ZINSCO UQFB-150 N 150A 2P 240V

Description:

The Zinsco UQFB-150 N is a molded case circuit breaker designed for use in Zinsco/Milbank load centers, providing overcurrent protection for high-capacity 120/240V electrical systems. It functions as a main or feeder breaker, disconnecting power during overloads or short circuits to protect wiring and equipment. This breaker is commonly used in legacy panel systems where high-amperage protection is required.

Applications:

The Zinsco UQFB-150 breaker is used in residential and light commercial electrical systems as a main disconnect or large feeder breaker. It is typically installed in service panels, meter/main combinations, or subpanels supplying large loads such as entire homes, commercial circuits, or distribution panels.

Technical Specifications:

• Manufacturer Part Number (MPN): UQFB-150
• Product Type: Molded Case Circuit Breaker (Main / Feeder)
• Poles: 2-pole
• Rated Current: 150 Amps
• Rated Voltage: 120/240 V AC
• Phase: Single-phase
• Mounting Type: Bolt-on / clip-on (panel dependent)
• Trip Type: Thermal-magnetic
• Interrupt Rating: ~10 kAIC @ 240V
• Application: Main breaker or feeder protection for high-load circuits

Common Replacements:

• Zinsco QFB150 2-pole breaker
• Connecticut Electric UBITBFP1502 replacement
• Siemens QS2150H 150A breaker