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Inverter and applicable peripheral equipment
Wiring apparatus selection
(1) Selection of no-fuse breaker, magnetic contactor, thermal relay, and wiring
No-fuse breaker
Magnetic
contactor
Thermal
relay
∗
1
Wiring (mm
2
)
∗
2
Inverter No.
Applicable
motor
(kW)
(Rated current)
Matsushita Electric Works
(Contact configuration)
Matsushita Electric Works
(Current adjustment range)
Matsushita Electric Works
Input
(for power
supply)
Output
(for motor)
Control
circuit
M2X044***
0
.
4
BBC35N
(5A)
BMFT61044N
(3P+1a)
BMF903E
(1
.
4
-
2
.
2A)
2
.
0
(AWG14)
2
.
0
(AWG14)
0
.
75
(AWG18)
M2X084***
0
.
75
BBC35N
(5A)
BMFT61044N
(3P+1a)
BMF904E
(1
.
7
-
2
.
6A)
2
.
0
(AWG14)
2
.
0
(AWG14)
0
.
75
(AWG18)
M2X154***
1
.
5
BBC310N
(10A)
BMFT61044N
(3P+1a)
BMF907E
(2
.
8
-
4
.
2A)
2
.
0
(AWG14)
2
.
0
(AWG14)
0
.
75
(AWG18)
M2X224***
2
.
2
BBC315N
(15A)
BMFT61044N
(3P+1a)
BMF911E
(4
.
0
-
6
.
0A)
2
.
0
(AWG14)
2
.
0
(AWG14)
0
.
75
(AWG18)
M2X374***
3
.
7
BBC320N
(20A)
BMFT61044N
(3P+1a)
BMF915E
(5.0
-
8
.
0A)
2
.
0
(AWG14)
2
.
0
(AWG14)
0
.
75
(AWG18)
M2X554***
5
.
5
BBC320N
(20A)
BMFT61044N
(3P+1a)
BMF927E
(9
.
0
-
13
.
0A)
3
.
5
(AWG12)
2
.
0
(AWG14)
0
.
75
(AWG18)
M2X754***
7
.
5
BBC330N
(30A)
BMFT61044N
(3P+1a)
BMF937E
(12
-
18A)
3
.
5
(AWG12)
3
.
5
(
AWG12)
0
.
75
(AWG18)
The cables connected to the ground terminal must be the same size as the power
supply cable and the motor cable, respectively.
(2) Relay selection
For relays used in control circuits such as the control input terminal, you should use a
small signal relay (min. guaranteed current of 1mA or less) in order to prevent poor
contact.
<
Examples
>
Matsushita Electric Works:
DS type, NK type, HC type
Omron: G2A
type
(3) Control circuit switch selection
If using a switch instead of a relay, use a switch for extremely small current in order to
prevent poor contact.
<
Example
>
Nihon
Kaiheiki: M-2012J-G
∗
1 To use the inverter for parallel operation, select the thermal relay according to the motor used.
∗
2 The above motor cable sizes apply to the case where the distance between the motor and the inverter is
20 m or less. If the distance between the motor and the inverter exceeds 20 m, select a cable size of
the next higher rank.