Part of the Q-Line family, this 15/30/15A quadplex breaker delivers four circuits of protection while only occupying two standard one-inch spaces. It provides two 15A single-pole outer circuits and one 30A double-pole inner circuit for residential and commercial applications. Designed for seamless integration, it mounts into ABB ReliaHome, GE PowerMark Gold, and PowerMark Plus load centers. Rated at 10 kAIC for 120/240V systems, it features a thermal-magnetic trip and common trip center poles.
ABB ReliaHome Load Centers, GE PowerMark Gold Load Centers, GE PowerMark Plus Load Centers
Wire Gauge
14-8 AWG (Cu), 12-8 AWG (Al)
Max Wire
8 AWG
Min Wire
14 AWG
Protection and operation
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed
Standards and features
Special Classification
Quadplex
Available Options
Padlock Attachment, Shunt Trip, Auxiliary Switch
Standards
HACR, SWD, UL 489
Approval
cUL, UL
Temp Rating
40C
Product FAQs
5 answers
Can I install the THQLQ153015 in an older GE PowerMark load center?
Yes. ABB acquired GE Industrial Solutions, and this breaker is fully backward compatible with legacy GE PowerMark Gold and PowerMark Plus panels, as well as current ABB ReliaHome load centers.
How much panel space does this quadplex breaker require?
It requires two standard 1-inch spaces, occupying 2 inches total. Unlike older half-inch THQP breakers, the THQLQ series does not require special wing stabs and fits directly into standard full-size slots.
What is the typical application for the 15/30/15A configuration?
The outer poles provide two independent 15A, 120V circuits for general lighting or receptacles, while the inner poles provide one 30A, 240V circuit commonly used for appliances like water heaters or electric dryers.
Does the 30A double-pole circuit feature a common trip?
Yes. The inner 30A circuit features an internal common trip mechanism, ensuring both poles disconnect simultaneously during an overload or short circuit on the 240V load.
Is the ABB THQLQ153015 the exact same breaker as the GE THQLQ153015?
Yes. Following ABB's acquisition of GE Industrial Solutions, the THQLQ153015 is manufactured to the exact same specifications and serves as the direct replacement for the legacy GE-branded version.
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