ZINSCO,R-38-20,TANDEM BREAKER 20A 120 240V 2P

Description:

The Zinsco R-38-20 is a tandem circuit breaker designed for residential and light commercial electrical distribution systems. It provides overcurrent protection for circuits operating at 120/240V and allows two circuits to be installed in a single breaker slot, maximizing panel space. Commonly used in Zinsco panelboards, it helps protect wiring and connected equipment from overloads and short circuits. Electricians use this breaker for circuit protection, panel upgrades, and replacement of legacy Zinsco components.

Applications:

The Zinsco tandem circuit breakers are commonly used in residential and light commercial electrical panels where space-saving circuit protection is required. Typical applications include branch circuit protection, panelboard upgrades, and distribution systems where multiple circuits need to be installed within limited panel space while maintaining reliable overcurrent protection.

Technical Specifications:

• Manufacturer Part Number (MPN): R-38-20
• Brand: Zinsco
• Product Type: Tandem Circuit Breaker
• Amperage: 20A
• Voltage Rating: 120/240V
• Poles: 2-Pole (tandem configuration)
• Mounting Type: Plug-in (panel mount)
• Application: Overcurrent protection for branch circuits
• Compatibility: Zinsco panelboards
• Trip Type: Thermal-magnetic
• Status: Discontinued / legacy equipment

Common Replacements:

• Connecticut Electric UBIZ220
• Siemens Q2020 (non-direct fit, panel dependent)
• Eaton BR2020 (panel dependent)