Ex safety sensor
Ex HS Si 4 - 3G/D
Ex zone 2 and 22
Thermoplastic enclosure with cable
Hall elements, coded
Actuation from front
The actuator is not included in the delivery of the switches.
Technical data
General technical data
Applied standards
EN IEC 60079-0, EN 60079-18, EN 60947-5-2, EN 60947-5-3, EN ISO 14119, EN ISO 13849-1, EN 62061
Enclosure
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Target object / Actuator
Ex MC 4
Sensor type
type 4 interlocking device
Coding level
low coding
Degree of protection
IP67 (IEC/EN 60529)
Switching system
Hall sensor, 2 galvanically separated channels, semiconductor
Connection
cable 6 x AWG 26
Rated operating voltage Ue
24 VDC
Rated operating voltage range UB
10 … 30 VDC
Rated operating current Ie
max. 40 mA per channel
Utilisation category
DC-12
No-load supply current I0
max. 6 mA per channel
Voltage drop at Ie
max. 2.5 V
Switch-on/switch-off time
< 1 ms
Short-circuit protection
< 50 mA internal reversible fuse
Switching frequency
max. 100 Hz
Safety class
II
Degree of pollution
3
Ambient temperature
–20 °C … +60 °C
Mechanical life
> 10 million operations
Rated switching distance sn
7 mm
Assured switching distance »ON« sao
6 mm
Assured switching distance »OFF« sar
20 mm
Repeatability
≤ 5 %
Impact energy
max. 7 J
Ex marking
L II 3G Ex mc IIC T6 Gc X,
L II 3D Ex mc IIIC T80°C Dc
Switching elements
1 NC/1 NO contact or 2 NC contacts
Safety-relevant data
EN ISO 13849-1
Performance Level PL e
Category
4
TM
max. 20 years
MTTFd
> 100 years
DC/DCavg
> 99 %
EN 62061
SIL CL 3
PFHd
≥ 2.47 x 10-8 1/h
Note
The safety-related data are only valid in combination with a safety module, e.g. SRM 21 RT2 (mat. no. 1179203).
