✉ Nanna@doto-cn.com 📞 +86-574-81859726 📍 Ningbo, Zhejiang, China
Mon–Sat 8:00–18:00
Products
A complete range of low voltage electrical products — AC contactors, circuit breakers, relays, meters and accessories — engineered for reliable performance in global markets.
Circuit Breaker MCB-M6-4P
Circuit Breaker

Circuit Breaker MCB-M6-4P

The Doto M6-63 4P miniature circuit breaker switches three phases plus neutral in one four-module housing, intended for 400V three-phase circuits where full-pole isolation is required. The ganged blue handle trips all four poles together, and the wide 1-63A current range with B/C/D curves covers lighting feeders, socket circuits and small motor branches. Like the whole M6 family it is rated 6kA, IP20, -30 to +70 degrees C, and complies with IEC/EN60898-1 and IEC/EN60947-2.

✔ CE ✔ IEC 60947 ✔ OEM Available

Technical Specifications

Rated current (A)1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Pole4P
Breaker capacity6KA
Rated voltage230V/240V AC, 400V/415V AC
Rated frequency50/60Hz
Rated insulated voltage690V
Impulse withstand voltage4KV
Instantaneous tripping typeB/C/D
Mechanical endurance20000 cycles
Electrical endurance10000 cycles
Protection degreeIP20
Wiring termination25 mm2
Working temperature-30°C to +70°C
Altitude above sea2000 m max.
Conformed standardsIEC/EN60898-1, IEC/EN60947-2

Circuit Breaker MCB-M6-4P

Circuit Breaker MCB-M6-4P - photo 2

Circuit Breaker MCB-M6-4P - photo 3

Related labels:

Get a quotation for Circuit Breaker MCB-M6-4P

Send us the model & quantity — our sales team replies within 24 hours with FOB / CIF price and lead time. OEM & custom specifications welcome.

Submit Inquiry →

Looking for a Reliable Electrical Supplier?

Send us your inquiry — quotation and reply within 24 hours.

Contact Us Now →

Ningbo Doto Electric Co., Ltd.

Professional manufacturer of AC contactors, circuit breakers, capacitors, hour meters and counters. Factory-direct, CE & ROHS certified, exporting worldwide.

Contact

  • Tel. 0086-574-81859726
  • Mobile 0086-130-7191-2583
  • Email Nanna@doto-cn.com
  • No.99 Jinchuan Road, Jiaochuan Street, Zhenhai District, Ningbo, Zhejiang, China
© 2026 Ningbo Doto Electric Co., Ltd. All rights reserved. Sitemap · Privacy Policy