| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
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General
WCM4(E) series moulded case circuit breaker (MCCB
for short) is one of new type circuit breaker developed
based on international advanced technology. The related
insulation voltage is 1000V, applied to circuit of AC50Hz
or (60Hz),rated operation voltage 400V and below, rated
operation current from 15A to 1600A for distributing electric
energy. It is used for infrequent closing and breaking under
normal circumstance to make protection at overload,
under-voltage at lines and equipments. The circuit breaker
of frame size rated current under 400A can also protect the
squirrel-cage motor of infrequent start, breaking at running,
overload, short circuit and under-voltage.
The product meets standards of GB 14048.2 and IEC 60947-2.
| Frame size breaking grade | Rated operation short circuit breaking capacity (kA) | Rated ultimate short circuit breaking capacity Ics (kA) | Flashover distance (mm) | Rated service voltage (V) | Rated service frequency (Hz) | Instantaneous setting multiple | Current rating (A) | |
| Power distribution | Motor protection | |||||||
| 100S | 22 | 35 | 0 | AC400 | 50/60 | 10In | 12In | 15, 20, 25, 32, 40, 50, 63, 80, 100 |
| 100H | 35 | 50 | ||||||
| 100R | 85 | 100 | ||||||
| 100L | 125 | 125 | ||||||
| 250S | 25 | 50 | 100, 125, 160, 180, 200, 225, 250 | |||||
| 250H | 42 | 60 | ||||||
| 250R | 85 | 100 | ||||||
| 250L | 125 | 125 | ||||||
| 400S | 35 | 50 | 250, 300, 350, 400 | |||||
| 400H | 85 | 100 | ||||||
| 400L | 125 | 125 | ||||||
| 630S | 35 | 50 | 400, 500, 630 | |||||
| 630H | 85 | 100 | ||||||
| 630L | 125 | 125 | ||||||
| 800/1600 | 65 | 85 | 800, 1250, 1600 | |||||
| 800/1600H | 85 | 100 | ||||||
| Current rating of tripper (A) | Thermal tripper (environment temperature +40ºC) | Action current of electromagnetic tripper (A) | Remarks | |
| 1.05In (cold) non-action time (h) | 1.30In (thermal) non-action time (h) | |||
| 63≤In≤100 | ≥2 | ≥2 | 10In×(1±20%) | Power distribution |
| 100≤In≤1600 | ≥2 | ≥2 | 5In×(1±20%) 10In×(1±20%) |
|
| 10≤In≤400 | 1.0In (cold) non-action time (h) | 1.20In (thermal) non-action time (h) | 12In×(1±20%) | Power distribution |
| 2 | 2 | |||
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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