Ex solenoid interlock

Ex STM 295-3G/D


  • Ex zone 2 and 22

  • Thermoplastic enclosure

  • Wiring compartment

  • Spring-to-lock or power-to-lock principle

  • Double insulated X

  • Locking force 1000 N

  • With LED

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

Technical data

Applied standards

EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-18, EN 60079-31, EN ISO 13849-1, EN ISO 14119

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
switch inserts M3 screw connection terminals: min. 0.6 Nm
solenoid M3.5 screw connection terminals: min. 0.8 Nm

Degree of protection

IP67 (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

1 NC/1 NO contact + 1 NC/1 NO contact or 2 NC + 1 NC/1 NO contact or 2 NC/1 NO contact + 2 NC/1 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

<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 3G Ex dc ec mc IIC T4 Gc
L II 3D Ex tc IIIC T100°C Dc

Downloads

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Mounting and wiring instructions – Ex STM 295-3G/D

German, English, French, Italian, Portuguese

PDF 4 MB 19.09.2023
Please go to the relevant product pages for additional downloads.
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