Skip to content
Free Local Pickup Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted American Hardware Brands

Square D HomeLine 30 amps Tandem Single Pole Circuit Breaker

Upgrade your electrical panel with precision protection and smarter space use. The Square D HomeLine 30A Tandem Single-Pole Circuit Breaker is engineered for compatible HomeLine pa…

Square D MPN HOMT3020CP In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $28.99. Our online price is $31.99.
$31.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within for same-day shipping
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Upgrade your electrical panel with precision protection and smarter space use. The Square D HomeLine 30A Tandem Single-Pole Circuit Breaker is engineered for compatible HomeLine panels, delivering reliable overcurrent protection in a compact, plug‑in design. It supports 120/240V circuits and is built to keep indoor installations running smoothly.

  • Tandem single-pole design maximizes panel capacity by fitting into a single space in compatible HomeLine panels, helping you add circuits without enlarging the panel footprint.
  • Plug-in mounting enables quick, tool-free installation and easy swaps when you need to service or upgrade a circuit.
  • Electrical rating 30 amps with 120/240-volt compatibility, suitable for higher-demand branch circuits within the HomeLine ecosystem.
  • Indoor use designed for indoor electrical panels and controlled environments where protection is required.
  • Safety certifications UL Listed and CSA Listed, meeting rigorous standards for reliability and safety in residential and light commercial settings.
  • Brand and family part of the Square D HomeLine lineup, ensuring predictable performance and seamless compatibility with other HomeLine components.
  • Compact dimensions width 1.0 in, height 3.0 in, depth 3.2 in, engineered to fit in crowded panels without bulk.
  • Included in packaging Breakers Included: Yes — ready to install as part of bulk‑packaged HomeLine offerings.
  • Application versatility ideal for renovations, expansions, or new circuits where space-constrained panels require additional capacity, especially in residential and light commercial settings.

Who benefits from this 30A tandem single-pole circuit breaker? homeowners optimizing a crowded panel, apartment upgrades adding a dedicated 30A circuit, or contractors working within HomeLine environments who need a reliable, standards‑based tandem solution. It’s a practical choice when you must balance load, maintain safety, and keep panel space efficient without compromising on circuit protection.

Practical tips for best results: verify that your panel is labeled to accept tandem breakers, ensure the new circuit aligns with your load calculations, and replace only with the same type and rating to maintain listing integrity. With Square D HomeLine, you get dependable protection, straightforward installation, and the peace of mind that comes from choosing a trusted industry standard for indoor electrical panels.

The Details Specifications

Brand Square D
SKU 3894953
UPC 785901403852
Unit 0
Case Pack Quantity 10 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 3 × 1 × 3
Weight 0 lbs
Cubic Feet 0.00728 ft³
Country of Origin MEXICO
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare