Image for Illustration purposes only. Actual product may vary

View in markdown

Weg UMBW-4D2-40 2-pole miniature circuit breaker rated 40A at 277/480VAC with D-curve thermal-magnetic trip. UL489 listed for branch circuit protection in industrial control panels and distribution equipment. Compact DIN rail mount design provides overcurrent and short-circuit protection.

MODEL UMBW-4D2-40

BRAND

WEG

SKU

2852623

WEIGHT

0.700 lb

UOM

each

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

$50.89 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

277/480 VAC / 125 VDC

Number of poles

2 poles

Rated current

40 A

Trip curve

Type

Thermal-magnetic

UL approval

UL489

UL approval	UL489
Trip curve	D
Number of poles	2 poles
Rated current	40 A
Maximum voltage	277/480 VAC / 125 VDC
Type	Thermal-magnetic

SKU: 1309979

Always easy to order, usually the best price!

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

SKU: 1315094

Compressor motor

Excellent packaging seems to run smooth easy installation

SKU: 6377159

Very pleased

Easy to order, fast delivery, great price and unit works great. couldn't be more pleased with this purchase.

SKU: 2521370

Centrifugal switch

Absolutely what I expected in much less time than I expected! Will definitely order again.

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

Recently Viewed

#264606

Martin 6018 1 1/2 coupling hub half for #60 roller chain (3/4" pitch) with 18 teeth and 4.460" outside diameter. 1-1/2" finished bore for secure shaft mounting. Steel construction for durability in chain coupling applications.

Brand	Martin Sprocket
Model	6018 1 1/2

$77.47 Each

Free shipping

#2208308

Reelcraft DP5450 OLP Series DP5000 compact dual pedestal hose reel with 1/4" I.D. × 50 ft hose, 300 psi pressure rating. Features 1/2" NPT(F) inlet and 3/8" NPT(F) outlet. Open low-pressure design for air and water applications. Made in USA.

Brand	Reelcraft
Model	DP5450 OLP

$530.49 Each

Free Shipping orders over $100

#2008746

Jason Industrial 9T5/225 T-Series Timing Belt with T5 (5 mm) pitch, 9 mm width, 225 mm pitch length, and 45 teeth. Neoprene body with fiberglass tension cords and nylon tooth facing for positive-engagement industrial drives.

Brand	Jason Industrial
Model	9T5/225

$9.22 Each

Free shipping

#6490067

US Motors D12CPA2PH9 1/2 HP 1800 RPM 56H frame Open Drip Proof general purpose motor, 115/230V single-phase 60 Hz. Designed for indoor industrial applications requiring reliable performance in clean, dry environments. ODP enclosure provides protection against dripping water while allowing cooling airflow.

Brand	US Motors
Model	D12CPA2PH9

$346.71 Each

Free Shipping orders over $100

#1312139

Weg 00156ET3ER143TC-W22 1.5HP 3600RPM NEMA Premium efficiency three-phase TEFC motor with 143TC C-face mount and 208-230/460V 60Hz power. W22 cast iron construction with IP55 enclosure, Class F insulation, and 1.15 service factor. Inverter duty rated 20:1 constant torque for demanding industrial applications.

Brand	WEG
Model	00156ET3ER143TC-W22

$544.28 Each

Free Shipping orders over $100

#258095

Martin W808M22-SK High HP HTS synchronous sprocket, 8MM pitch, 80 teeth, steel construction. Requires SK Quick Disconnect bushing (sold separately). Designed for high horsepower synchronous drive applications with 8MM pitch timing belts.

Brand	Martin Sprocket
Model	W808M22-SK

$432.01 Each

Free Shipping orders over $100

#5738642

Allen-Bradley 2711P-T15C4D8 PanelView Plus 6 graphic terminal with 15-inch color touchscreen and high-brightness display for industrial operator interface. Bulletin 2711P HMI integrates with Logix controllers via EtherNet/IP for machine-level visualization and control.

Brand	Allen Bradley
Model	2711P-T15C4D8

$9,646.00 Each

Free Shipping orders over $100

#283345

NTN 48290 inch series single row tapered roller bearing with straight bore. Designed for combined radial and axial loads in industrial gearboxes, vehicle hubs, and heavy machinery. Unsealed design with stamped steel cage.

Brand	NTN Bearing
Model	48290

$243.40 Each

Free Shipping orders over $100

Reviews

SKU: 1309979

Always easy to order, usually the best price!

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

SKU: 1315094

Compressor motor

Excellent packaging seems to run smooth easy installation

SKU: 6377159

Very pleased

Easy to order, fast delivery, great price and unit works great. couldn't be more pleased with this purchase.

SKU: 2521370

Centrifugal switch

Absolutely what I expected in much less time than I expected! Will definitely order again.

Weg UMBW-4D2-40 2-pole miniature circuit breaker rated 40A at 277/480VAC with D-curve thermal-magnetic trip. UL489 listed for branch circuit protection in industrial control panels and distribution equipment. Compact DIN rail mount design provides overcurrent and short-circuit protection.

Return policy