Parallax ITEQ RV Circuit Breakers: QP, QT & Two-Pole Guide

Parallax's ITEQ breaker part numbers identify Siemens-style plug-in AC circuit breakers commonly encountered in RV distribution equipment. The important distinction is between a QP single-pole breaker, a QT tandem breaker with two independent 120V circuits, and a two-pole breaker for a suitable 120/240V application. These formats cannot be selected by amperage alone.

Three breaker designs that look similar in an RV panel

QP — one-pole

15AOne independent handle
One 1-inch panel space

A single 120V circuit. Examples: ITEQ115, ITEQ120 and ITEQ130. Choose the exact amperage listed for the circuit.

QT — twin / duplex

15A | 20ATwo independent handles in one housing
One 1-inch panel space, where permitted

A tandem QT provides two separate 120V circuits. Example: ITEQ1520. Two handles do not make it a 240V two-pole breaker.

QP — two-pole

50A + 50ACommon two-pole switching
Two adjacent 1-inch panel spaces

For the approved 120/240V application. The ITEQ250 is a 50A two-pole model, not a 30/20 tandem.

Original visual identification aid; not a scale drawing, terminal layout, pole-approval list or installation instruction. Whether a QP or QT fits depends on the specific panel's listing and permitted breaker positions.
Why this matters: QT tandem breakers are only acceptable in panel positions designed and listed for that format. They cannot be substituted for a two-pole breaker or installed merely because the body appears to fit.

Match Parallax ITEQ part numbers to their rated format

Part number Breaker format Rated sections Photo
ITEQ115 QP single-pole 15A View exact-number card
ITEQ120 QP single-pole 20A View exact-number card
ITEQ130 QP single-pole 30A View exact-number card
ITEQ1515 QT duplex (twin) 15A / 15A View exact-number card
ITEQ1520 QT duplex (twin) 15A / 20A View exact-number card
ITEQ2020 QT duplex (twin) 20A / 20A View exact-number card
ITEQ3015 QT duplex (twin) 30A / 15A View exact-number card
ITEQ3020 QT duplex (twin) 30A / 20A View exact-number card
ITEQ250 QP two-pole 50A View exact-number card

These are catalog identification values, not approval for a particular power centre or installation. For example, a Parallax 8345/8355 has a 30A shore-power service and a separate 45A/55A DC converter rating; the converter's output rating does not determine which AC breaker belongs in the panel.

ITEQ breaker product photos and exact part links

Compare the markings and handle layout with the installed breaker, then open the exact-number product to review its current details and availability.

Parallax ITEQ115 15A single-pole QP breaker product photograph
Parallax ITEQ120 20A single-pole QP breaker product photograph
Parallax ITEQ130 30A single-pole QP breaker product photograph
Parallax ITEQ1515 15A / 15A duplex QT breaker product photograph
ITEQ1515 — 15A / 15A duplex QTTwo independent 15A handles in a twin breakerSee product and availability
Parallax ITEQ1520 15A / 20A duplex QT breaker product photograph
Parallax ITEQ2020 20A / 20A duplex QT breaker product photograph
Parallax ITEQ3015 30A / 15A duplex QT breaker product photograph
ITEQ3015 — 30A / 15A duplex QTTwo 120V sections, not a linked two-pole 240V breakerSee product and availability
Parallax ITEQ3020 30A / 20A duplex QT breaker product photograph
ITEQ3020 — 30A / 20A duplex QTTwo separate rated sections in one QT housingSee product and availability
Parallax ITEQ250 50A two-pole QP breaker product photograph
ITEQ250 — 50A two-pole QPTwo-pole 120/240V breaker; not a tandemSee product and availability

Manufacturer specifications and panel checks

Parallax groups its offerings into one-pole, twin duplex and two-pole circuit breakers. The 8345 and 8355 are 30A AC service power centres; their 11-position DC fuse blocks are separate from the AC breaker compartment.

Before selecting a replacement: Read the breaker manufacturer's full number, the panel's approved breaker types and positions, the circuit wire rating and the installation label. Disconnect all AC power and have panel work completed by a qualified RV electrician. Never use a larger breaker to remedy repeated tripping.

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