Electrical data, connections and wiring
The motor protection module comes
preinstalled within the terminal box. Phase
sequence protection connections and thermistor
connections are pre-wired. The module must be
connected to a power supply of the appropriate
voltage. The module terminals are 0.25" size
Faston type.
The motor protection module comes
preinstalled within the terminal box and has
pre-wired thermistor connections. The module
must be connected to a power supply of the
appropriate voltage. The module terminals are
0.25" size Faston type except for 24V DC module
(screw connection).
SM/SZ 175-185 - J, K, P, S, U, W,
X, Y versions
The terminal box is provided with 2 double
knockouts for the power supply and 3 knockouts
for the safety control circuit.
The 2 power supply, double knockouts
accommodate the following diameters:
Ø 1”3/4 hole (for a 1”1/4 conduit) and Ø1”3/8
hole (for a 1” conduit)
Ø1.26” hole & Ø1” hole
The 3 other knockouts are as follows:
Ø 0.81”, Ø 7/8” (for a 1/2” conduit) and Ø 0.65”
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.
IP rating
SY/SZ 240 – 300 – 380
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 2 inch (UL 1"1/2 conduit) & Ø 1.72 inch (UL
1"1/4 conduit) & Ø 1.36 inch (UL 1" conduit)
• Ø 1.59 inch (ISO40) & Ø 1.27 inch (ISO32) & Ø 1
inch (ISO25)
• Ø 1 inch (ISO25)
The 4 others knockouts are as follows:
• Ø 0.89 inch (PG16) (UL 1/2") & Ø 0.65 inch
(ISO16) (x2)
• 0.81 inch (ISO20 or PG13.5) (x2)
Black
Blue
Brown
M1 - M2
Control circuit
Faston 1/4” tabs
Power supply
Sump heater
Module
power supply
}
}
L
N
1
2
14
12
11
Internal control contact
Safety
circuit
Thermistor
connection
Module power
L
N S1 S2 M1 M2
L1 L2 L3
Black Blue
Brown
Phase sequence input
Internal control contact
Safety
circuit
Thermistor
connection
Module power
Mot
or P
rotec
tion
12
14
11
N
2
1
Module
L1
Cover holding screw (x2) - Torque: 1.6 ft.lb
Faston 1/4" tabs
Terminal box
Power supply
Sump heater
Protection module
power supply
Safety circuit
Application guidelines
16
FRCC.PC.003.A5.22
