Ex RC Si 56 - 3G/D

  • Ex zone 2 and 22
  • Thermoplastic enclosure
  • Long life
  • Reed contacts, coded
  • Actuation from front
  • Switching distance up to 6 mm
Note
  • The actuator is not included in the delivery of the switches

Technical data

Applied standards EN ISO 13849-1, EN 60947-5-3, EN ISO 14119, EN 60079-0, EN 60079-18
Enclosure thermoplastic, glass-fibre reinforced, impact resistant, self-extinguishing UL 94 V-0
Defined object Ex MC 56, Ex MC 56-3
Sensor type type 4 interlocking device
Coding level low coding
Degree of protection IP 67 to IEC/EN 60529
Safety-relevant data:
EN ISO 13849-1 Performance Level PL e
Category 4
B10d (10 % load) 2 million
TM max. 20 years
MTTFd > 100 years
DC/DCavg > 99 %
Note The safety-related data are only valid in combination with a safety module, e.g. SRM 21 RT2 (mat. no. 1179203).
Switching system reed contacts
Switching elements 1 NC/1 NO contact or 2 NC contacts
Connection Pre-wired cable 4 x AWG 24 UL
Cable cross-section 4 x 0.22 mm²
Switching voltage max. 30 VDC
Rated operating current/voltage Ie/Ue max. 125 mA, with LED: 20 mA / 24 VDC
Voltage drop at Ie 2.5 V, with LED: 3 V
Switching frequency max. 5 Hz
Assured switching distance »OFF« sar  > 23 mm
Repeatability ± 0.5 mm
Hysteresis min. 23 mm
Degree of pollution 3
Safety class II
Ambient temperature T6: –20 °C … +70 °C,
T5: –20 °C … +85 °C
Mechanical life > 1 million operations
Impact energy max. 7 J
Ex marking II 3G Ex mc IIC T6/T5 Gc X,
II 3D Ex mc IIIC T80°C/T95°C Dc

Ordering details

Reed contacts, coded, 1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex RC Si 56 1Ö/1S-3G/D - 5m 1182510
Type    Material no.   
Ex RC Si 56 1Ö/1S-3G/D - 10m 1182965
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Reed contacts, coded, 1 NC/1 NO contact with LED lamp

Type   Material no.  
Type    Material no.   
Ex RC Si 56 1Ö/1S-LED-3G/D - 5m 1184827
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Reed contacts, coded, 2 NC contacts

Type   Material no.  
Type    Material no.   
Ex RC Si 56 2Ö-3G/D - 5m 1183009
Type    Material no.   
Ex RC Si 56 2Ö-3G/D - 10m 1181390
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Actuators

Type   Material no.  
Type    Material no.   
Actuating magnet coded Ex MC 56 stock type Standard versions, in stock or available at short notice 1180986
Type   Material no.  
Type    Material no.   
Actuating magnet coded Ex MC 56-3 stock type Standard versions, in stock or available at short notice 1181408

Accessories

Safety relay module SRM 21 RT2
  • Enclosure width: 22.5 mm
  • 2 NC or 1 NC/1 NO contact can be connected
  • Feedback circuit
  • 2 enabling paths
  • 1 transistor output
  • Manual or automatic reset
  • LED indicator for switching condition
  • Crossed wire monitoring
Distance plate RC Si 56
  • Material: POM (black)
Distance plate MC 56
  • Material: POM (black)