UB10C1040A IMO 10kA UL489 MCB 1 pole 40A C Curve

UB10C1040A IMO 10kA UL489 MCB 1 pole 40A C Curve

SKU: UB10C1040AMPN: UB10C1040A
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Why Choose the IMO UB10C1040A Miniature Circuit Breaker?

The IMO UB10C1040A is a compact UL 489 miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. Part of the IMO UB10 circuit breaker series, it provides dependable branch circuit protection for industrial machinery, automation equipment, control panels and electrical distribution systems.

Featuring a 40 A rated current, a C curve trip characteristic and a 10 kA short-circuit interrupting capacity, the UB10C1040A is suitable for circuits containing equipment with moderate starting currents. Typical connected loads can include motors, transformers, solenoids, power supplies and industrial control equipment.

The UB10C1040A combines thermal overload protection with magnetic short-circuit protection to provide effective fault isolation. Its compact single-pole construction and DIN rail mounting format support straightforward installation inside machinery panels, distribution boards and industrial electrical enclosures.

Key Advantages

  • Compact UL 489 miniature circuit breaker for branch circuit protection.
  • 40 A rated current for higher-current industrial circuits.
  • C curve trip characteristic suitable for moderate inrush currents.
  • 10 kA interrupting capacity for dependable short-circuit protection.
  • Thermal-magnetic operation protects against overloads and electrical faults.
  • DIN rail mounting enables efficient installation within electrical panels.

Key Features

  • IMO UB10 circuit breaker series.
  • 40 A rated current.
  • Single-pole (1P) configuration.
  • C curve tripping characteristic.
  • 10 kA short-circuit interrupting capacity.
  • UL 489 branch circuit protection.
  • Fixed thermal and magnetic trip mechanisms.
  • Compact design for standard DIN rail installation.

Reliable Circuit Protection for Industrial Installations

Miniature circuit breakers automatically disconnect electrical circuits when excessive current is detected. The thermal trip mechanism responds to sustained overload conditions, while the magnetic mechanism provides rapid disconnection during high-current short circuits. This combined protection helps prevent damage to wiring, machinery and connected electrical equipment.

The IMO UB10 range is designed for machine builders, panel manufacturers and electrical engineers requiring compact and dependable circuit protection. The C curve operating characteristic allows the breaker to accommodate moderate start-up currents while maintaining effective overload and short-circuit protection.

Typical Applications

  • Industrial machinery and control panels.
  • Motor control and starter circuits.
  • Transformers, solenoids and power supplies.
  • Automation and PLC equipment.
  • Commercial electrical distribution boards.
  • OEM machinery and production systems.

Technical Specifications

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Certification UL 489
Current 40 A
Phase Single Phase
Poles 1-pole
Device Type MCB
Trip Curve C curve
Manufacturer IMO Precision Controls
Series UB10
Model UB10C1040A
Product type Miniature circuit breaker (MCB)
Rated current 40 A
Number of poles 1 pole
Trip characteristic C curve
Short-circuit interrupting capacity 10 kA
Trip mechanism Fixed thermal / fixed magnetic
Mounting type DIN rail
Utilisation Branch circuit protection
Applicable standard UL 489
HS Code 8536201090
Country of Manufacture India

Frequently Asked Questions

What is the IMO UB10C1040A used for?

The UB10C1040A protects electrical circuits, wiring and connected equipment against overloads and short circuits in industrial and commercial applications.

What is the current rating of the UB10C1040A?

The circuit breaker has a rated current of 40 A.

What does the C curve trip characteristic mean?

A C curve circuit breaker can tolerate moderate start-up currents while providing reliable overload and short-circuit protection.

What is the interrupting capacity of this circuit breaker?

The UB10C1040A has a 10 kA short-circuit interrupting capacity.

How is the IMO UB10C1040A installed?

The circuit breaker is designed for DIN rail installation inside an electrical control panel, machinery enclosure or distribution board.

Designed for Industrial Electrical Professionals

IMO UB10 circuit breakers provide compact thermal-magnetic protection for panel builders, machine manufacturers and electrical engineers working with industrial machinery, automation systems and branch circuits.