Simx LHT0346 Installation Manual

The Simx LHT0346 is a high-performance industrial lighting fixture designed for commercial and warehouse applications. It features a durable aluminum housing, high-efficiency LED array, IP65 waterproof rating, wide operating voltage range (100-277V AC), and multiple mounting options. This manual provides essential information for safe unpacking, installation, wiring, configuration, and initial operation of the fixture.

1. Safety Precautions 2. Package Contents 3. Product Overview & Dimensions 4. Technical Specifications 5. Mounting Instructions 6. Electrical Wiring 7. Configuration & Setup 8. Commissioning & Testing 9. Maintenance 10. Troubleshooting 11. Warranty & Support

Safety Precautions

Read all instructions before installation. Failure to follow warnings and instructions may result in electric shock, fire, or serious injury.

  1. Power Disconnect: Ensure all power is turned OFF at the circuit breaker before handling, wiring, or mounting the fixture.
  2. Qualified Personnel: Installation should be performed by a qualified electrician in accordance with all national and local electrical codes.
  3. Environmental Conditions: Install only in locations where the ambient temperature is within the specified operating range. Do not install in explosive atmospheres.
  4. Mechanical Safety: The fixture is heavy. Use appropriate lifting techniques and secure mounting hardware rated for the fixture's weight.
  5. Water & Dust: Ensure all seals and gaskets are properly seated after wiring to maintain the IP65 rating.

WARNING! Risk of electric shock. Do not open the housing while connected to power. Internal components are not user-serviceable.

Package Contents

Carefully unpack the fixture and verify all components are present and undamaged.

ItemQuantityDescription
LHT0346 Fixture Body1Main LED light assembly with housing
Mounting Bracket Kit1 SetIncludes brackets, bolts, and anchors for surface, pendant, or trunnion mounting
Wire Connectors3Waterproof wire nuts (Line, Neutral, Ground)
Installation Manual1This document
Safety & Compliance Leaflet1Warranty and regulatory information

If any items are missing or damaged, contact your supplier immediately. Do not proceed with installation.

Product Overview & Dimensions

The LHT0346 features a streamlined, low-profile design for optimal light distribution. Key components are identified below.

Dimensions (L x W x H): 48.0" x 6.5" x 3.8" (1219mm x 165mm x 97mm).
Weight: 15.4 lbs (7.0 kg).

Technical Specifications

Mounting Instructions

Choose the appropriate mounting method for your application: Surface, Pendant, or Trunnion Mount.

  1. Plan Location: Ensure the mounting surface is structurally sound and can support the fixture's weight. Maintain recommended clearance from combustible materials.
  2. Prepare Mounting Surface: Mark drill holes using the provided bracket as a template.
  3. Surface Mount:
    • Attach the mounting brackets to the fixture using the supplied M6 bolts.
    • Position the fixture against the ceiling or wall.
    • Secure the brackets to the surface using appropriate fasteners (not included for concrete/metal).
  4. Pendant Mount:
    • Attach the pendant rods (customer supplied) to the mounting points on the fixture.
    • Secure the opposite end of the rods to the ceiling structure.
    • Ensure all connections are tight and the fixture is level.
  5. Final Check: Gently tug on the fixture to confirm it is securely fastened.

CAUTION! Do not overtighten mounting hardware, as this may damage the fixture housing or compromise the seal.

Electrical Wiring

All wiring must comply with NEC (National Electrical Code) and local regulations.

  1. Power Off: Confirm power is OFF at the circuit breaker. Use a voltage tester to verify.
  2. Access Wiring Compartment: Remove the cover of the wiring compartment by loosening the captive screws.
  3. Feed Wires: Remove the appropriate knockout(s). Feed the supply wires (Line - Black, Neutral - White, Ground - Green) through a conduit connector into the compartment.
  4. Make Connections: Connect the fixture wires to the supply wires using the provided waterproof wire connectors.
    • Fixture Black (L) to Supply Black (Line/Hot)
    • Fixture White (N) to Supply White (Neutral)
    • Fixture Green/Yellow (⏚) to Supply Green (Ground)
  5. Secure & Seal: Tuck wires neatly into the compartment. Ensure the wire connectors are fully seated. Reinstall the cover, making sure the silicone gasket is properly aligned and the screws are tightened evenly to ensure a watertight seal.

WARNING! Incorrect wiring can cause permanent damage to the fixture and void the warranty. Double-check all connections.

Configuration & Setup

The LHT0346 has a simple DIP switch bank inside the wiring compartment for basic configuration.

  1. Access DIP Switches: With power OFF, open the wiring compartment cover.
  2. Color Temperature Selection:
    • Switch 1: OFF = 4000K (Cool White)
    • Switch 1: ON = 5000K (Daylight)
  3. Optional Dimming (0-10V):
    • Switch 2: OFF = Dimming Disabled (Fixture runs at 100%).
    • Switch 2: ON = Dimming Enabled. Connect the purple (V+) and gray (V-) dimming wires from the fixture to your compatible 0-10V dimmer controller.
  4. Close Compartment: After setting switches, securely close the wiring compartment.

Note: Changes to DIP switches only take effect after a power cycle (turn power OFF and ON).

Commissioning & Testing

  1. Final Inspection: Verify all mounting hardware is tight, wiring compartment is sealed, and the lens is clean and secure.
  2. Restore Power: Turn ON power at the circuit breaker.
  3. Initial Operation: The fixture should illuminate immediately. Observe for a stable, uniform light output with no flickering.
  4. Dimming Test (if enabled): Operate the connected 0-10V dimmer through its full range to ensure smooth dimming from 100% down to the minimum level (typically 10%).
  5. Thermal Check: Allow the fixture to operate for 30 minutes. The housing will become warm; this is normal. It should not be excessively hot to the touch.

Tip: It is recommended to commission a single fixture first before installing an entire batch.

Maintenance

Regular maintenance ensures optimal performance and longevity.

CAUTION! Always disconnect power before performing any inspection or cleaning.

Troubleshooting

SymptomPossible CauseCorrective Action
Fixture does not turn onNo power supply
Incorrect wiring
Internal fault
Check circuit breaker/power source.
Verify wiring connections (L, N, G).
Contact technical support.
Flickering or unstable lightLoose connection
Incompatible dimmer
Voltage fluctuation
Check all wire terminations.
Disable dimming (Switch 2 OFF) to test.
Verify supply voltage is within 100-277V AC.
Dimming not workingDimmer not compatible/configured
DIP switch not set
Wiring error
Use a certified 0-10V dimmer.
Set Switch 2 to ON.
Check dimmer wire connections (Purple/V+, Gray/V-).
Reduced light outputLens is dirty
Ambient temperature too high
Aging of LED
Clean the lens.
Ensure adequate ventilation.
Normal depreciation over time.
Water inside fixtureSeal compromised
Gasket misaligned
Immediately disconnect power.
Inspect and reseal wiring compartment cover. Contact support if seal is damaged.

Warranty & Support

The Simx LHT0346 is covered by a 5-year limited warranty from the date of purchase against defects in materials and workmanship under normal use. The warranty does not cover damage from misuse, improper installation, unauthorized modification, or acts of nature.

For Technical Support or Warranty Service:

This product complies with applicable FCC rules and regulations. Changes not expressly approved by Simx could void the user's authority to operate the equipment.

Simx LHT0346 Installation Manual © - All Rights Reserved 2025