Ex RC Si 56

  • Ex zone 1 and 21
  • Thermoplastic enclosure
  • Long life
  • Reed contacts, coded
  • Actuation from front
  • Switching distance up to 6 mm
  • With pre-wired cable
  • Special version only for gas Ex zone 2 and dust Ex zone 22 available
  • Maritime certification to DNV GL available on request
  • N.B.: Please state required international approvals with your order!
Note
  • The actuator is not included in the delivery of the switches

Technical data

Applied standardsEN ISO 13849-1; EN 60947-5-3;
EN ISO 14119; EN 60079-0,
EN 60079-18
Enclosureglass-fibre reinforced, shock-proof thermoplastic, self-extinguishing UL 94 V-0
Actuating magnetEx MC 56 or Ex MC 56-3
Sensor typetype 4 interlocking device
Coding levellow coding
Degree of protectionIP 67 to IEC/EN 60529
Switching systemreed contacts
Switching elements1 NC/1 NO contact or 2 NC contacts
ConnectionPre-wired cable 4 x AWG 24 UL
Cable cross-section4 x 0.22 mm²
Cable length2, 5 or 10 m, max. 15 m
 
Safety-relevant data:
EN ISO 13849-1Performance Level PL e
Category4
B10d (10 % load)20 million
TMmax. 20 years
MTTFd> 100 years
DC/DCavg> 99 %
 
Switching voltagemax. 30 VDC
Rated operating current/voltage Ie/Uemax. 125 mA, with LED: 20 mA / 24 VDC
Voltage drop at Ie2.5 V, with LED: 3 V
Switching frequencymax. 5 Hz
Switching distancessn 6 mm, sao 4 mm, sar 30 mm
Repeatability± 0.5 mm
Hysteresisapprox. 24 mm
Degree of pollution3
Safety classII
Ambient temperatureT6: –20 °C … +70 °C,
T5: –20 °C … +85 °C
Mechanical life> 10 million operations
Impact energymax. 7 J
Ex marking II 2G Ex mb IIC T6/T5 Gb
II 2D Ex mb IIIC T80 °C/T95 °C Db IP67
IECEx Ex mb IIC T6/T5 Gb
Ex mb IIIC T80 °C/ T95 °C Db IP67
ApprovalsPTB 08 ATEX 2027 X
IECEx PTB 08.0042 X


on request
NoteThe safety-related data are only valid in combination with a safety module, e.g. SRM 21 RT2 (mat. no. 1179203).

Stock types

The new steute product and warehouse structure

Reed contacts, coded
1 NC/1 NO contact

Reed contacts, coded
2 NC contacts

Ordering details

Reed contacts, coded

1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex RC Si 56 1Ö/1S - 2m 1189255
Type    Material no.   
Ex RC Si 56 1Ö/1S - 5m stock type Standard versions, in stock or available at short notice 1184598
Type    Material no.   
Ex RC Si 56 1Ö/1S - 10m 1185923
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 - 2m 1189265
Type    Material no.   
Ex RC Si 56 1Ö/1S - LED - 5m 1189271
Type    Material no.   
Ex RC Si 56 1Ö/1S - LED - 10m 1190301
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 - 2m 1189262
Type    Material no.   
Ex RC Si 56 2Ö - 5m stock type Standard versions, in stock or available at short notice 1184620
Type    Material no.   
Ex RC Si 56 2Ö - 10m stock type Standard versions, in stock or available at short notice 1184434
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 with LED lamp

Type   Material no.  
Type    Material no.   
Ex RC Si 56 2Ö - LED - 2m 1189273
Type    Material no.   
Ex RC Si 56 2Ö - LED - 5m 1185181
Type    Material no.   
Ex RC Si 56 2Ö - LED - 10m 1187207
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