ABB RER620, Technical Manual

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Section 13
Technical data
RER620 567
Technical Manual
Table 456: Degree of protection of flush-mounted relay
Table 457: Environmental conditions
Table 458: Environmental tests
Description Value
Front side IP 54
Back side IP 20
Description Value
Continuous operating temperature range -25ºC to +55ºC
Short-term operating temperature range
-40ºC to +85ºC (<12h)
1 , 2
1. Degradation in MTBF and LHMI performance outside the temperature range of -25ºC to +55ºC
2. For relays with an LC communication interface, the maximum operating temperature is +70ºC
Relative humidity <93%, non-condensing
Atmospheric pressure 12.47 to 15.37 psi (86 to 106 kPa)
Altitude Up to 6561.66 feet (2000 m)
Transport and storage temperature range -40ºC to +85ºC
Description Requirement Reference
Dry heat test
+85ºC 12h
1 , 2
1. For relays with an LC communication interface, the maximum operating temperature is +70
o
C.
2. LCD may be unreadable, but relay is operational.
IEEE C37.90-2005
Dry cold test
-40ºC 12h
2, 3
3. For PS_L (24-60 Vdc), the minimum start up voltage is 48Vdc at -40ºC.
IEEE C37.90-2005
Damp heat test +25ºC Rh = 95%, 96h IEEE C37.90-2005
Storage test +85ºC 96h -40ºC 96h IEEE C37.90-2005