Ex safety switch with separate actuator

Ex ES 98 ST-11-3G/D

Article no.: 1454699

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Product features

ExSafety
  • Ex zone 2 and 22

  • Metal enclosure

  • Design to EN 50041

  • Wiring compartment

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 IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure
aluminium die-cast, powder-coated, corrosion-resistant, anthracite grey, similar to RAL 7016
Cover
aluminium die-cast, powder-coated, signal yellow, similar to RAL 1003
Sealing
silicone
Switch type
type 2
Coding level
low coding
Degree of protection
IP67 (IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Contact material
silver
Switching system
slow action, positive break NC contacts A
Switching elements
1 NC/1 NO contact, type Zb
Connection
screw connection terminals
Cable cross-section
min. 0.5 mm² (AWG 20), max. 1.5 mm² (AWG 16), incl. conductor ferrules
Cable entry
1 x M20 x 1.5 (for cable glands only)
Clamping range
7 … 13 mm
Rated impulse withstand voltage Uimp
4 kV
Rated insulation voltage Ui
250 V
Conventional thermal current Ithe
6 A
Rated operating current/voltage Ie/Ue
6 A/250 VAC; 0.25 A/230 VDC
Utilisation category
AC-15; DC-13
Short-circuit protection
6 A gG/gN fuse
Ambient temperature
T6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life
> 1 million operations
Operation cycles
max. 1800/h
Repeat accuracy of switching points
± 0.1 mm
Impact energy
max. 7 J
Ex marking
L II 3G Ex dc ec IIC T6/T5 Gc X,
L II 3D Ex tc IIIC T80 °C/T95 °C Dc
Weight
320 g

Dimensional drawing

Further drawings

Contact diagram
Switching diagram

T Positive break travel/angle

Note
Inserted position of actuator = 0 in switching diagram.
The actuator is not included with the switches.

Downloads

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Mounting and wiring instructions – Ex ES 98 ST-3G/D

German, English, French, Italian, Portuguese

PDF2 MB 13.11.2025

Variants / Options

The following variants / options are available on request:

  • Actuator head can be repositioned in factory by 4 x 90°

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Ex safety switch with separate actuator

Ex ES 98 ST-11-3G/D

Article no.: 1454699

contact us