- Stock 96
Main Breaker Panel · 100A - 20/40 Circuits 3R Outdoor · Eaton CBRPM120
Outdoor Eaton BR plug-on neutral load centre with 100A main breaker for 120/240V single-phase service. This 20-space/40-circuit NEMA 3R enclosure is commonly used for residential and light commercial outdoor distribution where a rain-tight panel is required.
What this product is for
This load centre is for outdoor 120/240V single-phase power distribution in residential and light commercial installations. It provides a factory main breaker in a NEMA 3R rain-tight enclosure for service entrance or distribution applications where the panel is exposed to weather.
Use for
Use for outdoor service equipment, detached garages, farm or utility buildings, and exterior-mounted distribution panels where 100A capacity and up to 20 spaces/40 circuits are suitable. The plug-on neutral design can help reduce wiring time on compatible branch circuits.
Avoid for
Avoid for indoor-only panel locations where a NEMA 1 enclosure is more appropriate, or for applications requiring more than 100A service, more than 20 spaces/40 circuits, or three-phase distribution.
Best for
Best for electricians needing an outdoor Eaton BR load centre with a factory-installed main breaker and rain-tight enclosure. It fits jobs where branch circuit count is moderate and outdoor mounting is required.
Installed in
Typically installed on exterior walls, service entrances, detached structures, workshops, and other outdoor locations. Approximate enclosure size from catalogue data is 14-3/8 in W x 25 in H x 5 in D (about 365 x 635 x 127 mm).
Why this product exists
This model combines a 100A main breaker, outdoor enclosure, and 20-space/40-circuit capacity in one panelboard to simplify outdoor residential and light commercial distribution. It is intended for jobs that need weather protection without moving to a larger panel than necessary.
Compared with similar products
Compared with indoor load centres, this model adds a NEMA 3R rain-tight enclosure for outdoor use. Compared with larger panels, it offers a more compact 20-space/40-circuit format. Typical guidance only: 100A panels are commonly used where calculated loads fit smaller homes, detached buildings, or light commercial distribution, but actual sizing depends on load calculations and local electrical code.
Specifications
- Manufacturer part number: RCBRPM120
- Brand: Eaton
- Series: BR
- Product type: Main breaker load centre
- Amperage: 100A
- Voltage: 120/240V AC
- Phase: Single-phase, 3-wire
- Circuit capacity: 20 spaces, 40 circuits
- Enclosure: NEMA 3R, outdoor, rain-tight
- Neutral style: Plug-on neutral
- Approximate dimensions: 14-3/8 in W x 25 in H x 5 in D (about 365 x 635 x 127 mm)
- Typical conductor range shown in catalogue: #8 to 1/0
Actual suitability depends on service design, conductor selection, installation conditions, and local electrical code.
- Voltage120/240V AC
- Dimensions14-3/8 in W x 25 in H x 5 in D (about 365 x 635 x 127 mm)
- Current Rating100A
- PhaseSingle-phase, 3-wire
- EnclosureNEMA 3R, outdoor, rain-tight
- SeriesBR
- Circuit Capacity20 spaces, 40 circuits
- Neutral StylePlug-on neutral
- BrandsEaton
- Stock in Elmira1
- Stock in Flesherton1
Aptico Supply Delivery
Fast Electrical Supply Delivery Across Ontario
Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

Delivery Built Around Electrical Contractors
Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
Free Daily Delivery
Free daily delivery is available for larger contractor accounts.
- Order by 9:00 AM for morning delivery
- Order by 2:00 PM for afternoon delivery
- Available in qualifying local delivery areas
Free Weekly Delivery
Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
- Order by 11:00 AM on the route day
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Pickup is available from our Ontario locations for customers who prefer to collect their order directly.
- Elmira pickup available
- Flesherton pickup available
- Call ahead for large or special-order items
Local Delivery Areas
See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
Do you offer free delivery?
Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.
Can I pick up my order?
Yes, pickup is available from our Elmira and Flesherton locations.
Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
Yes, jobsite delivery may be available depending on the order size, location, and delivery schedule.
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