Sigma Engineered Solutions 14350 Weatherproof Box Instruction Manual

Introduction

The Sigma Engineered Solutions Model 14350 is a 1/2-inch, 3-hole, 2-gang weatherproof electrical box designed for outdoor and indoor applications where protection from moisture and dust is required. Its rugged, die-cast construction ensures durability and prevents moisture penetration, making it suitable for wet, damp, or dry locations. This box provides a junction for conduits and can house up to two wired devices, such as receptacles or switches.

This manual provides essential information for the safe and correct installation, use, and maintenance of your weatherproof box. Please read all instructions carefully before beginning installation.

Safety Information

WARNING: Risk of electric shock. Installation should be performed by a qualified electrician in accordance with all national and local electrical codes. Always turn off power at the circuit breaker or fuse box before installing or servicing this product.

• Ensure all connections are secure and properly insulated.
• Use appropriate weatherproof covers and sealing compounds for all openings to maintain the box's weatherproof rating.
• Do not exceed the maximum capacity of 31 cubic inches.
• This product is UL and CSA listed; ensure all components used with it also meet safety standards.

Package Contents

• 1 x Sigma Engineered Solutions 14350 2-Gang Weatherproof Box
• Mounting Lugs
• Closure Plugs
• Pre-installed Ground Screw

Note: Weatherproof covers, receptacles, switches, and conduits are sold separately.

Setup and Installation

1. Prepare the Installation Area: Ensure power is OFF at the main circuit breaker. Select a suitable mounting location that is flat and stable.
2. Mount the Box: Use the provided mounting lugs to secure the box to the desired surface. Mark and drill pilot holes if necessary. Ensure the box is level and securely fastened.
3. Connect Conduits: The box features three 1/2-inch threaded conduit hubs. Remove the appropriate knockout plugs and thread conduits into the hubs. Ensure a tight seal to maintain weatherproof integrity.
4. Wiring: Route electrical wires through the conduits into the box. Connect wires to the devices (receptacles, switches) according to local electrical codes. Utilize the pre-installed ground screw for proper grounding. The box has a capacity of 31 cubic inches.
5. Install Devices: Mount up to two electrical devices (e.g., duplex receptacle, two switches) into the box.
6. Seal Unused Openings: Use the provided closure plugs for any unused conduit hubs to maintain the weatherproof seal. Apply silicone sealing compound around all openings and connections for enhanced rain tightness, as indicated on the box.
7. Install Weatherproof Cover: Attach a suitable weatherproof cover (sold separately) over the installed devices. Ensure the cover is properly sealed to the box.
8. Restore Power: Once all connections are secure, sealed, and the cover is installed, restore power at the circuit breaker.

Image: Interior view of the Sigma 14350 weatherproof box, showing the three 1/2-inch threaded hubs, pre-installed ground screws, and internal markings for capacity and certifications.

Image: Diagram showing the dimensions of the Sigma 14350 weatherproof box: 4.5 inches high, 4.5 inches wide, and 2.1 inches deep.

Operating Principles

The Sigma 14350 weatherproof box functions as a protective enclosure for electrical wiring and devices in outdoor or harsh indoor environments. Its primary purpose is to shield internal electrical components from moisture, dust, and physical damage. Once properly installed with appropriate covers and seals, it maintains a weatherproof barrier, ensuring the safe operation of the enclosed electrical devices.

Maintenance

• Regular Inspection: Periodically inspect the box and its cover for any signs of damage, cracks, or deterioration of seals.
• Seal Integrity: Ensure all conduit connections and unused openings remain tightly sealed. Reapply silicone sealing compound if any signs of leakage or degradation are observed.
• Cleaning: Clean the exterior of the box with a damp cloth as needed to remove dirt or debris. Avoid using abrasive cleaners that could damage the powder-coated finish.
• Hardware Check: Verify that all mounting screws and device screws remain tight.

Troubleshooting

Most issues related to weatherproof boxes stem from improper installation or compromised seals.

• Moisture Inside the Box:
  • Check all conduit connections for tightness and proper sealing.
  • Ensure all unused hubs are sealed with closure plugs and silicone.
  • Verify the weatherproof cover is correctly installed and sealed to the box.
  • Inspect the box for any cracks or damage.
• Loose Mounting:
  • Tighten mounting screws. If the mounting surface is unstable, reinforce it.
• Devices Not Fitting Properly:
  • Ensure you are using standard 2-gang devices and a compatible weatherproof cover.
  • Verify that device mounting tabs are not obstructed.

If issues persist, consult a qualified electrician.

Specifications

Warranty Information

This product comes with a manufacturer's warranty. For specific details regarding the warranty period and coverage, please refer to the documentation included with your purchase or contact Sigma Engineered Solutions directly. Proof of purchase may be required for warranty claims.

Customer Support

For technical assistance, questions about installation, or warranty inquiries, please contact Sigma Engineered Solutions customer support.

Website: www.sigmaengineeredsolutions.com

Please have your product model number (14350) and date of purchase available when contacting support.