Pentair Junction Box Brass Base w/ Polycarbonate Cover - (3) - 3/4 in. ports | 78310600
Pentair
SKU: PEN78310600
Pentair 78310600 – Junction Box with Cover (3× ¾″ Ports)
Product Overview
The Pentair 78310600 is a durable electrical junction box designed for pool and spa lighting systems. It features a brass base, polycarbonate cover, and three ¾-inch entry ports—making it suitable for wiring connections in aquatic environments.
Key Features
- Brass base offers corrosion resistance and long service life.
- Polycarbonate cover provides weather-proof protection for electrical connections.
- Three ¾″ ports allow flexible conduit wiring and multiple connections.
- UL-listed and suitable for residential pool/spa lighting system installations.
Technical Specifications
- Part Number: 78310600
- Port Size: (3) ¾″ NPT entries
- Base Material: Brass
- Cover Material: Polycarbonate
- Intended Use: Electrical junction box for pool and spa lighting wiring
Applications & Compatibility
This junction box is ideal for the equipment pad or lighting panel where underwater lights or pool/spa electrical systems require a secure, corrosion-resistant enclosure. It is commonly used alongside Pentair lighting products and accessories. Confirm that your lighting or control system calls for a ¾″ conduit-ready junction box with three entry ports before selecting.
Installation Instructions
- Turn off all power to the pool equipment and lock out the circuit prior to installation.
- Mount the junction box on a stable surface near the light fixture disconnect or wiring route.
- Run conduit or cable through the ¾″ ports and secure connections using appropriate strain relief bushings.
- Connect wires in accordance with local electrical code, sealing around conduits to prevent moisture ingress.
- Replace the polycarbonate cover and restore power; test the lighting circuit for proper operation.
Troubleshooting
- No light or power to fixture: Verify that wiring enters correctly, circuit breaker is on, and connections in the junction box are secure.
- Corrosion inside box: Ensure proper sealing of cover and conduit, check for water intrusion, and replace damaged gaskets as needed.
- Loose conduit or wires: Confirm that strain reliefs are installed and cables are secured; re-tighten if necessary.
Maintenance Tip
Inspect the junction box annually for signs of moisture ingress, corrosion, or damaged conduit connections. Keeping the cover tight and entries sealed will prolong the life of the electrical connections and prevent lighting failures in pool or spa systems.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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