Ex safety sensor
Ex HS Si 4 - 3G/D
Ex zone 2 and 22
Thermoplastic enclosure
Hall elements, coded
Actuation from front
Switching distance up to 7 mm
With pre-wired cable
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, impact resistant, self-extinguishing UL 94 V-0
Defined 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).
