imo b10b2040adc dc mcb 10ka, b curve 2 pole, 40 amp

Why Choose the IMO B10B2040ADC DC Miniature Circuit Breaker?

The IMO B10B2040ADC is a robust and dependable DC miniature circuit breaker (MCB) designed to protect direct current electrical circuits against overloads and short circuits. As part of the IMO B10 DC circuit protection range, it is engineered for reliable performance in industrial control panels, automation systems and DC power distribution applications.

This MCB features a B curve tripping characteristic, making it suitable for circuits where lower inrush currents are expected and fast disconnection is required under fault conditions. Its 10 kA short circuit breaking capacity provides strong fault protection for demanding DC installations, helping protect wiring, equipment and connected devices.

With a 40 A current rating and a 2 pole configuration, the B10B2040ADC is suitable for DC circuits requiring two-pole isolation and protection. Its compact DIN rail mounting format allows quick and secure installation inside electrical enclosures, machinery panels and renewable energy control systems.

Key Advantages

• Reliable DC miniature circuit breaker for industrial circuit protection.
• 40 A rated current for DC distribution and control circuits.
• B curve tripping characteristic for fast response to fault conditions.
• 10 kA short circuit breaking capacity for dependable protection.
• 2 pole configuration for DC circuit isolation.
• Compact DIN rail design for straightforward panel installation.

Key Features

• IMO B10 DC miniature circuit breaker series.
• 40 A rated current.
• B curve protection.
• 10 kA breaking capacity.
• 2 pole construction.
• Suitable for DC circuit protection applications.
• Finger protected connection terminals.
• DIN rail mounting for compact installation.

Technical Specifications

• Manufacturer: IMO
• Series: B10 DC
• Model: B10B2040ADC
• Product type: DC miniature circuit breaker
• Rated current: 40 A
• Tripping characteristic: B Curve
• Breaking capacity: 10 kA
• Number of poles: 2 Pole
• Rated operational voltage: up to 500 V DC
• Rated impulse withstand voltage: 6.2 kV
• Protection degree: IP20
• Mounting type: DIN rail
• Terminal capacity: up to 35 mm²
• Standards: IEC 60947-2 / IEC 14048.2

Reliable Protection for DC Electrical Systems

DC miniature circuit breakers such as the IMO B10B2040ADC are designed to automatically disconnect a direct current circuit when an overload or short circuit occurs. This helps protect cables, connected equipment and electrical components from damage caused by excessive current.

The 2 pole DC design allows effective isolation in DC systems, making it suitable for control panels, battery circuits, power supplies and renewable energy applications. Its high breaking capacity and compact DIN rail footprint make it a practical choice for panel builders and electrical engineers working with direct current installations.

Typical Applications

• DC control panels and automation systems.
• Battery and power supply circuits.
• Renewable energy and photovoltaic control systems.
• Industrial machinery with DC auxiliary circuits.
• Telecommunications and UPS systems.
• Panel building, maintenance and electrical installation work.

Trusted by Panel Builders and Electrical Engineers

IMO DC miniature circuit breakers are widely used by panel builders, maintenance engineers and electrical installers who require compact, reliable and easy-to-install protection for direct current electrical systems.