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ABB AB A-Series RLP Panelboard Box
The ABB AB RLP panelboard box is part of the A-Series line of Pro-Stock, unassembled lighting panels, giving contractors and panel shops a code-ready enclosure shell for building out lighting panelboards to spec. This panelboard box platform is offered across an Enclosure Rating / Box Length family covering NEMA 1 enclosures from 25.5 in. L up to 88.5 in. L, and NEMA 3R enclosures at 43.5 in. L and 49.5 in. L, so the right footprint and environmental rating can be selected for the specific installation. Every box in the family ships as a bare shell with blank end walls, and is compatible with the optional AKEW2 knockout end wall kit when pre-cut knockouts are needed instead of blanks. Each box ships in 1 EA packaging for straightforward stocking and job-site handling.
Key Features
- Enclosure Family: Available in NEMA 1 lengths from 25.5 in. L through 88.5 in. L, and NEMA 3R lengths of 43.5 in. L and 49.5 in. L, sized for A-Series lighting panelboard interiors.
- NEMA Rated Options: Choose NEMA 1 construction for general indoor panelboard installations or NEMA 3R construction for outdoor and wet-location panelboard installations.
- Blank End Walls: Ships standard with blank end walls for a clean, uncut enclosure ready for field build-out.
- Knockout Option: Compatible with the optional AKEW2 knockout end wall kit when pre-punched knockouts are required instead of blanks.
- Pro-Stock Unassembled Design: Supplied as an unassembled lighting panel box for flexible internal configuration and field build-out by contractors and panel shops.
- A-Series Platform: Part of ABB's A-Series panelboard family, referenced under model line B493.
- Packaging: Supplied 1 EA per box for job-site and warehouse handling.
Certifications & Compliance
- NEMA 1 Enclosure Rating (select lengths)
- NEMA 3R Enclosure Rating (select lengths)
Technical Specifications
- Enclosure Rating / Box Length Options: NEMA 1 – 25.5 in. L, 31.5 in. L, 37.5 in. L, 43.5 in. L, 49.5 in. L, 55.5 in. L, 64.5 in. L, 76.5 in. L, 82.5 in. L, 88.5 in. L; NEMA 3R – 43.5 in. L, 49.5 in. L.
- Country of Origin: UKN
- Packaging: 1 EA
Typical Applications
- Commercial and Industrial Lighting Panelboard Assembly
- Indoor Panelboard Enclosures (NEMA 1 options)
- Outdoor and Wet-Location Electrical Enclosures (NEMA 3R options)
- Panelboard and Load Center Build-Outs
- Pro-Stock Field-Assembled Panel Projects
- New Construction and Panel Retrofit Work
Why ABB?
ABB's A-Series panelboard boxes deliver a broad range of NEMA 1 and NEMA 3R enclosure lengths built for the demands of Pro-Stock lighting panel assembly, giving contractors a dependable, code-ready shell to build from regardless of the installation environment. With blank end walls as standard and an optional AKEW2 knockout kit for added flexibility, this RLP box family supports reliable, code-compliant panelboard installations for professional electrical work.
Manufacturer Resources
Spec Sheet
Product Specs
- Buy American Act (BAA) Compliant:
- Contact Manufacturer
- American Recovery and Reinvestment Act (ARRA) Compliant:
- Contact Manufacturer
- Country of Origin:
- UKN
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Product Type:
- Panelboard Box
- Series:
- A-Series
- Product Subgroup:
- Panelboards & Load Centers
ABB AB49B – Frequently Asked Questions
1) What lengths does the ABB A-Series panelboard box come in, and which ones are NEMA 3R?
The A-Series box range runs 25.5, 31.5, 37.5, 43.5, 49.5, 55.5, 64.5, 76.5, 82.5 and 88.5 inches long. Only two of those are NEMA 3R: the 43.5 inch AB433 and the 49.5 inch AB493. Everything else in the family (AB25B through AB88B) is NEMA 1, which is indoor, dry-location only. If the panel is going outdoors or anywhere damp, you are limited to the 43.5 or 49.5 inch box.
2) Can I mount an ABB A-Series NEMA 3R panelboard box outdoors?
Yes. The NEMA 3R versions, AB433 at 43.5 inches and AB493 at 49.5 inches, are built for outdoor and wet-location panelboard work. The NEMA 1 boxes in the same A-Series family are not, so confirm you are ordering a 3R length and not the same-size NEMA 1 (AB43B or AB49B, which share those footprints but are indoor-rated).
3) Does the ABB RLP panelboard box include the interior and breakers, or is it just the enclosure?
It is the bare box only. The RLP is supplied as an unassembled Pro-Stock lighting panel shell, so you are ordering the enclosure and building the interior out to spec separately. Plan on sourcing the panelboard interior, trim and breakers as separate line items.
4) Do the ABB A-Series boxes come with knockouts punched in the end walls?
No. Blank end walls are standard, so the box arrives uncut and you punch it where your conduit runs land. If you want factory knockouts instead, order the AKEW2 knockout end wall kit alongside the box.
5) What is the box width on the ABB A-Series RLP panelboard enclosure?
The 49.5 inch NEMA 3R box measures 49.5 in. L x 20 in. W. That 20 inch width is the A-Series footprint the lighting panelboard interiors are sized to, so the length is what changes across the family, not the width.
6) How do I pick the right box length for my ABB lighting panelboard?
Length follows the interior. Size the box to the A-Series lighting panelboard interior and gutter space the circuit count requires, then match that to one of the stocked lengths: 25.5, 31.5, 37.5, 43.5, 49.5, 55.5, 64.5, 76.5, 82.5 or 88.5 inches. Larger circuit counts drive you up the range. Note that only 43.5 and 49.5 are offered in NEMA 3R, so an outdoor panel with a long interior may need to be split across two enclosures.
7) Is the ABB A-Series panelboard box Buy American compliant for a government job?
ABB lists the country of origin as unknown on the A-Series box and directs Buy American Act and ARRA compliance questions to the manufacturer. For a federally funded project, get written confirmation from ABB on the specific box length before you spec it.
8) How are ABB A-Series panelboard boxes packaged for stocking?
Each box ships 1 EA, one enclosure per pack. There is no multi-pack, so order quantity equals box count when you are pulling stock for a multi-panel job.
How fast can I get the ABB AB49B delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB AB49B come with a warranty?
Absolutely. The ABB AB49B is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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