Adveco EB0025, Руководство по эксплуатации продукта

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Circuit Breakers
CB1 through CB
Schneider
Circuit breakers protect the circuits from over current. They come in single phase or
three phase blocks. They are rated in Amps based on the load they supply.
Part Name:
Wiring Diagram Key:
Manufacturer's Part Details:
Function:
Testing:
1. With the power on and the circuit breaker switched to off, measure the voltage between the top terminals of
the breaker (terminal 1, plus terminals 3 and 5 for three phase breakers) and Earth, and then the bottom terminal
(terminal 2, plus terminals 4 and 6 for three phase breakers) and Earth. The correct readings are 230V on the
live side 1,3,5; and 0V on the load side 2,4,6. If 0V on the live side, test Main Isolator. If 230V on load side
replace circuit breaker.
2. With the power on and the circuit breaker switched to on, measure the voltage between the load terminal
(terminal 2) of the breaker and Earth, repeat for terminals 4,6 for three phase breakers. The correct reading is
230V. If 0V replace Circuit Breaker
3. Put a load on the breaker by switching on the immersion heater or other downstream component. If the
breaker trips investigate the components and the wiring for a short. Swap two equal rated breakers if no fault
can be found to test for breaker fault or system fault.
EB0025
3. Troubleshooting
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P R A C T I C A L , E F F I C I E N T & S U S T A I N A B L E B U I L D I N G S E R V I C E S S O L U T I O N S
EB0025-EB0028-EB0030 Control Panel - Installation and maintenance manual