Zinsco
Zinsco UBIZ220 2-pole 20 A 120/240 V plug-in fuse
Two-pole 20 A plug-in breaker rated 120/240 V AC with 10 kA interrupting capacity for Zinsco load centres
- 2-pole protection for 120/240 V circuits
- 20 A rating matches standard branch-circuit loads
- 10 kA interrupting capacity clears faults safely
- Plug-in mounting fits Zinsco ML12 load centres
- Compact 4.8 in frame saves panel space
Zinsco UBIZ220 2-pole breaker
The Zinsco UBIZ220 is a 2-pole plug-in circuit breaker rated at 20 A for 120/240 V AC systems. It fits Zinsco ML12 load centres and uses a toggle actuator for manual switching. The unit carries a 10 kA interrupting rating at 120/240 V AC and is built on a 125 A HACR frame. It is intended for residential or light-commercial branch-circuit protection.
Practical limits of the standard
The breaker is rated for single-phase AC only and has no DC voltage rating. Its maximum interrupting capacity is 10 kA at 120/240 V AC, so it must not be applied on systems with higher available fault current. The plug-in mounting style restricts use to compatible Zinsco panelboards. Operating temperature minimum is 0 °F.
Build quality and daily implications
Lug terminals accept standard wire connections for secure installation. The compact body measures 4.8 in long, 1.5 in wide and 2.5 in deep, allowing dense placement in the load centre. Plug-in mounting enables quick replacement without rewiring the panel bus. The toggle handle provides clear on/off indication for routine maintenance.
Highlights
- 2-pole protection for 120/240 V circuits
- 20 A rating matches standard branch-circuit loads
- 10 kA interrupting capacity clears faults safely
- Plug-in mounting fits Zinsco ML12 load centres
- Compact 4.8 in frame saves panel space
Specifications
| Brand | ZINSCO |
|---|
Questions about this item
Which amperage version should I pick for a 20 A circuit?
The UBIZ220 is a 20 A breaker; select this exact rating to match the circuit you are protecting.
What does the 10 kA rating mean once the breaker is installed?
It indicates the breaker can safely interrupt up to 10 000 amps of fault current at 120/240 V AC.
What does the plug-in mounting style cap in practice?
Plug-in mounting limits use to Zinsco ML12 series load centers that accept plug-in breakers.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
