20 Amp Single-Pole Thermal-Magnetic Circuit Breaker, Commercial Grade – UL 489 Listed

The 20 Amp Single-Pole Thermal-Magnetic Circuit Breaker provides overcurrent and short-circuit protection for branch circuits in commercial and government electrical distribution panels. The dual-element thermal-magnetic trip mechanism responds to both sustained overloads and instantaneous short-circuit faults, protecting wiring and connected equipment in accordance with NEC Article 240 requirements for commercial and institutional occupancies.

20A single-pole configuration. Thermal-magnetic trip mechanism for overload and short-circuit protection. UL 489 listed and CSA certified. Toggle-style actuator provides clear ON/OFF/TRIPPED indication. Designed for standard load center and distribution panel compatibility. Interrupting rating meets NEC requirements for commercial panel applications.

High-demand maintenance stock item for federal building engineers, GSA facility managers, military installation electricians, VA medical center maintenance departments, public housing authority maintenance teams, municipal building departments, and school district facilities staff. Required for panel board maintenance, circuit additions, and code-compliance upgrades in government-owned and leased buildings under NEC 2020 Article 240.

Prospect Industrial Supplies LLC (UEI: MA5HJB5E1ZR5, CAGE: 9WTY5) is a registered federal contractor. Available in single-unit and 5-unit quantities for P-card purchases and maintenance stock replenishment orders. Compliant with UL 489, NEC 2020 Article 240, and OSHA 29 CFR 1910.303 electrical safety standards.