ABB RELION 620 Series Technical Manual page 919

1MAC504801-IB E
620 series ANSI
Technical Manual
Table 653: Lens sensor and optical fibre for arc flash detector
Description
Fibre-optic cable including lens
Normal service temperature range of the lens
Maximum service temperature range of the lens,
max. 1 h
Minimum permissible bending radius of the
connection fibre
Table 654: Degree of protection of flush-mounted protection relay
Description
Front side
Table 655: Environmental conditions
Description
Continuous operating temperature range
Short-term operating temperature range
Relative humidity
Atmospheric pressure
Altitude
Transport and storage temperature range
1) Degradation in MTBF and LHMI performance outside the temperature range of -25ºC to +55ºC.
2) For protection relays with an LC communication interface, the maximum operating temperature is +70ºC.
Technical data
Value
1.5 m, 3.0 m or 5.0 m
-40...+100°C
+140°C
3.94 inches (100 mm)
Value
IP 54
Value
-25ºC...+55ºC
1)2)
-40ºC...+85ºC (< 16h)
< 93%, non-condensing
12.47...15.37 psi (86...106 kPa)
Up to 6561.66 feet (2000 m)
-40ºC...+85ºC
Section 15
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