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WCM5Ex-250 MCCB 400V Electronic Trip Circuit Breaker

WCM5Ex-250 electronic trip MCCB offers 50kA breaking capacity, 400V rated voltage, and overload/short-circuit protection. Available in 3P/4P. Ideal for industrial power distribution.

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WCM5Ex-250 Electronic Trip MCCB | 50kA Breaking Capacity & 400V Protectionr

WCM5Ex-250 electronic trip MCCB offers 50kA breaking capacity, 400V rated voltage, and overload/short-circuit protection. Available in 3P/4P. Ideal for industrial power distribution.

WCM5Ex

WCM5Ex-250 electronic trip MCCB integrates overload & short-circuit protection in one. 50kA breaking capacity, 400V rated, available in 3P/4P configurations. Precision electronic trip unit ensures reliable safety for industrial & commercial power distribution.

Key Features:

Electronic Trip Unit: Provides precise and adjustable overload (thermal) and short-circuit (magnetic) protection, ensuring reliable coordination with system requirements.

High Breaking Capacity: Offers a robust 50kA short-circuit breaking capacity, delivering reliable fault current interruption in demanding industrial environments.

Wide Voltage Application: Rated for 240/415V~ and 415V~, making it suitable for diverse single-phase and three-phase power distribution systems.

Versatile Pole Configurations: Available in 3P and 4P configurations, providing flexibility for various wiring systems and load requirements.

Applications:

Industrial Power Distribution

Commercial Buildings

Residential Electrical Panels

Infrastructure Projects

WCM5Ex
WCM5Ex
WCM5Ex
WCM5Ex

Key attributes

Breaking Capacity 50 kA
Trip Unit Technology Electronic
Material Copper
Model Number WCM5Ex-250
Rated Voltage 400 V, 415 V
Rated Frequency (Hz) 50/60 Hz
Place of Origin Zhejiang, China
Brand Name Westhomes

Main technical parameters

Model WCM5Ex-125 WCM5Ex-250 WCM5Ex-400 WCM5Ex-630(400) WCM5Ex-630(800) WCM5Ex-800
Shell current (A) 125 250 400 630 630 800
Interrupting Capacity Level L M H L M H L M H L M H L M H L M H
Rated current (A) 32(0.4-1In adjustable)
63(0.4-1In adjustable)
100(0.4-1In adjustable)
125(0.4-1In adjustable)
250(0.4-1In adjustable) 400(0.4-1In adjustable) 630(0.4-1In adjustable) 630(0.4-1In adjustable) 800(0.4-1In adjustable)
polar number 3/4 3/4 3/4 3/4 3/4 3/4
Rated insulation voltage Ui(V) AC800
Rated operating voltage Ue (V) AC400
Rated impulse withstand voltage Uimp (V) 8000
Short-circuit breaking capacity Icu (kA) 25 50 85 35 50 85 40 55 100 40 55 100 50 70 100 50 70 100
Short-circuit breaking capacity Ics (kA) 25 50 65 35 50 65 40 55 70 40 55 70 50 70 70 50 70 70
Short-circuit withstand capability Icw (kA/1s) 5 10 10 10 10 10
Applicable Category B B B B B B
Flight arc distance <50 <100
Operational performance Power on (times) 1500 1000 1000 500
No power supply (times) 8500 7000 4000 2500

Derating Factor

Model WCM5Ex-125 WCM5Ex-250 WCM5Ex-400 WCM5Ex-630(400) WCM5Ex-630(800) WCM5Ex-800
Ambient temperature
The decline of change
Capacity coefficient
+40℃ 1In 1In 1In 1In 1In 1In
+45℃ 0.95In 0.96In 0.94In 0.911n 0.91In 0.88In
+50℃ 0.89In 0.91In 0.87In 0.85In 0.85In 0.83In
+55℃ 0.84In 0.87In 0.81In 0.80In 0.80In 0.79In
+60℃ 0.76In 0.82In 0.73In 0.74In 0.74In 0.76In

Packaging and delivery

Selling Units Single item

Lead time

Quantity (pieces) 1-4 5 – 500 > 500
Lead time (days) 7 15 To be negotiated
Outline Dimension Diagram

FREQUENTLY ASKED QUESTION (FAQ)

About the company plus-square Created with Sketch Beta. minus-square Created with Sketch Beta.

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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