GE
GE THQB1115 Miniature Circuit Breaker 15A 1 Pole 120/240V AC
Single-pole bolt-on breaker rated 15 A at 120/240 V AC with 10 kA interrupting capacity
- 15 A rating protects standard lighting and receptacle circuits
- 10 kA interrupting capacity clears faults on 120/240 V panels
- Single-pole bolt-on design fits GE THQB load centres
- Screw-clamp terminals accept 14–8 AWG copper or 12–8 AWG aluminium
- Compact 3.5 × 1 × 3.3 in frame saves panel space
GE THQB1115 Circuit Breaker Basics
The GE THQB1115 is a miniature circuit breaker rated at 15 amps with a single pole for 120/240V AC systems. It fits standard lighting panels and load centres that accept bolt-on THQB series devices. Electricians and facility managers use it for branch-circuit protection in residential or light-commercial installations.
Bolt-On Mounting and Terminal Range
The bolt-on mounting style secures the breaker directly to the panel bus for a stable connection. Screw-clamp terminals accept aluminium conductors from 12 MCM up to 8 MCM and copper conductors from 14 MCM up to 8 MCM. This range covers typical branch-circuit wiring without requiring special lugs or adapters.
10 kA Interrupting Rating Decides Fit
A maximum AIR rating of 10 kA at 120/240V AC determines whether the breaker can safely clear faults on the supply side. Panels with available fault current above this level need a higher-rated device. Buyers who need a two-pole breaker or a higher interrupting capacity cannot use this model.
Highlights
- 15 A rating protects standard lighting and receptacle circuits
- 10 kA interrupting capacity clears faults on 120/240 V panels
- Single-pole bolt-on design fits GE THQB load centres
- Screw-clamp terminals accept 14–8 AWG copper or 12–8 AWG aluminium
- Compact 3.5 × 1 × 3.3 in frame saves panel space
Specifications
| Brand | GE |
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Questions about this item
Does the THQB1115 breaker require any periodic maintenance or scheduled replacement?
No, the THQB1115 is a sealed thermal-magnetic device with no user-serviceable parts; it is replaced only after it trips on a fault or shows physical damage.
What limits continuous loading on the THQB1115 before it trips?
The 15A thermal trip element opens the circuit when sustained current exceeds its rating; code practice loads it to no more than 12A continuously.
How much heat or noise does the THQB1115 produce when carrying full load all day?
At 15A the breaker runs warm but silent; the bolt-on mount conducts heat into the panel bus, and there are no moving parts once the toggle is set.
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