IMO BR6B4063A MCB - 4P - B Curve - 63A - 6kA

IMO BR6B4063A MCB – 4P – B Curve – 63A – 6kA

IMO BR6B4063A 63A 4 pole miniature circuit breaker with B curve characteristic and 6 kA breaking capacity for industrial and commercial circuit protection.

SKU: BR6B4063AMPN: BR6B4063A
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Why Choose the IMO BR6B4063A Miniature Circuit Breaker?

The IMO BR6B4063A is a high-performance 63 A miniature circuit breaker (MCB) designed to protect low-voltage electrical installations against overloads and short circuits. As part of the IMO BR6 range, it provides dependable circuit protection for industrial control panels, commercial distribution boards and OEM electrical equipment.

This 4-pole MCB features a B curve tripping characteristic, making it ideal for circuits with low inrush currents such as lighting, resistive loads, instrumentation and control systems. Its 6 kA short-circuit breaking capacity ensures reliable fault protection while complying with IEC 60898-1.

Designed for standard DIN rail mounting, the BR6B4063A incorporates finger-safe IP20 terminals, a contact position indicator and compatibility with pin and fork type busbars. Its compact four-module design enables fast installation and efficient use of enclosure space.

Key Advantages

  • Reliable 63 A miniature circuit breaker for industrial and commercial applications.
  • 4-pole configuration for complete circuit isolation.
  • B curve characteristic suitable for low inrush current circuits.
  • 6 kA short-circuit breaking capacity.
  • DIN rail mounting for quick installation.
  • Manufactured in accordance with IEC 60898-1.

Key Features

  • IMO BR6 miniature circuit breaker.
  • 63 A rated current.
  • 4-pole configuration.
  • B curve tripping characteristic.
  • 6 kA breaking capacity.
  • Contact position indication window.
  • Central trip indication for fault identification.
  • Suitable for pin and fork type busbar connection.

Reliable Circuit Protection for Low-Voltage Installations

Miniature circuit breakers such as the IMO BR6B4063A automatically disconnect electrical circuits whenever overload or short-circuit conditions occur. This helps protect wiring, connected equipment and electrical installations while reducing downtime and improving operational safety.

Its B curve characteristic makes the BR6B4063A particularly suitable for lighting circuits, instrumentation, resistive loads and control systems where rapid fault clearance is required with minimal nuisance tripping.

Typical Applications

  • Industrial control panels.
  • Commercial distribution boards.
  • Lighting circuits.
  • Instrumentation and control systems.
  • OEM machinery.
  • General low-voltage electrical installations.

Technical Specifications

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Current 63 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 BR6B4063A
Product type Miniature circuit breaker
Rated current 63 A
Number of poles 4 pole
Trip characteristic B curve
Breaking capacity 6 kA
Rated voltage 230 / 400 V AC
Frequency 50 / 60 Hz
Standard IEC 60898-1
Mounting type DIN rail mounting
Protection rating IP20 terminals
Operating temperature -25 °C to +55 °C
Number of modules 4
HS Code 8536201090
Country of Manufacture China

Frequently Asked Questions

What is the IMO BR6B4063A used for?

The IMO BR6B4063A protects electrical circuits against overloads and short circuits in industrial, commercial and OEM electrical installations.

What current rating does this breaker have?

The breaker has a rated current of 63 A.

What does the B curve characteristic mean?

A B curve MCB is designed for circuits with low inrush currents, making it suitable for lighting, instrumentation and resistive electrical loads.

What is the short-circuit breaking capacity?

The IMO BR6B4063A provides a 6 kA short-circuit breaking capacity.

How is the breaker mounted?

The breaker is designed for standard DIN rail mounting inside electrical distribution boards and control panels.

Trusted by Electrical Engineers Worldwide

IMO miniature circuit breakers are trusted by electrical contractors, panel builders and OEM manufacturers for dependable circuit protection and reliable long-term performance.