Ex RC Si M30 1Ö/1S-B IP69-NIRO 1m

Ex safety sensor
Material number: 1186818
(Material number old: 23003105)
  • Ex zone 1 and 21
  • Stainless steel enclosure
  • With mounting thread M16 x 1.5 for cable protection system
  • Reed contacts, coded
  • Actuation from front
  • Switching distance up to 10 mm
  • Attention: Please state required international approvals with your order!
  • 2 mounting nuts are included in delivery
  • The actuator is not included in the delivery of the switches

Technical data

Applied standards EN 60947-5-1, EN 60947-5-3, EN 60079-0, EN 60079-18, EN ISO 13849-1, EN ISO 14119
Enclosure stainless steel 1.4539
Sensor type type 4 interlocking device
Coding level low coding
Tightening torque mounting nut: max. 75 Nm
Degree of protection IP 69 (IEC/EN 60529) / IP 69K (ISO 20653)
Safety-relevant data:
EN ISO 13849-1 Performance Level PL e
Category 4
B10d (10 % load) 20 million
TM max. 20 years
MTTFd > 100 years
DC/DCavg > 99 %
hop 8 h/day
dop 220 days/year
tzyklus 20 s
Switching system reed contacts
Switching elements 1 NC/1 NO contact
Connection cable H05VV5-F 5G
Cable cross-section 5 x 0.5 mm²
Cable length 1 m
Switching voltage max. 30 VAC/DC
Rated operating current/voltage Ie/Ue max. 125 mA / 24 VDC
Switching capacity max. 3.75 W
Voltage drop at Ie max. 2.5 V
Short-circuit current Ik max. 750 mA for 50 ms
Operation cycles max. 1600/h
Switching distances sn 10 mm, sao 8 mm, sar 30 mm
Repeatability ± 0.5 mm
Hysteresis approx. 14 mm
Temperature class T6
Ambient temperature –20 °C … +70 °C
Mechanical life > 10 million operations
Impact energy max. 7 J
Ex marking II 2G Ex mb IIC T6 Gb,
II 2D Ex mb IIIC T80°C Db IP67
IECEx Ex mb IIC T6 Gb,
Ex mb IIIC T80°C Db IP67
Approvals PTB 05 ATEX 2024 X
IECEx PTB 07.0008 X
Note The safety-related data are only valid in combination with a safety module.
Weight 290 g

Contact diagram

Axial misalignment


Type   Material no.  
Type    Material no.   
Actuating magnet coded Ex MC 30 stock type Standard versions, in stock or available at short notice 1180333
Type    Material no.   
Actuating magnet coded Ex MC 30 Niro stock type Standard versions, in stock or available at short notice 1181818


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
Ex cable protection adapter M16x1.5 NW12
  • For series Ex RC M20-B, Ex RC 2580-B and Ex RC Si M30-B with mounting thread M16 x 1.5
  • For indoor and outdoor application
  • Prevents electrostatic charging
  • Corrosion-resistant
  • With internal thread M16x1,5
  • Compatible with cable protection conduit NM 12 (1183844)
Cable protection conduit flexible NW12
  • Made of load discharging polyamide materials (PA12) for use in explosion endangered zones 1/2 (gas) and 21/22 (dust)
  • For indoor and outdoor application
  • Compatible with all cable protection adapters with NW12
  • Free from halogens and cadmium
  • UV resistant
  • Ordering unit: per meter