Toshiba VF-A7 Selection of wiring equipment, Failure, short-circuit or electric leak

9.Selection of peripheral devices

Danger

・When using the inverter without the front cover, be sure to place the inverter unit inside a

Mandatory

cabinet. If they are used outside the cabinet, it may cause electric shock.

・Be sure to ground every unit. If not, it may cause electric shock or fire on the occasion of

Be grounded failure, short-circuit or electric leak.

9. 1 Selection of wiring equipment

Voltage

class

Applicable motor [kW]

Inverter model

Wire size AWG（cross-section [mm2]）

Main circuit(*1) DC reactor Braking resistor Earth cable

(optional) (optional)

	0.4	VFA7-2004PL
	0.75	VFA7-2007PL		14(2)
	1.5	VFA7-2015PL	14(2)		14(2) (*5)		12(3.5)
	2.2	VFA7-2022PL
	3.7	VFA7-2037PL		12(3.5)
	5.5	VFA7-2055PL	12(3.5)	10(5.5)
	7.5	VFA7-2075PL	10(5.5)	8(8)	10(5.5)		10(5.5)
200V	11	VFA7-2110P	6(14)	6(14)			6(14)
	15	VFA7-2150P		4(22)
class
	18.5	VFA7-2185P	4(22)	2(38)	8(8)		4(22)
	22	VFA7-2220P	2(38)		6(14)
	30	VFA7-2300P	2/0(60)	2/0(60)			2(38)
	37	VFA7-2370P1		4/0(100)	4(22)
	45	VFA7-2450P1	4/0(100)	300			2/0(60)
	55	VFA7-2550P1
				(150)
	75	VFA7-2750P1	300(150)		2(38) or		4/0(100)
	90	VFA7-2900P1		400(200)	6×2(14×2)
	0.75	VFA7-4007PL
	1.5	VFA7-4015PL			14(2)	(*5)
	2.2	VFA7-4022PL	14(2)	14(2)
	3.7	VFA7-4037PL					12(3.5)
	5.5	VFA7-4055PL
	7.5	VFA7-4075PL		12(3.5)	14(2)
	11	VFA7-4110PL	12(3.5)	10(5.5)
	15	VFA7-4150PL	10(5.5)	8(8)			10(5.5)
	18.5	VFA7-4185P	8(8)	6(14)			8(8)
400V	22	VFA7-4220P	6(14)		10(5.5)		6(14)
	30	VFA7-4300P		4(22)
class
	37	VFA7-4370P1	4(22)	2(38)
	45	VFA7-4450P1	2(38)		6(14)		4(22)
	55	VFA7-4550P1		2/0(60)
	75	VFA7-4750P1	2/0(60)	4/0(100)			2(38)
	90/110	VFA7-4110KP1	4/0(100)				2/0(60)
	132	VFA7-4132KP1			4(22)
	160	VFA7-4160KP1	300(150)	300(150)			4/0(100)
	220	VFA7-4220KP1	400(200)	300×2	2/0(60) or
				(150×2)	4×2(22×2)
	280	VFA7-4280KP1	300×2	400×2	4/0(100) or		300
			(150×2)	(200×2)	2/0×2(60×2)		(150)
(*1): Indicates	wire sizes	of input terminals R, S, T and output terminals U, V, W. Wiring distance is supposed to

be 30 m at maximum.

(*2): The recommended cable size is that of the cable (e.g. 600V class,HIV cable) with continuous maximum permissible temperature of 75°C.

(*3): For the control circuit, use shielded wires whose size (cross-section) is 0.75 mm2 or more. The size (cross- section) of wires supplying control power is 2.0 mm2 or more.

(*4): For the earth cable, use wires larger than the specified ones in size (cross-section). (UL standard)

(*5): Recommended wire size for external braking resistor. Refer to 6.13.4 for use of external braking resistor.

(*6): Do not connect more than two wires to a terminal block (except for terminal blocks of 2900, 4160K to 4280K and PA terminals of models that have only one PA terminal). If wiring with more than two wires is needed, set a external relay terminal.

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