Ip Rating; Terminal Box Temperature - Danfoss SH090 Application Manuallines

Application Guidelines
SH180-240-295-380*-485*
Except code 3
SH380 code 3

IP rating

Terminal box temperature

Electrical data, connections and wiring
The terminal box is provided with 2 triple
knockouts and 1 single knockout for power
supply and 4 double knockouts for the safety
control circuit.
The 3 power supply knockouts accommodate the
following diameters:
• Ø 50.8 mm (UL 1"1/2 conduit) and Ø 43.7
mm (UL 1"1/4 conduit) and Ø 34.5 mm (UL 1"
conduit)
• Ø 40.5 mm (ISO40) and Ø 32.2 mm (ISO32) and
Ø 25.5 mm (ISO25)
• Ø 25.5 mm (ISO25)
The 4 others knockouts are as follows:
• Ø 22.5 mm (PG16) (UL 1/2") and Ø 16.5 mm
(ISO16) (x2)
• 20.7 mm (ISO20 or PG13.5) (x2)
The terminal box is provided with Ø 50.5 mm
(ISO50) (UL 1"1/2 conduit) hole with possible
Ø 63.5 mm (ISO63) (UL 2" conduit) knockout for
power supply and 2 x Ø 22.5 mm (PG16)
(UL 1/2" conduit) knockouts for safety control
circuit.
The motor protection module comes preinstalled
within the terminal box. Phase sequence
protection connections and thermistor
connections are pre-wired and should not be not
be removed. The module must be connected to
a power supply of the appropriate voltage. The
module terminals are 6.3-mm size Faston type.
The compressor terminal box according to IEC529 is IP54 for all models when correctly sized IP54 rated
cable glands are used.
First numeral, level of protection against contact and foreign objects
5 - Dust protected
Second numeral, level of protection against water
4 - Protection against water splashing
The temperature inside the terminal box may not
exceed 70°C. Consequently, if the compressor is
installed in an enclosure, precautions must be
taken to avoid that the temperature around the
compressor and in the terminal box would rise
too much. The installation of ventilation on the
enclosure panels may be necessary. If not, the
Black Blue Brown
Faston 1/4" tabs
Power supply
Cover holding screws (x3)
Black
Blue Brown
Terminal box
Power supply
Phase sequence input
L1 L2 L3 Internal control contact
Black Blue Brown
L N S1 S2 M1 M2
Thermistor
connection
Module power
electronic protection module may not operate
properly. Any compressor damage related to this
will not be covered by Danfoss warranty. In the
same manner, cables must be selected in a way
to insure that terminal box temperature does not
exceed 70°C.
AB243586442172en-001301
M1-M2
Control circuit
Module
power supply
Sump heater
Sump heater
M1, M2
Control circuit
Power supply
Safety
circuit
15