Shindaiwa Limited
POWERCENTER 15
Four Ashes, Wolverhampton, UK
PC15-OM-Vs: 1
T: +44 (0)1902 791855
Slide Switches
Leakage
Lamp(Red)
Reset Button
Test Button
Pilot
Lamp(Green)
5-5
．
Earth Leakage Circuit Breaker and Grounding
Warning: Electric Shock
Do not operate the equipment with wrong adjustment of Earth Leakage relay, to
avoid electrical shock when the relay is not properly set.
Always be sure to stop the engine and repair the corresponding earth leakage
location when earth leakage circuit breakers operate.
Warning: Fire
Do not ground wiring of earth leakage circuit breakers of the equipment to piping
that passes through flammable material.
The equipment includes earth leakage circuit breakers (solidly grounded type) in order to
prevent electric shock. Immediately isolate the electrical circuit if earth leakage occurs due
to insulation failure in devices using the equipment or similar reason.
(1) Three phase 415V / Single phase 240V Earth Leakage Circuit Breaker (ELCB)
The equipment is provided with an earth leakage relay in the Circuit Breaker to detect any
leakage arisen due to the troubles as insulation failure of the load while the generator is
running and cutting off the circuit for protection against any accident such as electrical shock.
The sensitivity current of earth leakage relay can be adjusted from 30mA to 1,000mA with
duration of 0.04sec to 2.00sec by selecting slide switch located on the front panel of the
leakage relay. For multiple load connection, set the leakage relay setting to be larger than
each Individual leakage current of each load.
Selection of Sensitivity Current and activation duration
Unscrew the leakage relay cover, and adjust the leakage relay to required
current and duration.
（
Refer to the following selection table.
）
Default setting is below from factory
sensitivity current : 30mA
activation duration : 0.04sec
■ Operation Check
1) Start the engine (Refer to 8-1).
2) Turn the 3-phuse ELCB (lever) to [ON] position.
3) Push the test button on leakage relay. The devise
is found to be normal when the leakage indication
button and the lever positions at the middle of
[ON] and [OFF].
4) Press reset button to turn off the leakage warning
indicator.
5) Push down the lever [OFF] on 3-phase ELCB to
reset the breaker to [ON] position.
Leakage relay keeps shut off the circuit once it is
activated, until reset button is pressed or
engine is stopped.
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