Ex RC M20 KST

  • Ex zone 1 and 21
  • Cold-resistant version down to -60 °C available
  • Thermoset enclosure
  • With pre-wired cable
Notes
  • 2 mounting nuts are included in delivery
  • The actuator is not included in the delivery of the switches

Technical data

Applied standards EN 60947-5-2, EN 60079-0, EN 60079-18
Enclosure thermoset, glass-fibre reinforced, impact resistant, self-extinguishing UL 94 V-0
Degree of protection IP 67 (EN 60079-0 + IEC/EN 60529)
IP 66, IP 68, IP 69 (IEC/EN 60529)
IP 69K (ISO 20653)
Actuating magnet series M permanent magnet
Switching system reed contacts
Switching elements 1 change-over contact
Connection pre-wired cable, Silicone SIHF
Cable cross-section 3 x 0.75 mm²
Cable length 2, 5 or 10 m
Short-circuit current Ik max. 2 A
Ambient temperature –20 °C … +70 °C or –60 °C … +70 °C (depending on the variant)
Mechanical life > 1 million operations
Impact energy max. 7 J
Ex marking II 2G Ex mb IIC T6 Gb,
II 2D Ex mb IIIC T80 °C Db
IECEx Ex mb IIC T6 Gb
Ex mb IIIC T80 °C Db
Approvals DMT 01 ATEX E 058 X
IECEx BVS 07.0007 X

Ordering details

Cold-resistant down to -20 °C

Type   Material no.  
Type    Material no.   
Ex RC M20 1W KST - 5m 1239855
Type    Material no.   
Ex RC M20 1W KST - 10m 1377580

Cold-resistant down to -60 °C

Type   Material no.  
Type    Material no.   
Ex RC M20 1W KST - 2m -60°C 1445629
Type    Material no.   
Ex RC M20 1W KST - 5m -60°C 1445631
Type    Material no.   
Ex RC M20 1W KST - 10m -60°C 1445633

Actuators

Type   Material no.  
Type    Material no.   
M 20 U 1033963
Type   Material no.  
Type    Material no.   
M 50 NU 1033965
Type   Material no.  
Type    Material no.   
M 100 NU 1033966
Type   Material no.  
Type    Material no.   
M 200 NU 1033967
Type   Material no.  
Type    Material no.   
M 200 UB 1033975
Type   Material no.  
Type    Material no.   
M 300 NU 1033968
Type   Material no.  
Type    Material no.   
M 400 NU 1033970
Type   Material no.  
Type    Material no.   
M 400 UB 1033982
Type   Material no.  
Type    Material no.   
M 100 N 1042609
Type   Material no.  
Type    Material no.   
M 200 N 1042610
Type   Material no.  
Type    Material no.   
M 300 N 1042617
Type   Material no.  
Type    Material no.   
M 500 1042611
Type   Material no.  
Type    Material no.   
M 700 N 1042612
Type   Material no.  
Type    Material no.   
M 100 S 1042615
Type   Material no.  
Type    Material no.   
M 200 S 1042616
Type   Material no.  
Type    Material no.   
M 300 S 1042618
Type   Material no.  
Type    Material no.   
M 30 Niro 1189024
Type   Material no.  
Type    Material no.   
Disc magnet 15 x 4 mm 1452248
Type   Material no.  
Type    Material no.   
Disc magnet 23 x 4 mm 1452242