IMO BR6B4040A MCB - 4P - B Curve - 40A - 6kA

IMO BR6B4040A MCB – 4P – B Curve – 40A – 6kA

IMO BR6B4040A miniature circuit breaker with 40A rated current, B curve tripping characteristic, 4 pole configuration and 6kA breaking capacity for industrial and commercial electrical protection.

SKU: BR6B4040AMPN: BR6B4040A
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Why Choose the IMO BR6B4040A Miniature Circuit Breaker?

The IMO BR6B4040A is a robust 6kA miniature circuit breaker (MCB) designed to protect electrical installations against overloads and short circuits in industrial, commercial and OEM applications. Part of the trusted IMO BR6 Series, it combines dependable circuit protection with straightforward installation and long service life.

Featuring a B curve tripping characteristic, this circuit breaker is ideally suited to resistive loads and general-purpose electrical circuits where lower inrush currents are expected. Its compact DIN rail design, finger-safe terminals and clear contact indication simplify installation while helping maintain safe operation.

With a 40A rated current, 4 pole configuration and a 6kA breaking capacity, the BR6B4040A is an excellent choice for three-phase distribution boards, control panels and industrial power distribution systems requiring reliable overcurrent protection.

Key Advantages

  • Reliable 6kA miniature circuit breaker for industrial and commercial installations.
  • 40A rated current for higher current distribution circuits.
  • B curve tripping characteristic for resistive and general electrical loads.
  • 4 pole configuration for three-phase systems with neutral switching.
  • Manufactured in accordance with IEC 60898-1.
  • Simple DIN rail installation with finger-safe terminals.

Key Features

  • IMO BR6 Series miniature circuit breaker.
  • 40A rated current.
  • 4 pole configuration.
  • B curve tripping characteristic.
  • 6kA short circuit breaking capacity.
  • 230/400V AC operation.
  • DIN rail mounting.
  • Contact position indicator with transparent labelling window.

Reliable Circuit Protection for Industrial Installations

Miniature circuit breakers automatically disconnect the electrical supply when overloads or short circuits occur, helping to protect cables, equipment and electrical infrastructure from damage while improving installation safety.

The IMO BR6 Series is designed for dependable operation in electrical distribution systems, offering reliable protection, straightforward installation and compatibility with standard DIN rail enclosures used throughout industrial and commercial applications.

Typical Applications

  • Industrial distribution boards.
  • Commercial electrical installations.
  • OEM control panels.
  • Machinery power distribution.
  • Building services electrical systems.
  • Three-phase electrical protection.

Technical Specifications

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Current 40 A
Phase Three Phase
Poles 4-pole
Device Type MCB
Trip Curve B curve
Breaking Capacity 6 kA
Manufacturer IMO Precision Controls
Series BR6 Miniature Circuit Breakers
Model BR6B4040A
Product type Miniature Circuit Breaker (MCB)
Rated current 40A
Tripping characteristic B Curve
Number of poles 4 Pole
Rated voltage 230/400V AC
Frequency 50 / 60Hz
Breaking capacity 6kA
Protection rating IP20
Mounting type DIN rail
Operating temperature -30°C to +60°C
Standard IEC 60898-1
HS Code 8536201090
Country of Manufacture China

Frequently Asked Questions

What is the IMO BR6B4040A used for?

The BR6B4040A protects electrical installations against overloads and short circuits in industrial and commercial power distribution systems.

What is the rated current?

This miniature circuit breaker has a 40A rated current.

What does the B curve tripping characteristic mean?

A B curve breaker is intended for general-purpose electrical circuits and resistive loads with relatively low inrush currents.

What is the breaking capacity?

The BR6B4040A provides a 6kA short circuit breaking capacity.

How is the circuit breaker installed?

It is designed for quick installation onto a standard DIN rail within electrical distribution boards and industrial control panels.

Trusted by Electrical Professionals Worldwide

IMO BR6 miniature circuit breakers are trusted by electricians, panel builders and automation engineers for dependable overcurrent protection, straightforward installation and reliable long-term performance.