| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
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General
WSB9SZ-125 external circuit breaker for watt-hour
meter is full automatic pre-paid circuit breaker, applied
at lines of AC 50Hz or 60Hz, rated operation voltage
AC230/400V, rated current from 6A to 125A to make
remote controlling or automatic closing to the line,
to protect overload and short circuit to the lines,
also for infrequent changeover of lines. It is external
special circuit breaker equipped to the IC card
pre-paid watt-hour meter, is widely used at construction
of low voltage power grid, power station,airport,
sear port, railway, telecommuinication, radar station,
transport signal, industrial and mining, is the ideal
product of centralized meter reading and charge
controlling at buildings of residual, hotel, store, office
and smart home.
The product meets standards of IEC 60898-1, GB 10968.1,
Technical Specification for External LV Circuit Breaker
of Charge Control Watt-hour Meter of China Southern
Power Grid.
| S.No | Test current (A) | Initial state | Time limit | Current rating (A) | Expected result | Environment temperature | remarks |
| 1 | 1.13In | Cold | t≤1h | In≤63 | Not tripping | 30ºC~35ºC | |
| t≤2h | In>63 | ||||||
| 2 | 1.45In | Just follow the last test item | t<1h | In≤63 | Tripping | 30ºC~35ºC | Current rises to the set value in 5s steadily |
| t<2h | In>63 | ||||||
| 3 | 2.55In | Cold | 1s | In≤32 | Tripping | 30ºC~35ºC | |
| 1s | In>32 | ||||||
| 4 | 5In | Cold | t≤0.1s | Not tripping | 30ºC~35ºC | Connect the current by closed auxiliary switch | |
| 10In | t<0.1s | Tripping | |||||
| Current rating In (A) | 6 | 10 | 16, 20 | 25 | 32 | 40, 50 | 63 | 80 | 100 | 125 |
| Conductor sectional area S (mm2) | 1 | 1.5 | 2.5 | 4 | 6 | 10 | 16 | 25 | 30 | 50 |
Frequently Asked Question (FAQ)
Q: About the company
A: Westhomes® is a professional manufacturer for low voltage and high voltage electrical products with a thirty-year history.
Main supplier of state-owned companies like China Stae Grid, China Southern Power Grid through bidding with bunches of test certificates, sales records and operation performance to support.
Enough investment for research and development for the products innovation.
Q: About Warranty
A: 18 months from the date of receivement
Q: About shipment method
A: Depends on the required quantity and delivery urgency, both international express like UPS / DHL / EMS / HK EMS / FedEx / TNT (door to door service) and normal sea shipping & air freight also avaliable.
Q: About MOQ
A: Up to the client
Q: About payment method
A: We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.
Q: About ordering process
A: First to send an inquiry via made-in-china platform or directly to the contact e-mail address. All the following thing is the communication between us.
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