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WSB3L Series Electronic Residual Current Circuit Breaker

The Westhomes WSB3L Series RCCB is an advanced electronic type residual current operated circuit breaker designed for AC 230V/400V, 50Hz power distribution systems.

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230V/400V RCCB | WSB3L Series Electronic Residual Current Circuit Breaker

This AC 230V/400V RCCB is a crucial component for modern distribution systems where personal safety and equipment protection are paramount.

Engineered to detect and eliminate electrical faults in real-time, this RCCB provides highly effective protection against electric shocks, earth leakage currents, short circuits, and overloads in both residential and commercial environments.

With a rated current up to 63A, the WSB3L RCCB ensures that circuits are disconnected immediately upon detection of leakage or overload, safeguarding human life and electrical equipment. This model is particularly optimized for use in low-voltage distribution systems operating at 230V single-phase or 400V three-phase, making it a reliable choice for office buildings, residential homes, industrial units, and commercial installations.

Constructed with a high-impact resistant and flame-retardant housing, the WSB3L series is compact yet robust, supporting long-term safety and performance. Its advanced internal structure offers precise tripping characteristics and consistent operational reliability, ensuring enhanced protection in a wide range of applications.

KEY INFORMATION

Rated Current 16, 20, 25, 32, 40, 50, 63A
Rated Voltage Ue AC240V (1P+N, 2P); AC400V (3P+N, 4P)
Rated Insulation Voltage Ui AC415
Rated Impulse Withstand Voltage Uimp 4kV
Rated Frequency 50/60Hz
Number of Poles 1P+N, 3P+N
Module Size 36mm, 72mm
Circuit Type AC type, A type, B type
Breaking Capacity 6000A, 10000A
Rated Residual Current I△n 10mA, 30mA, 100mA, 300mA
Rated Residual Operation Current 10, 30, 100, 300mA
Optimum Operation Temperature -5ºC to 40ºC
Terminal Tightening Torque 2.5-4N/m
Terminal Capacity (top) 25mm²
Terminal Capacity (bottom) 25mm²
Electro-mechanical Endurance 4000 cycles
Mounting 35mm DIN rail
The very new tripping structure makes more in safety
Suitable Busbar PIN busbar
Standard IEC61008-1

Basic Info.

Model NO. WSB3L
Arc-extinguishing Medium Air
Structure MCB
Type Circuit Breaker
Certification ISO9001-2000, CE, CB, CCC
Ka 6ka, 10ka
Voltage AC240V/AC400V
Specification 10A-63A
Origin China
Production Capacity 365000
Speed Normal Type Circuit Breaker
Installation Fixed
Poles Number 1p+N, 3p+N
Function Conventional Circuit Breaker,
Circuit-Breaker Failure Protection,
Overcurrent Protection,
OVP(Overvoltage Protection)
Production Line 100% Automic
Cooperation Type OEM ODM
Transport Package Standard
Trademark Westhomes
HS Code 8536300000

FREQUENTLY ASKED QUESTION (FAQ)

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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.

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18 months from the date of receivement

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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.

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Up to the client

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We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.

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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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