Specifications
Leuze electronic MLC 520 EX 51
14 Specifications
14.1 General specifications
Table 14.1: Protective field data
Table 14.2: Safety-relevant technical data
Table 14.3: Explosion protection
Table 14.4: General system data
Physical resolution
[mm]
Operating range [m] Protective field height [mm]
min. max. min. max.
20 0 15 600 1500
30 0 10 600 1500
Type in accordance with IEC/EN 61496 Type 4
SIL in accordance with IEC 61508 SIL 3
SILCL in accordance with IEC/EN 62061 SILCL 3
Performance Level (PL) in accordance with EN ISO 13849-1 PL e
Category in accordance with EN ISO 13849-1 Cat. 4
Average probability of a failure to danger per hour (PFH
d
) 7.73x10
-9
1/h
Service life (T
M
) 20 years
Ex device group/category II, 3G
II, 3D
Ex-zone 2, 22
Permissible surface tempera-
ture
T<85° (T4)
Ignition protection type "nA" non-sparking, "tc" protection through housing
Marking acc. to EN 60079-0,
EN 60079-15, EN 60079-28 for
3G and EN 60079-0, EN 60079-
31 for 3D
II, 3G Ex nA op is IIB T4 Gc X
II, 3D Ex tc IIIB T85°C DC IP54, 0°C £ T
a
£ 55°C
Connection technology M12, 5-pin (transmitter)
M12, 8-pin (receiver)
Supply voltage U
v
, transmitter and receiver +24 V, 20 %, compensation necessary
at 20 ms voltage dip, min. 250 mA
(+ OSSD load)
Residual ripple of the supply voltage 5 % within the limits of U
v
Current consumption - transmitter 50 mA
Current consumption receiver 150 mA (without load)
Common value for ext. fuse in the supply line for transmitter
and receiver
2 A semi time-lag
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