MP220ST Miniature Circuit Breaker – Electrical Distribution Protection

The Siemens MP220ST Miniature Circuit Breaker is designed for residential and light commercial electrical distribution applications. It provides reliable circuit protection with a thermal magnetic trip mechanism, suitable for use in load center mains, feeders, and branch circuits. This 2-pole breaker supports a continuous current rating of 20 amperes and operates at 120/240 VAC, making it a key component for electrical distributors and switchgear suppliers focused on safe and efficient power management.

Specifications

• Manufacturer: Siemens
• Manufacturer Part #: MP220ST
• Current Rating: 20 amperes
• Number of Poles: 2
• Voltage Rating: 120/240 VAC
• Connection Type: Plug-In
• Interrupt Rating: 10 AIC
• Dimensions (HxWxD): 4 in x 4 in x 6 in
• Standard: UL 489
• Special Feature: Shunt Trip 120V
• Product Weight: 1.16 lbs

Features

• Thermal magnetic trip for precise circuit protection
• Plug-in mounting for easy installation and replacement
• Shunt trip capability for remote disconnection at 120V
• Compact design suitable for residential load centers
• UL 489 certified ensuring compliance with safety standards

Available Documents

• Data Sheet US2:MP220ST – PDF