ZINSCO Q-30 N 30A 120V 1P 10K Circuit Breaker Q30

Description:

The Zinsco Q-30 N is a 30 Amp, 1-pole circuit breaker used in legacy Zinsco and Sylvania load centers to provide overcurrent protection for 120V circuits. It is part of the Type Q series (Magnatrip design) and is commonly installed in residential panels for branch circuits such as outlets, appliances, and small equipment.

Applications:

The Zinsco Q-30 breaker is widely used in residential electrical systems for medium-load circuits like kitchen outlets, air conditioners, and general-purpose receptacles. It is designed specifically for Zinsco panelboards, where it plugs directly into the bus. These breakers are now obsolete, typically available as surplus or refurbished units.

Technical Specifications:

• Manufacturer: Zinsco / GTE Sylvania / Challenger
• Model / Part Number: Q-30 / Q30N
• Product Type: Circuit Breaker
• Poles: 1-Pole
• Current Rating: 30 Amps
• Voltage Rating: 120/240 VAC
• Interrupt Rating: ~10 kAIC
• Mounting: Plug-in
• Trip Type: Thermal-magnetic (Magnatrip)
• Compatibility: Zinsco / Sylvania load centers
• Status: Obsolete / discontinued

Common Replacements:

• GE THQP130 1‑Pole 30A Circuit Breaker
• Square D QHB130 1‑Pole 30A Breaker
• Connecticut Electric UBIZ30 Zinsco Replacement Breaker