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The EATON siemens-q120 is a single-pole, plug-in circuit breaker rated at 20 amps, designed for use in load centers and panelboards in both residential and light commercial electrical systems. This Type QP plug-in breaker provides overcurrent and short-circuit protection for branch circuits. It installs directly into compatible plug-in style panels without requiring tools beyond standard hand tools. Licensed electricians install this breaker during new construction, panel upgrades, or circuit replacement work. The 20-amp single-pole configuration is a common rating for standard branch circuits serving lighting, outlets, and small appliances.
This breaker is suited for residential panelboards and light commercial load centers where a plug-in style, single-pole breaker is required. It is appropriate for branch circuit protection in applications such as general-purpose 120-volt circuits. Both new construction and retrofit replacement scenarios apply. The Type QP design is a widely used format in residential distribution equipment, making this a practical replacement or expansion option for qualified electrical contractors and licensed electricians.
Designed as an OEM-style plug-in replacement circuit breaker for compatible residential and light commercial panelboards accepting Type QP single-pole plug-in breakers.
Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the panel by opening the main breaker and verify the bus bars are de-energized with a non-contact voltage tester before handling any breakers or wiring. Seat the breaker firmly into the bus bar slot until it clicks into place and secure the load wire to the breaker terminal per the panel manufacturer torque requirements. Always inspect the panel enclosure for damage or signs of overheating before completing installation.
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