Table 23. 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, Rh
>93%
IEC 60068-2-30
Storage test
• 96 h at -40ºC
• 96 h at +85ºC
IEC 60068-2-48
Transformer Protection and Control
1MRS756978 D
RET630
Product version: 1.1
Issued: 2011-05-18
24
ABB