IP67 Waterproof AC/DC LED Power Supply User Manual

1. Product Overview

This Wide Voltage IP67 Waterproof Power Supply is a robust, sealed switching power supply designed for demanding indoor and outdoor applications. Its universal AC input, selectable DC output, and true IP67 waterproof rating make it an ideal, reliable power source for LED lighting systems, security equipment, communications devices, and other low-voltage electronics in diverse environments.

2. Critical Safety Instructions & Warnings

THIS DEVICE CONNECTS TO HIGH-VOLTAGE MAINS POWER. IMPROPER INSTALLATION OR USE CAN CAUSE ELECTRIC SHOCK, FIRE, OR SERIOUS INJURY. READ ALL INSTRUCTIONS COMPLETELY BEFORE PROCEEDING.

2.1 General & Electrical Safety

1. INSTALLATION BY QUALIFIED PERSONNEL: Installation and electrical connection must be performed by a qualified electrician or individual with adequate knowledge of local electrical codes and regulations.
2. DISCONNECT ALL POWER: Always disconnect the unit from the AC mains power supply before performing any installation, wiring, maintenance, or inspection.
3. DO NOT OPEN OR MODIFY: The unit is hermetically sealed to achieve its IP67 rating. Opening the housing will permanently break the waterproof seal, void all warranties, and expose you to dangerous voltages. There are no user-serviceable parts inside.
4. GROUNDING (EARTHING) IS MANDATORY: This unit must be properly grounded (earthed) through the provided grounding terminal or via the mounting surface if metallic. Ensure a secure earth connection to prevent electric shock.
5. CORRECT INPUT VOLTAGE: While the unit accepts a wide input range (AC 110-250V), you must ensure the local mains voltage falls within this range. The unit is auto-sensing; no manual adjustment is needed.
6. USE WITH APPROVED CABLES ONLY: Use only outdoor-rated, insulated cables of sufficient gauge (wire thickness) for both the AC input and DC output connections. Cables must be rated for the maximum current of your specific model and for the ambient temperature.

2.2 Installation & Environmental Warnings

1. IP67 RATING EXPLANATION: The unit is certified IP67 (Dust-tight and Protected against Immersion). It can withstand temporary submersion in water up to 1 meter for 30 minutes and is completely dust-tight.
2. PROPER SEALING OF CONNECTIONS IS CRITICAL: The IP67 rating applies ONLY when all cable entries are properly sealed using waterproof cable glands or conduit connectors of appropriate size. The standard unit is supplied without these glands; you must procure and install them to maintain the waterproof integrity.
3. OPERATING TEMPERATURE LIMITS: Operate only within the specified ambient temperature range of -20°C to +50°C. Do not install in locations where the temperature may exceed these limits, such as in direct sunlight without shade, inside unventilated metal boxes, or near heat-generating equipment. Operating outside this range will reduce efficiency, trigger protection circuits, or cause permanent damage.
4. MOUNTING & VENTILATION: Mount the unit securely using the provided holes. Although sealed, the unit dissipates heat through its metal housing. For optimal performance and longevity, mount it on a thermally conductive surface (e.g., metal chassis) if possible, and ensure at least 50mm of clearance around the housing, especially the grooved sides, to allow for heat dissipation. Do not cover the unit or bury it.
5. AVOID CONDENSATION: While waterproof, avoid installations where rapid temperature changes could cause significant condensation inside connected conduit or cables. In such environments, use drip loops and install the unit in a relatively stable room temperature location.

3. Setup (Installation & Wiring Guide)

3.1 Step 1: Planning & Preparation

1. Select an installation location that is dry, within the operating temperature range, and accessible for wiring. Ensure the location can support the unit's weight.
2. Procure necessary accessories: You will need:
   • Waterproof Cable Glands (PG size or Metric thread): One for AC input cable and one for each DC output cable. Choose the correct gland size for your cable diameter.
   • Suitable outdoor/rated cables for input (AC) and output (DC).
3. Disconnect all power sources to avoid electric shock during installation.

3.2 Step 2: Mounting the Unit

1. Secure the power supply to a stable surface (wall, panel, pole) using the mounting holes and appropriate screws/bolts.
2. Ensure the mounting surface is flat and solid to prevent the unit from shaking or loosening over time.

3.3 Step 3: Making Electrical Connections (CRITICAL)

AC Input Connection (L/N/# or L1/L2/# for 240V):

1. Pass the AC power cable through a waterproof cable gland installed in the AC input port.
2. Connect the wires to the terminal block inside the designated compartment: Live (L/brown), Neutral (N/blue), and Ground/Earth (#/green-yellow). Tighten screws securely to ensure good electrical contact.
3. Tighten the waterproof gland around the cable to create a reliable seal against water and dust.

DC Output Connection & Voltage Selection:

1. Set the Voltage Switch: Locate the 12V/24V selector switch on the unit. Set it to match your device's required voltage (12V or 24V) before connecting any load.
2. Pass the DC output cable(s) through its own waterproof cable gland(s) corresponding to the DC output port(s).
3. Connect the wires to the DC output terminal block: Positive (+/Vt) and Negative (-/V- or COM). For dual-port models, ensure you understand the terminal configuration (usually common negative).
4. Tighten the output cable gland(s) firmly to maintain the IP67 waterproof rating.

Seal All Entry Points: Ensure every cable entry point is sealed with a properly tightened waterproof gland. No openings should remain on the unit housing.

3.4 Step 4: Final Check & Power On

1. Visually inspect all connections for tightness, correct wiring sequence, and polarity.
2. Ensure the AC and DC cables are securely routed and not under tension, which could damage the connections over time.
3. Briefly apply AC power to the unit. An LED indicator (if present on your model) should light up, indicating normal power input.
4. Use a multimeter to verify the DC output voltage is correct (12V or 24V) before connecting your final load device.

4. Operating (Load & Operation Warnings)

1. DO NOT EXCEED RATED OUTPUT: Never connect a load that exceeds the maximum output current (Amps) or power (Watts) of your specific model. Continuous overloading will cause overheating, trigger protection, and shorten the product's life. It is recommended to use the unit at 80-90% of its maximum rated capacity for long-term reliability.
2. VOLTAGE SELECTION SWITCH (12V/24V): Before connecting your load, ensure the output voltage switch is set to the correct position (12V or 24V) matching your device's requirements. Applying incorrect voltage can destroy connected equipment.
3. POLARITY: Observe correct polarity (Positive [+] and Negative [-]) when connecting DC output to your load. Reverse polarity can damage both the load and the power supply.

5. Maintenance

1. Regular Inspection: Periodically (every 6-12 months) inspect the unit for physical damage, corrosion, and the integrity of all cable glands and seals. Ensure the mounting screws remain secure and the unit is not loose.
2. Cleaning: Wipe the exterior surface of the unit with a damp cloth to remove dust and dirt. Do not use high-pressure water jets directly on cable glands, as this may damage the seals.
3. Do Not Attempt Internal Repairs: The unit has no user-serviceable parts inside. Any attempt to open or repair the internal components will void the warranty and pose a serious safety hazard. Contact professional maintenance personnel if needed.

6. Troubleshooting

6.1 No Output Power (LED off, no voltage)

1. Verify AC mains power is present at the input by testing the outlet with another working device.
2. Check all AC wiring connections (L, N, GND) are secure and correctly connected to the terminal block.
3. Check that any external fuses or circuit breakers on the AC power line are not tripped; reset them if necessary.
4. The internal protection may have been triggered due to overload or short circuit. Disconnect AC power for 5 minutes, then reconnect to reset the protection circuit.

6.2 Output Voltage is Incorrect or Unstable

1. Verify the position of the 12V/24V selection switch; it may be set to the wrong voltage for your load.
2. The load may be exceeding the power supply's rated capacity, causing it to shut down or reduce output voltage. Disconnect the current load and test with a smaller, known-good device to confirm.
3. Check for loose or corroded DC output connections; clean and retighten the terminals if needed.

6.3 Power Supply Cuts Off Intermittently or Under Load

1. Overheating: The unit is likely overheating due to high ambient temperature or insufficient ventilation. Check the ambient temperature and ensure at least 50mm of clearance around the housing. Reduce the load if it is near the maximum rated capacity.
2. Over-Current Protection: The connected load is drawing too much current, triggering the over-current protection. Measure the load current with a multimeter and ensure it is below the rated current for your specific model.
3. Intermittent Short Circuit: Check the DC output wiring and the load device for intermittent short circuits that may trigger the protection system.

6.4 Water Ingress or Moisture Inside

1. IMMEDIATELY DISCONNECT AC POWER to prevent electric shock and internal component damage.
2. This issue indicates a failed seal at a cable gland or physical damage to the unit housing. Do not use the unit until it has been completely dried out internally by a professional technician and all seals have been replaced. The IP67 waterproof rating is likely compromised.

6.5 Audible Hum or Buzzing

1. A slight, low-level hum is normal during operation and does not indicate a problem.
2. A loud, persistent buzz may indicate a failing internal component or that the unit is operating at the extreme limit of its input voltage range. Check your local AC mains voltage to ensure it falls within the 110-250V range.

7. Specifications

8. User Tips

• Optimal Performance: For long-term reliability and to prevent overheating, operate the power supply at 80-90% of its maximum rated capacity.
• Cooling Clearance: Ensure at least 50mm of clearance around the unit, especially the grooved sides, to facilitate proper heat dissipation and maintain cooler operating temperatures.
• Voltage Verification: Always use a multimeter to confirm the DC output voltage is correctly set (12V or 24V) before connecting any sensitive load devices to prevent damage.
• Secure Connections: Double-check all wiring connections for tightness and correct polarity to ensure stable power delivery and prevent issues like intermittent power cuts.

9. Warranty & Disposal

1. This product is covered by a limited warranty against manufacturing defects under normal use and installation conditions.
2. The warranty is void if the unit is opened, modified, improperly installed (especially regarding waterproofing requirements), subjected to conditions outside its specified parameters, or damaged by overload, reverse polarity, or water ingress due to poor sealing.
3. At end of life, dispose of this product as electronic waste in compliance with all local WEEE (Waste Electrical and Electronic Equipment) regulations. Do not dispose of the unit with household waste.