UB10D3020A IMO 10kA UL489 MCB 3 pole 20A D Curve

UB10D3020A IMO 10kA UL489 MCB 3 pole 20A D Curve

SKU: UB10D3020AMPN: UB10D3020A
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Why Choose the IMO UB10D3020A Miniature Circuit Breaker?

The IMO UB10D3020A is a dependable UL489 miniature circuit breaker (MCB) designed to protect industrial and commercial electrical circuits against overloads and short circuits. Manufactured by IMO Precision Controls, this compact protective device is suitable for machinery, control panels and electrical distribution systems where reliable three-phase circuit protection is required.

Featuring a 3-pole configuration, a 20 A rated current and a D curve tripping characteristic, the UB10D3020A is particularly well suited to circuits supplying motors, transformers, solenoids and other inductive equipment. The D curve characteristic accommodates the temporary high inrush currents commonly produced when this type of equipment starts.

With a 10 kA short circuit breaking capacity, the UB10D3020A provides effective fault interruption in demanding industrial environments. Its compact modular format and standard DIN rail mounting make it easy to incorporate into new control panels or use when maintaining existing electrical installations.

Key Advantages

  • Reliable UL489 miniature circuit breaker for industrial circuit protection.
  • 20 A rated current for machinery and electrical distribution applications.
  • D curve tripping characteristic suitable for loads with high starting currents.
  • 3-pole configuration for three-phase circuits.
  • 10 kA breaking capacity for dependable short circuit protection.
  • Compact DIN rail design simplifies installation and panel maintenance.

Key Features

  • IMO Precision Controls UB10 series.
  • 20 A rated current.
  • D curve thermal-magnetic trip characteristic.
  • 3-pole miniature circuit breaker.
  • 10 kA short circuit breaking capacity.
  • UL489 circuit breaker design.
  • Compact modular construction for space-efficient panels.
  • Standard DIN rail mounting.

Reliable Protection for Industrial Electrical Systems

Miniature circuit breakers automatically disconnect an electrical circuit when an overload or short circuit is detected. The thermal element responds to sustained overcurrent conditions, while the magnetic element provides rapid operation during severe short circuit faults. This helps protect cables, machinery and connected electrical equipment from damage.

The D curve characteristic of the IMO UB10D3020A permits higher temporary starting currents before magnetic tripping occurs. This makes the breaker suitable for industrial loads that require significant current during start-up while retaining dependable protection against genuine electrical faults.

Typical Applications

  • Three-phase motor circuits.
  • Industrial control panels.
  • Transformers and inductive loads.
  • Machine building and OEM equipment.
  • Factory automation systems.
  • Commercial and industrial distribution boards.

Technical Specifications

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Certification UL 489
Current 20 A
Phase Three Phase
Poles 3-pole
Device Type MCB
Trip Curve D curve
Breaking Capacity 10 kA
Manufacturer IMO Precision Controls
Series UB10 UL489 Miniature Circuit Breakers
Model UB10D3020A
Product type UL489 miniature circuit breaker
Rated current 20 A
Number of poles 3
Trip characteristic D Curve
Short circuit breaking capacity 10 kA
Trip mechanism Thermal-magnetic
Mounting type DIN rail mounting
Application Industrial and commercial circuit protection
Suitable loads Motors, transformers and inductive equipment
Installation location Control panels and distribution boards
Protection function Overload and short circuit protection
HS Code 8536201090
Country of Manufacture India

Frequently Asked Questions

What is the IMO UB10D3020A used for?

The UB10D3020A protects three-phase electrical circuits against overloads and short circuits in industrial machinery, automation equipment and distribution systems.

What is the rated current of the UB10D3020A?

The circuit breaker has a rated current of 20 A.

What does the D curve characteristic mean?

A D curve circuit breaker accommodates higher temporary inrush currents before magnetic tripping, making it suitable for motors, transformers and other inductive loads.

How many poles does this circuit breaker have?

The IMO UB10D3020A has a 3-pole configuration intended for three-phase electrical circuits.

What is the breaking capacity of the UB10D3020A?

The breaker has a 10 kA short circuit breaking capacity, providing dependable fault protection for demanding industrial installations.

Trusted by Electrical Professionals Worldwide

IMO Precision Controls circuit protection products are widely used by electrical engineers, machine builders and panel manufacturers to provide reliable overload and short circuit protection in demanding industrial applications.