Electrical & Wiring · My build kit

Siemens Q115 15A Single-Pole Breaker

The Siemens breaker is among the AC electrical parts I bought for the van. The diary context on this page is my cable-entry work, where the placement of boxes and routes was a substantial part of the project.

By · Camper Van Freedom

Read my build notes ↓

The Item in My Kit

I bought Siemens Q115 15A Single-Pole Breaker as part of my camper van equipment.

The Siemens breaker is among the AC electrical parts I bought for the van. The diary context on this page is my cable-entry work, where the placement of boxes and routes was a substantial part of the project.

Keeping Additional Breaker Functions Visible

  1. I pulled the roof cables through the PVC route with fish tape.
  2. I fitted plastic trim around the roof opening where the wires entered the van.
  3. I completed the remaining light connections, covered the boxes and joined the final conduit sections.
The roof at the end of my Roof Wiring and Devices Project Day 8 wiring session.
The roof at the end of my Roof Wiring and Devices Project Day 8 wiring session.
The trimmed roof opening where my cable groups enter the van.
The trimmed roof opening where my cable groups enter the van.

My Takeaway from This Job

The Q115 purchase is a fifteen-amp single-pole breaker, while the two alternatives add different detection functions. Ground-fault and arc-fault versions therefore change more than the face label or package, and remain distinct products in the comparison.

Product Details And Van-Build Uses

SpecificationProduct Detail
ModelQ115
Current Rating15A
PolesOne
Voltage Rating120V AC

The Q115 is the fifteen-amp, single-pole model in Siemens’ QP breaker range. Its product data separates the current rating, voltage rating and pole count, which are different identifiers when comparing similar-looking breakers. The original Siemens data sheet is linked below alongside the exact-model retailer reference. For a van electrical-equipment record, those identifiers help keep this breaker separate from the DC protection components and two-pole devices elsewhere in the catalog. The physical connection and the receiving equipment remain part of the component selection, while the model reference provides a reliable starting point for finding the same part again.

Exact Retailer Product Reference

Download Siemens Q115 Product Data Sheet (PDF)

Southwire Romex 14/3: Cable Construction And Specification

Is Q115 A Two-Pole Breaker?

No. Q115 is the single-pole, fifteen-amp model described in the linked product data.

Alternative products

Two Alternatives to Compare

The QF115A adds ground-fault detection, while the QA115AFC adds arc-fault detection; these are different breaker functions within Siemens' 15A options.

ProductWhat distinguishes itPurchase link
Siemens Q115 15A Single-Pole BreakerQ115 single-pole Type QP breakerView on Amazon
Siemens QF115A GFCI Breaker (alternative)Fifteen-amp ground-fault breakerView on Amazon
Siemens 15A Arc-Fault Breaker (alternative)Fifteen-amp arc-fault breakerView on Amazon
Siemens QF115A GFCI Breaker

Siemens QF115A GFCI Breaker

This single-pole breaker combines a 15-amp circuit rating with ground-fault detection. A test button sits beside the operating handle.

View on Amazon
Siemens 15A Arc-Fault Breaker

Siemens 15A Arc-Fault Breaker

This single-pole breaker includes arc-fault detection alongside its circuit-breaker function. The body combines an operating handle with a test control.

View on Amazon

Questions from My Build

How Did I Pull the Roof Wiring Through?

My Roof Wiring and Devices Project Day 8 notes record using fish tape to pull wires through the PVC route.

What Do the Photographs Show?

They show the trimmed roof entry and the roof hardware at the end of that wiring session.

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