Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

ZINSCO Bolt On Circuit Breaker: 90 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers - Zinsco Miniature Circuit Breakers
ZINSCOZinsco Miniature Circuit Breakers

ZINSCO Bolt On Circuit Breaker: 90 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers

The Zinsco UBIZ290B is a 90 A, 2-pole bolt-on miniature circuit breaker rated for 120/240V AC with a 10 kA interrupting capacity. Designed for Zinsco load centers, it measures 1.5 in wide and is part of the UBI series.

SKU 3G-OTH-725959

Brand
ZINSCO
Item
Bolt On Circuit Breaker: 90 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers
Category
Zinsco Miniature Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ZINSCO
Manufacturer Part Number
UBIZ290B
Type
10 kA, Zinsco Load Centers, UBI
Wd
1.5 in
AC
120/240V
Poles
2

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

ZINSCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Zinsco UBIZ290B is a 90 A, 2-pole bolt-on miniature circuit breaker rated for 120/240V AC with a 10 kA interrupting capacity. Designed for Zinsco load centers, it measures 1.5 in wide and is part of the UBI series.

Frequently Asked Questions

What is the Zinsco UBIZ290B bolt-on circuit breaker used for?

The Zinsco UBIZ290B is a 90 A, 2-pole miniature circuit breaker used for overcurrent protection in Zinsco load centers. It is rated 120/240V AC with a 10 kA interrupting capacity, making it suitable for residential and light commercial electrical distribution panels.

What are the specifications of the Zinsco UBIZ290B circuit breaker?

The UBIZ290B is a 90 A, 2-pole bolt-on breaker rated 120/240V AC with a 10 kA interrupting capacity. It is 1.5 in wide, part of the UBI series, and designed for Zinsco load centers. The manufacturer part number is UBIZ290B.

Where to buy the Zinsco UBIZ290B circuit breaker worldwide?

3G Electric supplies the Zinsco UBIZ290B bolt-on circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this 90 A, 2-pole breaker for Zinsco load centers.

How to install the Zinsco UBIZ290B bolt-on circuit breaker?

Install the UBIZ290B by ensuring the panel is de-energized, then bolt the breaker securely onto the Zinsco load center bus bar. Torque terminals to manufacturer specifications for the 90 A, 120/240V AC circuit. Always follow local electrical codes and use appropriate personal protective equipment.

ZINSCO Products

3G Electric supplies ZINSCO zinsco miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from ZINSCO

View all ZINSCO parts
Miniature Circuit Breaker: 40 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ40)
ZINSCO
Miniature Circuit Breaker: 40 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ40)
Bolt On Circuit Breaker: 100 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers, UBI (MPN UBIZ2100B)
ZINSCO
Bolt On Circuit Breaker: 100 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers, UBI (MPN UBIZ2100B)
Bolt On Circuit Breaker: 20 A Amps, 120V AC, 0.75 in Wd, 10 kA, Zinsco Load Centers, UBI, 1 Poles (MPN UBIZ20B)
ZINSCO
Bolt On Circuit Breaker: 20 A Amps, 120V AC, 0.75 in Wd, 10 kA, Zinsco Load Centers, UBI, 1 Poles (MPN UBIZ20B)
Miniature Circuit Breaker: 15 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ15)
ZINSCO
Miniature Circuit Breaker: 15 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ15)
Miniature Circuit Breaker: 150 A Amps, 120/240V AC, 3 in Wd, 10kA at 120/240V AC, UBITBFP, 2 Poles (MPN UBITBFP1502)
ZINSCO
Miniature Circuit Breaker: 150 A Amps, 120/240V AC, 3 in Wd, 10kA at 120/240V AC, UBITBFP, 2 Poles (MPN UBITBFP1502)
Miniature Circuit Breaker: 50 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ50)
ZINSCO
Miniature Circuit Breaker: 50 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ50)
Miniature Circuit Breaker: 30 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ30)
ZINSCO
Miniature Circuit Breaker: 30 A Amps, 120V AC, 0.75 in Wd, 10kA at 120V AC, Zinsco Load Centers (MPN UBIZ30)
Bolt On Circuit Breaker: 60 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers, UBI, 2 Poles (MPN UBIZ260B)
ZINSCO
Bolt On Circuit Breaker: 60 A Amps, 120/240V AC, 1.5 in Wd, 10 kA, Zinsco Load Centers, UBI, 2 Poles (MPN UBIZ260B)