Ex ES 98 ST-3G/D

  • Ex zone 2 and 22
  • Metal enclosure
  • Design to EN 50041
  • Wiring compartment
  • Actuator head can be repositioned in factory by 4 x 90°
Note
  • The actuator is not included in the delivery of the switches

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-1, EN 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 aluminium die-cast, powder-coated, signal yellow, similar to RAL 1003
Actuator stainless steel 1.4301
Sealing silicone
Switch type type 2
Coding level low coding
Degree of protection IP 67 to IEC/EN 60529
B10d (10 % load) 2 million
TM max. 20 years
Contact material silver
Switching system slow action, positive break NC contacts
Switching elements 1 NC/1 NO contact or 2 NC contacts, type Zb
Connection screw connection terminals
Cable cross-section min. 0.2 mm² / AWG 24, max. 1.5 mm² / AWG 16
Cable entry 1 x M20 x 1.5 (incl. 1 cable gland)
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 II 3G Ex dc ec IIC T6/T5 Gc,
II 3D Ex tc IIIC T80 °C/T95 °C Dc

Ordering details

Slow action, 1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex ES 98 ST-11-3G/D 1454699
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Slow action, 2 NC contacts

Type   Material no.  
Type    Material no.   
Ex ES 98 ST-02-3G/D 1454701
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Actuators

Straight actuators

Type   Material no.  
Type    Material no.   
Straight actuator ST 98/99-B1 stock type Standard versions, in stock or available at short notice 1451618
Type    Material no.   
Straight actuator ST 98/99-B1 with rubber stock type Standard versions, in stock or available at short notice 1451736

Angled actuators

Type   Material no.  
Type    Material no.   
Angled actuator ST 98/99-B5 stock type Standard versions, in stock or available at short notice 1451863

Flexible actuators

Type   Material no.  
Type    Material no.   
Flexible actuator ST 98/99-B6 stock type Standard versions, in stock or available at short notice 1451865

Accessories

Lockout tag SZ 16/335
  • To prevent inadvertent closing, e. g. during maintenance by preventing actuation of the switch
Slot sealing plug AZ 355
  • For protection against the ingress of coarse dirt
  • Quantity required: 3 per switch