US10D2050A IMO 10kA UL1077 MCB 2 pole 50A D Curve

Q: What is the current rating of this circuit breaker?

This model has a 50 A rated current.

SKU: US10D2050AMPN: US10D2050A

List Price £24.01 ex VAT

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£18.09 25% OFF

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Manufacturer Lead Time

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Why Choose the IMO US10D2050A UL1077 Miniature Circuit Breaker?

The IMO US10D2050A is a high-performance UL1077 supplementary protector miniature circuit breaker (MCB) designed to provide dependable overcurrent protection for industrial control panels, automation equipment and electrical machinery. Manufactured by IMO Precision Controls, this robust device delivers reliable circuit protection for OEMs, panel builders and industrial maintenance professionals.

Designed for demanding industrial environments, the US10D2050A combines a compact DIN rail mounting format with dependable tripping characteristics to protect electrical circuits against overloads and short circuits. Its D Curve trip characteristic makes it particularly suitable for circuits with high inrush currents, including motors, transformers and inductive loads.

Featuring a 50 A current rating, 2-pole configuration and a 10 kA short-circuit breaking capacity, the IMO US10D2050A is ideal for industrial control cabinets, machinery, automation systems and OEM electrical panels requiring UL1077 supplementary protection.

Key Advantages

Reliable UL1077 supplementary protector for industrial applications.
50 A rated current for higher current industrial circuits.
D Curve tripping characteristic ideal for inductive loads and motor starting currents.
2-pole protection for enhanced circuit safety.
10 kA interrupting capacity for dependable fault protection.
Compact DIN rail mounting simplifies installation in electrical panels.

Key Features

IMO Precision Controls supplementary protector series.
50 A rated current.
2-pole design.
D Curve trip characteristic.
10 kA breaking capacity.
Suitable for UL1077 supplementary protection.
DIN rail mounting to EN 60715.
Compact industrial enclosure with IP20 protection.

Reliable Protection for Industrial Control Circuits

The IMO US10D2050A is engineered to provide dependable supplementary protection for industrial electrical circuits. Its D Curve characteristic enables reliable operation on circuits with higher inrush currents while maintaining rapid protection against overloads and short-circuit faults.

Designed for installation in automation panels, machinery and OEM equipment, the compact DIN rail format allows quick installation while helping maximise available panel space.

Typical Applications

Industrial control panels.
Machine building and OEM equipment.
Motor control circuits.
Automation systems.
Electrical distribution panels.
Industrial machinery and process equipment.

Technical Specifications

Current	50 A
Manufacturer	IMO Precision Controls
Series	US10 UL1077 Supplementary Protectors
Model	US10D2050A
Product type	UL1077 miniature circuit breaker (supplementary protector)
Rated current	50 A
Number of poles	2
Trip characteristic	D Curve
Breaking capacity	10 kA
Rated frequency	50 / 60 Hz
Mounting type	DIN rail mounting
Protection rating	IP20
Operating temperature	-25°C to +55°C
Terminal capacity	Up to 35 mm² solid conductor
Standards	UL1077
HS Code	8536201090
Country of Manufacture	India
Poles	2-pole
Device Type	MCB
Trip Curve	D curve
Breaking Capacity	10 kA

Frequently Asked Questions

What is the IMO US10D2050A used for?

The US10D2050A is a UL1077 supplementary protector designed to protect industrial control circuits from overloads and short circuits.

What is the current rating of this circuit breaker?

This model has a 50 A rated current.

What does the D Curve trip characteristic mean?

D Curve breakers are designed for circuits with higher inrush currents, making them suitable for motors, transformers and other inductive loads.

How is the US10D2050A installed?

The breaker mounts directly onto a standard DIN rail inside industrial electrical control panels and distribution enclosures.

What industries commonly use this product?

It is widely used in industrial automation, OEM machinery, manufacturing plants, electrical control panels and process control applications.

Trusted by Industrial Panel Builders

IMO Precision Controls circuit protection products are trusted by OEMs, panel builders and industrial engineers worldwide for delivering dependable protection, straightforward installation and long-term reliability in demanding automation environments.

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Lead time on request

Please contact us for a delivery time before you order

Standard delivery

£8 ex VAT · free over £200

UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.

Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

Collect from our showroom

Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

Priced at checkout

We deliver to Northern Ireland, the Republic of Ireland and overseas.

Delivery is calculated at checkout based on your destination.

Orders with mixed availability

Shipped complete

If part of your order is on a lead time, we hold it and send everything together.

Need the in-stock items sooner? Ask us and we can split the delivery.

Business customer returns

Returns & order support

Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

Stocked items

Request within 30 days

Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

Manufacturer approval needed

Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

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Let’s get your return sorted.

Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.

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