Ex safety switch with separate actuator

Ex ES 98 ST-11

Article no.: 1255734Old article no.: 9100533001

Standard version
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Product features

ExSafety

  • Ex zone 1 and 21

  • Metal enclosure

  • Design to EN 50041

  • 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 IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure
aluminium die-cast, corrosion-resistant, powder-coated, anthracite grey, similar to RAL 7016
Cover
stainless steel 1.4401, powder-coated, signal yellow, similar to RAL 1003
Sealing
silicone
Switch type
type 2
Coding level
low coding
Tightening torque
screw connection terminals: 0.5 Nm
Degree of protection
IP66 (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, use copper conductors only
Cable cross-section
min. 0.75 mm² (AWG 18), 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 fuse
Ambient temperature
T6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life
> 1 million operations
Operation cycles
max. 1800/h
Impact energy
max. 7 J
Ex marking
L II 2G   Ex db eb IIC T6/T5 Gb,
L II 2D   Ex tb IIIC T80°C/T95°C Db
Approvals
DMT 01 ATEX E 178
IECEx BVS 07.0014
Japan: CML 25JPN1034
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Weight
360 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

Mounting and wiring instructions – Ex ES 98 ST

German, English, French, Italian, Portuguese

PDF3 MB 05.02.2026

Variants / Options

The following variants / options are available on request:

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

to your contact persons

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ExSafety

Ex safety switch with separate actuator

Ex ES 98 ST-11

Article no.: 1255734Old article no.: 9100533001

Standard version
contact us