20A 1-POLE TM BRKR – Product Description
🔌 What it is
A 20-amp, single-pole thermal-magnetic circuit breaker used for standard 120V residential and light commercial branch circuits.
🧾 What the shorthand means
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20A → 20-amp current rating
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1-POLE → single hot conductor (used for 120V circuits)
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TM BRKR → Thermal-Magnetic breaker:
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Thermal = overload protection (slow trip from sustained overcurrent)
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Magnetic = short-circuit protection (instant trip)
⚡ What it does
This breaker:
- Protects 120V circuits from overload and short circuits
- Automatically shuts off power if:
- Too many devices draw current on the circuit
- A wiring fault or short circuit occurs
- Helps prevent wire overheating and fire hazards
🏠 Typical uses
- Kitchen countertop receptacles
- Bathroom outlets (non-GFCI protected circuits upstream)
- Garage outlets
- Laundry circuits
- General-purpose 20A receptacle circuits
- Dedicated appliance circuits (120V loads)
🧠 Simple explanation
This is a standard 20-amp breaker used for regular household 120V outlets and circuits that protects wiring from overloads and shorts.
