Instruction book
909935AIB
55
Warnings
• Obey local regulations if they are stricter than the regulations mentioned in this
document.
• Obey the applicable electrical directives when installing and connecting the
compressor to the power circuit:
• CSA/UL
• UL: UL508A
• CSA: C22.2
• Do not allow voltage drops that exceed 10% of the nominal supply voltage to allow
safe shutdown of the installation within 0.4 s
• Apply the listed cable sections on main supply cables AND earth cable.
• Do not exceed the ambient temperature listed in the
Limits
section to avoid cable
damage.
• Mount all cables on a horizontally ventilated cable tray.
• Do not stack or group cables as this avoids heat dissipation.
• Connect the power cable with the correct (CSA certified) cable lugs on the
terminals in the electrical cabinet.
• Respect a minimum distance of 10 mm (0.4") between stripped cable ends.
• Use only the prescribed cable types:
• CSA-UL: (R, RW, T) multicore 90 °C (194 °F)
• Display the fuse type information next to the fuse holder of the mains branch.
Cable size and main fuses
Overview of fuse types
Electrical approval
Fuse type
CSA/UL
class RK5
1
1
Class RK5 according UL248-9
Electrical approval
SSCCR
1
CSA
HRC form II
UL
class RK5
3
1
SSCCR = Standard Short Circuit Current Rating
2
gG/gL type 2 according to IEC609471-4-1, IEC60269, DIN43620, VDE0636
3
Class RK5 according UL248-9
4.4 Quality of safety components
When installing a remote emergency button or a motor contactor, the following B10d values are
advised:
• Emergency stop button:
500 000
• Main contactor:
933 333