ZINSCO QC220 CIRCUIT BREAKER 20A 120 240V 2-pole Molded Case Circuit Breaker

Description:

The Zinsco QC220 is a 20 Amp, 2-pole molded case circuit breaker designed for use in Zinsco / GTE Sylvania load centers. It operates on 120/240V systems and features a thermal-magnetic trip mechanism that provides protection against overloads and short circuits. This breaker belongs to the QC series and typically uses a plug-in (snap-in) mounting style for installation in compatible Zinsco panels.

Applications:

The Zinsco QC220 breaker is commonly used in residential and light commercial electrical systems for 240V branch circuits such as small air conditioning units, water heaters, pumps, and other equipment requiring 20A protection. It is specifically intended for Zinsco panels found in older installations and is mainly used today for maintenance or replacement of existing systems. 

Technical Specifications:

• Manufacturer: Zinsco / GTE Sylvania
• Model / Part Number: QC220
• Product Type: Molded Case Circuit Breaker
• Poles: 2-Pole
• Current Rating: 20 Amps
• Voltage Rating: 120/240 VAC
• Phase: Single-phase
• Mounting: Plug-in / Snap-in
• Trip Type: Thermal-magnetic
• Interrupt Rating: ~10 kAIC @ 120/240V
• Function: Overcurrent and short circuit protection
• Status: Obsolete / discontinued (surplus or aftermarket replacements available)

Common Replacements:

• Connecticut Electric UBIZ220 2-Pole 20A Zinsco Replacement Breaker
• Siemens Q220 2-Pole 20A Circuit Breaker
• Square D QO220 2-Pole 20A Circuit Breaker