ZINSCO QCAL-60F U 60A 240V 2-pole Molded Case Circuit Breaker QCAL60F

Description:

The Zinsco QCAL-60F U is a 60 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 that provides protection against overloads and short circuits. This breaker belongs to the QCAL (QC/QCAL series) and uses a plug-in (snap-in) mounting style for installation in compatible panels. 

Applications:

This breaker is commonly used in residential and light commercial electrical systems where a feed-through connection is required, such as supplying subpanels, split bus panels, or downstream distribution circuits. It is especially useful in older Zinsco panels where space or configuration requires a breaker that can both protect and distribute power simultaneously. Today, it is primarily used for maintenance or replacement in legacy systems rather than new installations.

Technical Specifications:

• Manufacturer: Zinsco / GTE Sylvania
• Model / Part Number: QCAL-60F U
• Product Type: Molded Case Circuit Breaker (Feed-Thru)
• Poles: 2-Pole
• Current Rating: 60 Amps
• Voltage Rating: 240 VAC
• Mounting: Plug-in / Snap-in (QCAL series)
• Trip Type: Thermal-magnetic
• Interrupt Rating: ~10 kAIC @ 240V (typical QC/QCAL class)
• Special Feature: Feed-thru terminals for downstream power distribution
• Phase: Single-phase
• Status: Obsolete / discontinued (commonly surplus or refurbished)

Common Replacements:

• Connecticut Electric UBIZ260 2-Pole 60A Zinsco Replacement Breaker
• Siemens Q260 2-Pole 60A Circuit Breaker
• Square D QO260 / HOM260 2-Pole 60A Circuit Breaker