Hitachi S-4800 manual 100/200V Safety circuit

Use 8 square mm cable with M5 wire terminal.

CAUTION

Be sure that the output of the step down transformer is AC100V ±10%. Irregular connection causing higher voltage will result serious damage to the equipment.

Alternately the step down transformer may be put at the input of S-4800.

In the case, connect the input of the transformer to the main breaker of the site power supply. Connect the out put to the Main breaker (ELB) of S-4800. Refer fig 1-5 for the connection.

However, the former way (put the step down transformer next to the S-4800 Main breaker) is strongly recommended for safety.

100/200V

		Safety circuit
	MAIN-ELB		Current
100V		Short	Breaker

Step Down Transformer 50A

Fig 1-5 Connection of the step down transformer

In both of above cases, ground the instrument at a grounding resistance lower than 100 ohms. The grounding terminal must not be common to other electric equipment, i.e. exclusive grounding should be provided.

NOTICE

The instrument provides one of following two types of Main ELB.

(1) For using with 200 to 240V power line

Leakage current breaker (with key lock, CE/UL conforming)

Capacity	: 6.4kVA
Maximum current	: 32A
Sensitive current	: 30mA
Short-circuit breaking capacity	: 25kA
(2) For using with 100V power line

Leakage current breaker(without key lock, CE or UL not conforming)

Capacity	: 5kVA
Maximum current	: 50A
Sensitive current	: 30mA
Short-circuit breaking capacity	: 5kA

Instruments shipped to USA and Europe area and ordered to meet S2 guideline provide the type of above (1).

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