

WSB9L series Earth Leakage Circuit Breaker (ELCB for
short) is applies in circuit of AC 50/60Hz, rated voltage
AC230, rated current upto 100A, for protection of electri
shock and elelctricity leakage of equipments, overload
and short circuit, also for infrequent changeover of lines
under normal circumstance, are widely used at places of
hotel, house, industrial & mining and similar buidlings.
The product meets standards of GB 16917.1 GB 16917.22.
Frequency: 50Hz/60Hz
Pole: 1P+N, 3P+N
Voltage: AC400V
kA: 6kA(N); H:10kA(H)
Amps: 6, 10,16, 20, 25, 32, 40, 50, 63, 80, 100
Width: 36, 72mm
Mounting: Din rail
IΔn: 30mA, 50mA, 100mA
Standard: IEC61009
Main technical data
Rated voltage (V) | Initial state | Rated residual action current IΔn (mA) | Rated residual non-action current IΔno (mA) | Max breaking time | Rated short circuit breaking capacity (A) | Type of instantaneous releaser | ||
IΔn | 2IΔn | 5IΔn | ||||||
AC230 | 6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100 | 30 | 15 | 0.2 | 0.1 | 0.04 | 6000 | C |
Current rating (A) | Test current | Initial state | Time limit | Expected result | Remarks | |
6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100 | 1.13In | Cold | t≤1h (6-63A) | Not tripping | ||
t≤2h (80A) | Tripping | |||||
1.45In | Thermal | t<1h (6-63A) | Tripping | Current rise to the set value in 5s steadily | ||
t<2h (80A) | Tripping | |||||
2.55In | Cold | 1s | Tripping | In≤32A | ||
1s | In>32A | |||||
C | 5In | Cold | t≤0.1s | Not tripping | Connect the current by closed auxiliary switch | |
10In | t<0.1s | Tripping |











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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.