
2-5
2.3.2 Screw specifications and recommended wire sizes
(1) Arrangement of main circuit terminals
The tables and figures given below show the screw specifications and wire sizes. Note that the terminal arrangements
differ depending on the inverter types. In each of the figures, two grounding terminals ( G) are not exclusive to the
power supply wiring (primary circuit) or motor wiring (secondary circuit).
Use crimp terminals covered with an insulation sheath or with an insulation tube.
The recommended wires for main circuit terminals are selected according to the sizes conforming to UL508C.
Table 2.5 Screw Specifications
Inverter type
Refer to:
Screw specifications
Three-phase
230 V
Three-phase
460 V
Main circuit
terminals
Grounding
terminals
Auxiliary control
power input
terminals
[R0, T0]
Auxiliary fan
power input
terminals
[R1, T1]
Screw
size
Tightening
torque
lb-in (N·m)
Screw
size
Tightening
torque
lb-in (N·m)
Screw
size
Tightening
torque
lb-in (N·m)
Screw
size
Tightening
torque
lb-in (N·m)
EQ7-20P5-C
EQ7-40P5-C
Figure A
M3.5
10.6 (1.2) M3.5 10.6 (1.2)
--
--
--
--
EQ7-2001-C
EQ7-4001-C
EQ7-2002-C
EQ7-4002-C
Figure B
M4
15.9 (1.8)
M4
15.9 (1.8)
M3.5 10.6 (1.2)
EQ7-2003-C
EQ7-4003-C
EQ7-2005-C
EQ7-4005-C
EQ7-2007-C
EQ7-4007-C
Figure C
M5
31.0 (3.5)
M5
31.0 (3.5)
EQ7-2010-C
EQ7-4010-C
EQ7-2015-C
EQ7-4015-C
EQ7-2020-C
EQ7-4010-C
EQ7-2025-C
EQ7-4025-C
Figure D
M6
51.3 (5.8)
M6
51.3 (5.8)
EQ7-2030-C
EQ7-4030-C
EQ7-2040-C
EQ7-4040-C
EQ7-2050-C
EQ7-4050-C
Figure E
M8
119 (13.5)
M8
119 (13.5)
EQ7-4060-C
EQ7-4075-C
EQ7-4100-C
EQ7-2060-C
EQ7-4125-C
Figure F
M10
239 (27)
M3.5
10.6 (1.2)
EQ7-2075-C
EQ7-2100-C
--
EQ7-4150-C
Figure G
--
EQ7-4200-C
EQ7-2125-C
--
Figure M
M12
425 (48)
M10
239 (27)
--
EQ7-4250-C
Figure H
--
EQ7-4300-C
EQ7-2150-C
EQ7-4350-C
Figure I
EQ7-4450-C
--
EQ7-4500-C
Figure J
--
EQ7-4600-C
--
EQ7-4700-C
Figure K
--
EQ7-4800-C
--
EQ7-4900-C
Figure L
--
EQ7-41000-C
When the inverter power is ON, a high voltage is applied to the following terminals.
Main circuit terminals: L1/R, L2/S, L3/T, P1, P(+), N(-), DB, U, V, W, R0, T0, R1, T1, AUX-contact (30A, 30B, 30C,
Y5A, Y5C)
Insulation level
Main circuit - Enclosure
: Basic insulation (Overvoltage category III, Pollution degree 2)
Main circuit - Control circuit
: Reinforced insulation (Overvoltage category III, Pollution degree 2)
Relay output - Control circuit : Reinforced insulation (Overvoltage category II, Pollution degree 2)
An electric shock may occur.