Stop searching, install MROSupply Smart Check and see our price instantly wherever you browse.

Download Now

Add products to your shopping cart
Know When You’re Overpaying
The MROSupply Chrome Extension instantly alerts you when the part you're viewing is available for less at MROSupply.
Download Now
We never track your browsing or search history
We never sell your data to third parties
UMBW-4C3-40

Image for Illustration purposes only. Actual product may vary

WEG UMBW-4C3-40 MCB UL489 120/240V C 3P 40A Miniature CB

MODEL UMBW-4C3-40

BRAND

WEG

SKU

2852708

WEIGHT

1.000 lb

UOM

each

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

$75.15 Each

Prices are subject to change

FREE SHIPPING ON ORDERS OVER $100

Select Quantity

GET A QUOTE

Typically Ships in: 1 day

Returnable: See conditions

Max voltage

240 VAC / 125 VDC

Number of poles

3 poles

Rated current

40 A

Trip curve

C

Type

Thermal-magnetic

UL approval

UL489

Introducing the new WEG UMBW Series thermal-magnetic miniature circuit breakers. This new offering includes both UL489 and UL1077 approvals to provide a solution for circuit and equipment protection in industrial electrical equipment.

  • UL489 branch circuit protective device;
  • UL1077 equipment protection;
  • 17.5mm width per pole;
  • Visual status indication;
  • Positive trip-free snap action mechanism to ensure reliable switching;
  • Cuttable bus bar connecting system.

SKU: 1313760

Weg premium efficiency motors

MRO Supply Rocks - My motor shipped the next day, free shipping, and their price was the lowest that I could find. I will be pricing all our motors with them first.

Read more

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.

Read more

SKU: 1309979

Always easy to order, usually the best price!

Not our first order from MRO Supply. Will order again as the need arises.

Read more

SKU: 2853624

Happy customer

My first time using MRO . The fast delivery " free" was fantastic .. received exactly what ordered at a very reasonable price , making my customer happy..

Read more
Recently Viewed
#5902173
WEG UMBW-4C2-30 MINI CIRCUIT BREAKER
Brand WEG
Model UMBW-4C2-30
$50.89 Each
Free shipping
$0.60 Each
Free shipping
#6507997
$6.00 Each
Free shipping
#1403416
$21.03 Each
Free shipping
$3.95 Each
Free shipping
$61.91 Each
Free shipping
Reviews

SKU: 1313760

Weg premium efficiency motors

MRO Supply Rocks - My motor shipped the next day, free shipping, and their price was the lowest that I could find. I will be pricing all our motors with them first.

Read more

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.

Read more

SKU: 1309979

Always easy to order, usually the best price!

Not our first order from MRO Supply. Will order again as the need arises.

Read more

SKU: 2853624

Happy customer

My first time using MRO . The fast delivery " free" was fantastic .. received exactly what ordered at a very reasonable price , making my customer happy..

Read more

Return policy

Item must be unused.

Item must be in it&#;s original package.

Restocking, shipping and handling fees may apply to any return with this manufacturer.

For more information please consult 

​​​https://www.dropbox.com/s/atn13ff0575icuf/warranty%20and%20return%20policy.pdf?dl=0