ZINSCO QCAL-15 U 15A 240V 2-pole Molded Case Circuit Breaker QCAL15

Description:

The Zinsco QCAL-15 U is a 15 Amp, 2-pole molded case circuit breaker designed for use in Zinsco / GTE Sylvania load centers. It operates on 240V systems and features a thermal-magnetic trip mechanism to protect circuits from overloads and short circuits. This breaker belongs to the QCAL (QC/QCAL series) and typically uses a plug-in (snap-in) mounting style for installation in compatible panels. It is part of a discontinued product line and is now mainly available as surplus or refurbished units.

Applications:

The Zinsco QCAL-15 breaker is commonly used in residential and light commercial electrical systems for 240V branch circuits such as small HVAC units, pumps, water heaters, and dedicated appliance loads requiring 15A protection. It is specifically intended for legacy Zinsco panels still in service and is typically used today for maintenance or replacement rather than new installations. 

Technical Specifications:

• Manufacturer: Zinsco / GTE Sylvania
• Model / Part Number: QCAL-15 U / QCAL-15N
• Product Type: Molded Case Circuit Breaker
• Poles: 2-Pole
• Current Rating: 15 Amps
• Voltage Rating: 240 VAC
• Mounting: Plug-in / Snap-in (QC/QCAL series)
• Trip Type: Thermal-magnetic
• Interrupt Rating: ~10 kAIC @ 240V
• Function: Overcurrent and short circuit protection
• Status: Obsolete / discontinued

Common Replacements:

• Connecticut Electric UBIZ215 2-Pole 15A Zinsco Replacement Breaker
• Siemens Q215 2-Pole 15A Circuit Breaker
• Square D QO215 2-Pole 15A Circuit Breaker