The Westlake JB552 PVC junction box (5″ × 5″ × 2″) delivers reliable protection with a UV- and impact-resistant PVC body, integrated threaded brass inserts, and a watertight gasketed cover. Offering approximately 38.7 cu‑in internal volume, it meets NEMA 1/2/3/4/4X/12/13 standards and is UL/CSA approved—ideal for residential, commercial, industrial, outdoor, and corrosive-level installations .
As a 100% Canadian‑owned wholesaler, Evolt offers the JB552 at competitive wholesale pricing, with fast shipping across Alberta and BC and expert support. Get national-grade junction box quality without rebate-driven markups or inflated costs.
Frequently Asked Questions
Q: Is JB552 suitable for outdoor or wash‑down areas?
A: Yes its gasketed cover and NEMA 4/4X rating offer protection against dust, water, and corrosive environments.
Q: How do you mount and seal conduit connections?
A: Use the built-in threaded brass inserts and properly seal with PVC solvent or O-ring threaded fittings.
Q: What is the internal splicing capacity?
A: Approximately 38.7 cu‑in (~4.68″ L × 4.68″ W × 1.84″ D) provides ample room for multiple wire splices.
Common Use Scenarios
Residential & retrofit jobs – ideal for junctions behind walls, basements, or utility spaces.
Outdoor fixtures or sensor junctions – perfect for garage, patio, or garden wiring.
Industrial/corrosive environments – suitable for chemical plants, washdown zones, or agricultural use.
Installation Tips
Align the gasket evenly before tightening all cover screws to ensure the NEMA 4X seal.
Seal conduit entries with rigid PVC threaded connectors or O‑ring fittings to prevent moisture ingress.
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Westlake JB552 is a 5 × 5 × 2″ gray PVC junction box with gasketed cover, threaded brass inserts, and ≈38.7 cu‑in capacity. NEMA 1/2/3/4/4X/12/13 rated—designed for rigid PVC conduit in indoor, outdoor, and corrosive environments