ABB REM615 ANSI - Page 17

ABB 17
Motor Protection
REM615 ANSI
Product Version 2.0
1MAC251744 -PG Rev. A
Issued: 03.01.2010
Table 16. Degree of protection of  u
sh-mounted relay
Description Value
Front side
IP 54
Back side, connection terminals IP 20
Table 17. Environmental conditions
Description Value
Continuous operating temperature range -25 C to +55° C
Short-term operating temperature range -40 C to +85° C (<16 h)
1) 2)
Relative humidity <93%, non-condensing
Atmospheric pressure 12.47 - 15.37 psi (86 - 106 kPa)
Altitude up to 6561  . (2000 m)
Transport and storage temperature range -40...+85ºC
1)
Degradation in MTBF and LHMI performance outside continuous operating temperature range.
2)
For relays with an LC communications interface, the maximum operating temperature is +70° C
Table 18. Environmental tests
Description Type test value Reference
Dry heat test (humidity
<50%)
• 96 h at +55ºC
• 16 h at +85ºC
1)
IEC 60068-2-2
Dry cold test • 96 h at -25ºC
• 16 h at -40ºC
IEC 60068-2-1
Damp heat test, cyclic • 6 cycles (12 h + 12 h) at +25°C…+55°C, humidity >93% IEC 60068-2-30
Storage test • 96 h at -40ºC
• 96 h at +85ºC
IEC 60068-2-48
1)
For IEDs with an LC communication interface the maximum operating temperature is +70oC