Ex safety sensor
Ex RC Si 56 - 3G/D
Ex zone 2 and 22
Thermoplastic enclosure with cable
Long life
Reed contacts, coded
Actuation from front
The actuator is not included in the delivery of the switches.
Technical data
General technical data
Applied standards
EN ISO 13849-1, EN 60947-5-3, EN ISO 14119, EN IEC 60079-0, EN 60079-18
Enclosure
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Target object / Actuator
Ex MC 56, Ex MC 56-3
Sensor type
type 4 interlocking device
Coding level
low coding
Degree of protection
IP67 (IEC/EN 60529)
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
switching contacts: 2.5 V
LED: 3 V
Assured switching distance »OFF« sar
30 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
L II 3G Ex mc IIC T6/T5 Gc X,
L II 3D Ex mc IIIC T80°C/T95°C Dc
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).
