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WEG UMBW-4D1-1 is a miniature circuit breaker (MCB) from the UMBW series, rated for 1 ampere at 277VAC/60VDC. This single-pole breaker features a D-type trip curve for applications with high inrush currents, such as small transformers or motors. It provides reliable overload and short-circuit protection in control panels, machinery, and lighting circuits, designed for DIN rail mounting and compliance with international standards.

MODEL UMBW-4D1-1

BRAND

WEG

SKU

2524538

WEIGHT

0.300 lb

UOM

each

Contact supplier for technical support on: 800-ASK-4WEG

$31.80 Each

Prices are subject to change

FREE SHIPPING ON ORDERS OVER $100

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Typically Ships in: 1 day

Returnable: See conditions

Max voltage

277 VAC

Number of poles

1 pole

Rated current

1 A

Trip curve

Type

Thermal-magnetic

UL approval

UL489

UL approval	UL489
Trip curve	D
Number of poles	1 pole
Rated current	1 A
Maximum voltage	277 VAC
Type	Thermal-magnetic

SKU: 5739627

Pricing

Competitive price

SKU: 2520103

Thanks, olha!

Olha, unlike the other service reps, actually got this order completed. If it wasn't for her, I would never spend another dime with your company, after what happened to my last order.

SKU: 2519509

Review of motor purchase

Excellent response to online ordering with the lowest price found on the net. Part supplied as advertised with quick shipment. Very satisfied with the first-time purchase from MRO Supply.

SKU: 1312213

Great service and motor

This company rocks!!! They have done everything right by offering the best price and then delivering the product on time

When will I be charged for my order?

Do you provide credit terms?

Can I get a discounted price? I am a reseller / government entity.

What is the return/warranty policy?

Can it be shipped today?

Does “Usually ships in 24 hours” mean it’s in stock?

Read full FAQ

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Reviews

SKU: 5739627

Pricing

Competitive price

SKU: 2520103

Thanks, olha!

Olha, unlike the other service reps, actually got this order completed. If it wasn't for her, I would never spend another dime with your company, after what happened to my last order.

SKU: 2519509

Review of motor purchase

Excellent response to online ordering with the lowest price found on the net. Part supplied as advertised with quick shipment. Very satisfied with the first-time purchase from MRO Supply.

SKU: 1312213

Great service and motor

This company rocks!!! They have done everything right by offering the best price and then delivering the product on time

Return policy