Mitsubishi Electric NF400-HEW, Instruction Manual

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13
Caution
5.4 Wiring of MDU terminal block
[Breaker-mounting MDU]
● The power supply side terminals of the MDU are M3 screws.
For tightening, apply the suitable tightening torque (0.5 to 0.7 N ･ m).
● If two crimp terminals are used for transition wiring on the power supply side terminal of the MDU, it may be difficult to close the terminal
cover depending on the wire and the crimp terminals.
In that case, close the terminal cover after taking measures such as bending the crimp terminals.
● From the load side terminal of the MDU, remove the connector cover and removable connector, and connect a wire. For the suitable size of
terminal block wire, use those shown below. (In the case of no-transmission specification, the load side terminal is not provided.)
Screwdriver insertion
position
[1] Insert the screwdriver.
[2] Remove
the connector
cover.
Loosen the (two) screws and remove the connector.
Connector
cover
Terminal cover
Power supply side terminal
(M3 screw)
Load side terminal
(Removable connector)
Suitable wire size One connected Two connected
Solid wire 0.2 to 2.5 mm
2
0.2 to 2.5 mm
2
0.25 to 2.5 mm 2
(*1)
0.25 to 1.0 mm 2
(*1)
0.25 to 2.5 mm
2
(*2)
0.5 to 1.5 mm
2
(*3)
0.2 to 1.0 mm
2
(*4)
0.2 to 1.5 mm
2
Twisted wire
Twisted wire: Twisted wire with rod terminal (with no insulation sleeve)
Twisted wire: Twisted wire with rod terminal (with insulation sleeve)
*1. Pin terminals shown below: A series as applicable terminals
*2. Pin terminals shown below: AI series as applicable terminals
*3. Pin terminals shown below: AI-TWIN series as applicable terminals
*4. When polyethylene insulation vinyl sheath cables (equivalent to those with a CPEV shield) are used, the connection of two wires, up to
1.2 mm 2 as solid wires, is possible.
● After a wire is inserted into the terminal, tighten it with the adequate tightening torque.
In addition,when tighteninga screw, start turning it slowly and straight.
Adequate tightening torque 0.5 to 0.6 N ･ m
Tool: Flathead screwdriver Blade edge thickness: 0.6 mm, full width: 3.5 mm
[Recommended screwdriver: PHOENIX CONTACT screwdriver model SZS 0.6 × 3.5]
Electric wire covering stripped length 7 mm
● Electric wire terminal treatment: For a solid wire, the electric wire can be connected with the covering stripped.
For a twisted wire, strip the covering, twist the core, and then insert it into the junction area.
Make sure that the core filler does not short neighboring electrodes. Do not solder plate the core.
The following pin terminals (crimp terminals) are also commercially available.
Rod terminal for one-wire connection
PHOENIX CONTACT
A series (with no insulation sleeve)
Wire cross-sectional area of 0.25 mm
2
: A 0.25 - 7 (product No.: 3202478) (*5)
Wire cross-sectional area of 0.5 mm 2 : A 0.5 - 8 (product No.: 3202481) (*5)
Wire cross-sectional area of 0.75 mm
2
: A 0.75 - 8 (product No.: 3202504) (*5)
Wire cross-sectional area of 1 mm 2 : A 1 - 8 (product No.: 3202517) (*5)
Wire cross-sectional area of 1.5 mm
2
: A 1.5 - 7 (product No.: 3200263)
Wire cross-sectional area of 2.5 mm 2 : A 2.5 - 7 (product No.: 3200289)
*5. With A 0.25 - 7 to A 1 - 8, two wires can be inserted to the connector.
A I series (with insulation sleeve)
Wire cross-sectional area of 0.25 mm
2
: A I 0.25 - 8 YE (product No.: 3200852)
Wire cross-sectional area of 0.5 mm
2
: A I 0.5 - 8 WH (product No.: 3200014)
Wire cross-sectional area of 0.75 mm
2
: A I 0.75 - 8 GY (product No.: 3200519)
Wire cross-sectional area of 1 mm
2
: A I 1 - 8 RD (product No.: 3200030)
Wire cross-sectional area of 1.5 mm
2
: A I 1.5 - 8 BK (product No.: 3200043)
Wire cross-sectional area of 2.5 mm
2
: A I 2.5 - 8 BU (product No.: 3200522)
Rod terminal for two-wire connection
PHOENIX CONTACT
A I - TWIN series (with insulation sleeve)
Wire cross-sectional area of 0.5 mm
2
× 2 : A I - TWIN 2 × 0.5 - 8 WH (product No.: 3200933)
Wire cross-sectional area of 0.75 mm
2
× 2 : A I - TWIN 2 × 0.75 - 8 GY (product No.: 3200807)
Wire cross-sectional area of 1 mm
2
× 2 : A I - TWIN 2 × 1 - 8 RD (product No.: 3200810)
Wire cross-sectional area of 1.5 mm
2
× 2 : A I - TWIN 2 × 1.5 - 8 BK (product No.: 3200823)
Removable
connector