex db eb mb IIC T4 Gb,
L II 2D   Ex tb IIIC T100°C Db
Approvals
BVS 10 ATEX E 053 X
IECEx BVS 11.0030X
fdÜa

Dimensional drawing

Further drawings

Contact diagram

P actuated
Q not actuated
Æ monitoring of the guard-lock to EN ISO 14119

Downloads

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Mounting and wiring instructions – Ex STM 295

German, English, French, Italian, Portuguese

PDF2 MB 11.05.2026
Mounting and wiring instructions – Ex STM 295 (de/en/ja)

German, English, Japanese

PDF2 MB 13.11.2025

Variants / Options

The following variants / options are available on request:

  • Actuator turned by 90°

to your contact persons
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Ex STM 295 2Ö1S/1Ö1S-A

Article no.: 1266854

contact us