PJB4175 | Intermatic Pool & Spa 4 Light Junction Box

The Intermatic PJB4175 Pool & Spa Junction Box is a heavy-duty, UL-listed enclosure designed to safely manage wiring connections for up to four low-voltage or line-voltage pool and spa lights. Built from corrosion-resistant PVC with stainless-steel hardware, this junction box provides a secure barrier between electrical components and pool environments. It features multiple conduit entries, an elevated mounting base for deck installations, and an internal grounding bar to maintain compliance with NEC pool-lighting requirements. The PJB4175 is widely used for coordinating multiple pool or spa lights, LED retrofits, and equipment-pad lighting upgrades.

Highlights

• Supports Up to Four Light Circuits: Designed with multiple ports to accommodate wiring for four pool or spa lights, ideal for multi-zone lighting layouts and LED conversions.

• UL-Listed, Pool-Safe Construction: Manufactured from corrosion-resistant PVC and stainless hardware, meeting UL and NEC requirements for wet-niche pool lighting installations.

• Multiple Conduit Knockouts: Includes several ¾-inch and 1-inch entries, allowing flexible routing for rigid or flexible conduit on new builds or equipment-pad retrofits.

• Integrated Grounding Bar: Provides a secure bonding point for fixtures and ensures safe, code-compliant electrical connections.

• Deck-Mountable Waterproof Housing: Designed with an elevated base and gasketed cover to keep wiring protected from moisture, backwash spray, and harsh outdoor exposure.

Additional Info

This FAQ helps in-store customers verify wiring capacity, conduit sizing, and NEC safety requirements before picking up the Intermatic PJB4175 Junction Box at Discount Pool Mart. It also explains what to bring for quick verification at the counter.

Circuit Capacity, Conduit Fitment & Pool-Light Compatibility

These answers help walk-in shoppers confirm the PJB4175 fits their pool-light setup.

How do I confirm the PJB4175 is the right junction box for my lights?

If you’re wiring up to four pool or spa lights and using ¾ inch or 1 inch conduit, this UL-listed box is a common match. Bringing photos of your pad and conduit layout helps staff confirm fitment.

Can this box support LED pool-light retrofits?

Yes. It works well for both traditional wet-niche lights and LED retrofit fixtures that require clean, organized junction wiring.

Does it work for both low-voltage and line-voltage lights?

Yes. The PJB4175 is designed for both types, with proper separation and NEC-compliant wiring pathways.

Safety Requirements, Grounding & Installation Basics

These answers help customers understand electrical-safety expectations once installed.

Does the junction box include a grounding bar?

Yes. The internal grounding bar provides a secure bonding point required for safe pool-light installations.

Why is the elevated base important?

It helps keep connections above standing water, backwash spray, and moisture around the equipment pad.

Is the box waterproof when closed?

The gasketed lid helps keep moisture out, but proper conduit sealing and installation are critical for long-term safety.

In-Store Pickup, Sizing Checks & Installation Prep

Helpful guidance for Discount Pool Mart customers preparing to visit.

What should I bring to verify fitment?

Bring photos of your current junction box, conduit entries, and lighting circuits so staff can confirm correct sizing.

Can I examine the box before purchasing?

Yes. You may inspect the knockouts, lid gasket, and grounding bar at the counter.

Is the PJB4175 ready for installation after pickup?

Yes. Once conduit and wiring are secured, the box can be mounted immediately.