Hitachi SJ300 Series Breaker Sizes, Wire Connectors, Fuse and Circuit, Motor Overload Protection, Breaker, Breaker, for Fuse or, for Fuse or, Ampere Rating, Ampere Rating

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Fuse and Circuit The inverter’s input power wiring must include UL Listed, dual-element, 600V fuses, or UL

Breaker Sizes			Listed, inverse-time, 600V circuit breakers.
Input	Motor		200V	Ampere Rating	Input	Motor		400V	Ampere Rating
	Output					Output
				for Fuse or					for Fuse or
Voltage			Inverter Model		Voltage			Inverter Model
	HP	kW		Breaker		HP	kW		Breaker
	1/2	0.4	SJ300-004LFU	10		1	0.75	SJ300-007HFU/E	10
	1	0.75	SJ300-007LFU	10		2	1.5	SJ300-015HFU/E	10
	2	1.5	SJ300-015LFU	10		3	2.2	SJ300-022HFU/E	10
	3	2.2	SJ300-022LFU	15		5	4.0	SJ300-040HFU/E	15
	5	3.7	SJ300-037LFU	20		7.5	5.5	SJ300-055HFU/E	15
	7.5	5.5	SJ300-055LFU	30		10	7.5	SJ300-075HFU/E	20
	10	7.5	SJ300-075LFU	40		15	11	SJ300-110HFU/E	30
200V
	15	11	SJ300-110LFU	60		20	15	SJ300-150HFU/E	40
	20	15	SJ300-150LFU	80		25	18.5	SJ300-185HFU/E	50
					400V
	25	18.5	SJ300-185LFU	100		30	22	SJ300-220HFU/E	60
	30	22	SJ300-220LFU	125		40	30	SJ300-300HFU/E	70
	40	30	SJ300-300LFU	150		50	37	SJ300-370HFU/E	90
	50	37	SJ300-370LFU	175		60	45	SJ300-450HFU/E	125
	60	45	SJ300-450LFU	225		75	55	SJ300-550HFU/E	125
	75	55	SJ300-550LFU	250		100	75	SJ300-750HFU/E	175
						125	90	SJ300-900HFU/E	200
						150	110	SJ300-110HFU/E	250
						175	132	SJ300-1320HFE	300
						200	150	SJ300-1500HFU	300

Wire Connectors

WARNING: Field wiring connections must be made by a UL Listed and CSA Certified ring lug terminal connector sized for the wire gauge being used. The connector must be fixed using the crimping tool specified by the connector manufacturer.

Terminal (ring lug) Cable support

Cable

Motor Overload Protection

Hitachi SJ300 inverters provide solid state motor overload protection, which depends on the proper setting of the following parameters:

•B012 “electronic overload protection”

•B212 “electronic overload protection, 2nd motor”

•B312 “electronic overload protection, 3rd motor”

Set the rated current [Amperes] of the motor(s) with the above parameters. The setting range is 0.2 * rated current to 1.2 * rated current.

WARNING: When two or more motors are connected to the inverter, they cannot be protected by the electronic overload protection. Install an external thermal relay on each motor.