CMI 15" x 15" x 10" Black Plastic 5-Hole Swimming Pool Junction Box JBP57510
CMI
SKU: JBP57510
CMI Thermocraft 5-Hole Swimming Pool Light Junction Box, Black | JBP57510
The CMI JBP57510 Thermocraft Swimming Pool Light Junction Box is a heavy-duty electrical junction box designed for connecting underwater swimming pool and spa lights to their electrical supply. Manufactured by Consolidated Manufacturing International (CMI), this five-hole junction box features a durable black PVC molded base, high-impact polycarbonate cover, four cord restraints, and a brass terminal block with stainless steel screws.
Engineered specifically for swimming pool lighting installations, the CMI JBP57510 provides a protected enclosure for electrical wiring connections while accommodating multiple underwater light circuits. Its five-conduit-entry configuration offers installation flexibility for compatible lighting systems.
The Thermocraft junction box is designed for professional pool and spa electrical installations and complies with UL 1241 requirements for swimming pool junction boxes.
Product Features
- 5-Hole Junction Box: Provides five conduit connection openings for compatible pool lighting installations.
- Four Cord Restraints: Built-in cord restraint provisions help secure underwater light cords.
- Multiple Light Connections: CMI identifies this model for installations involving two to three underwater pool lights.
- High-Impact Polycarbonate Cover: Durable protective cover designed for pool equipment environments.
- PVC Molded Base: Corrosion-resistant nonmetallic housing construction.
- Brass Terminal Block: Provides an electrical connection point for compatible wiring.
- Stainless Steel Terminal Screws: Corrosion-resistant fastening hardware for secure wire connections.
- Interior and Exterior Bonding: Designed with bonding provisions for compliant pool lighting installations.
- Line-Voltage and Low-Voltage Wiring: Accommodates approved pool light electrical configurations.
- UL 1241 Compliance: Designed to meet applicable swimming pool junction box safety requirements.
- Compact Circular Base: Rounded construction offers mounting flexibility in compatible locations.
Product Specifications
- Manufacturer: Consolidated Manufacturing International (CMI)
- Product Brand: Thermocraft
- Manufacturer Part Number: JBP57510
- Distributor Part Number: GEP-57-6036
- Product Type: Swimming Pool & Spa Light Junction Box
- Number of Conduit Openings: 5
- Cord Restraints: 4
- Manufacturer-Listed Light Configuration: 2–3 Lights
- Base Material: PVC
- Cover Material: High-Impact Polycarbonate
- Color: Black
- Terminal Block: Brass
- Terminal Hardware: Stainless Steel Screws
- Bonding: Interior and Exterior Provisions
- Electrical Applications: Approved Line-Voltage and Low-Voltage Pool Light Connections
- Applicable Standard: UL 1241
- UPC: 786261954589
- Manufacturer Case Quantity: 24
- Package Quantity: 1 Junction Box
Conduit Connection Sizes
The CMI JBP57510 provides five conduit entry positions with the following nominal sizes:
- One (1) 1/2" Conduit Connection
- Two (2) 3/4" Conduit Connections
- Two (2) 1" Conduit Connections
Confirm the required conduit fittings, connection arrangement, and installation instructions before ordering. Not all openings are intended for the same wiring or cord-entry application.
Pool and Spa Lighting Applications
- Inground swimming pool light installations
- Underwater spa lighting connections
- Multiple underwater light installations
- Compatible LED pool lighting systems
- Line-voltage pool light connections
- Low-voltage pool light wiring connections
- Pool renovation and lighting replacement projects
- New swimming pool construction
Heavy-Duty Brass Terminal Block
The CMI Thermocraft junction box features a brass terminal block designed to provide dependable electrical connections. Stainless steel terminal screws help secure the conductors while offering corrosion resistance in pool equipment environments.
The terminal arrangement is specifically intended for use in compatible swimming pool and spa lighting electrical installations.
Durable PVC and Polycarbonate Construction
The JBP57510 combines a molded PVC base with a high-impact polycarbonate cover. These materials provide a durable, corrosion-resistant enclosure suitable for approved pool lighting junction box locations.
The circular housing also allows flexible positioning compared with traditional rectangular enclosures, subject to the required mounting clearances and installation standards.
Interior and Exterior Bonding Provisions
Proper grounding and bonding are essential for underwater swimming pool lighting safety. The CMI JBP57510 includes provisions for interior and exterior bonding connections.
All grounding, bonding, conductor sizing, and wiring methods must follow applicable electrical codes and the manufacturer's installation instructions.
Compatible Mounting Accessories
CMI offers separate mounting accessories for compatible Thermocraft junction boxes:
- CMI JBP00254: Junction Box Wall Mount Bracket
- CMI JBP00257: 3/4" x 5' PVC Junction Box Support Rod
These accessories are available separately and are not automatically included with the JBP57510.
Installation Considerations
The CMI Thermocraft junction box is intended for installation by a qualified electrician familiar with underwater pool lighting requirements.
- Confirm the box is suitable for the number and type of lighting circuits being connected.
- Verify conduit sizes and approved connection fittings.
- Install the junction box in an approved accessible location.
- Maintain all required clearances and mounting elevations.
- Use the appropriate cord restraints for underwater light cables.
- Complete grounding and bonding connections according to applicable codes.
- Ensure the cover and all conduit openings are properly secured.
- Follow the manufacturer's installation instructions and applicable National Electrical Code requirements.
Related Pool Light Junction Boxes
Aqua Pool Supply also offers alternative pool light junction boxes for installations requiring different configurations.
- Hayward LJBUY00PP1 – 3-Hole Pool & Spa Light Junction Box – Alternative junction box for compatible pool and spa lighting installations requiring a three-hole configuration. Verify conduit sizing and wiring requirements.
- Pentair 78310700 – Pool Light Junction Box with Brass Base & Polycarbonate Cover – Genuine Pentair pool lighting junction box with 3/4", 1", and 3/4" conduit connection configuration.
Additional Pool Lighting Components
Browse our Pool Light Parts & Diagrams for additional underwater lighting components, junction boxes, replacement hardware, and lighting accessories.
Package Contents
Includes: One (1) CMI JBP57510 Thermocraft 5-Hole Swimming Pool Light Junction Box Assembly.
Important: This listing is for one junction box, not a manufacturer case of 24. Wall mounting brackets, support rods, conduit, pool lights, and other installation accessories are sold separately unless specifically stated.
Compatibility: Verify the number of light connections, conduit sizes, cord restraints, electrical configuration, and local installation requirements before purchasing.
Electrical Safety: Improperly installed underwater lighting equipment can create serious electrical shock hazards. Installation and servicing must be performed by a qualified electrician in compliance with CMI instructions, the National Electrical Code, and applicable local regulations.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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