ABB RET630 - Environmental Conditions; Environmental Tests

Table 19. Environmental conditions
Description Value
Operating temperature range -25...+55ºC (continuous)
Short-time service temperature range -40...+85ºC (<16h)
Note: Degradation in MTBF and HMI
performance outside the temperature range
of -25...+55ºC
Relative humidity <93%, non-condensing
Atmospheric pressure 86...106 kPa
Altitude up to 2000 m
Transport and storage temperature range -40...+85ºC
Table 20. Environmental tests
Description
Type test value Reference
Dry heat test (humidity <50%) • 96 h at +55ºC
• 16 h at +85ºC
IEC 60068-2-2
Cold test • 96 h at -25ºC
• 16 h at -40ºC
IEC 60068-2-1
Damp heat test, cyclic • 6 cycles at +25…55°C,
humidity 93…95%
IEC 60068-2-30
Storage test • 96 h at -40ºC
• 96 h at +85ºC
IEC 60068-2-48
Transformer Protection and Control 1MRS756788 A
RET630
Product version: 1.0 Issued: 15.09.2009
ABB 19