1. Introduction
This manual provides detailed instructions for the safe installation, operation, and maintenance of the Jung 505U Double Switch Mechanism. Please read this manual thoroughly before beginning installation or use to ensure proper function and safety.
2. Safety Instructions
- Electrical Hazard: Installation must be performed by a qualified electrician in accordance with all local and national electrical codes and regulations.
- Power Disconnection: Always disconnect power at the main circuit breaker before installing, servicing, or removing the switch mechanism. Verify power is off using a voltage tester.
- Voltage and Current: Do not exceed the specified voltage (250V~) and current (10 AX) ratings of this device.
- Proper Tools: Use appropriate insulated tools for electrical work.
- Environmental Conditions: Do not install in wet or excessively humid environments unless specifically rated for such conditions.
3. Product Overview
The Jung 505U is a double switch mechanism designed for controlling two separate lighting circuits or electrical loads from a single point. It features screw terminals for secure wiring connections.
Image 3.1: Front view of the Jung 505U Double Switch Mechanism. This image shows the two switch rockers and the mounting plate with screw holes.
Image 3.2: Angled view of the Jung 505U Double Switch Mechanism, showing the internal components and the metal mounting frame with "TOP" indicator.
4. Installation
Follow these steps carefully for the correct installation of the Jung 505U Double Switch Mechanism.
- Disconnect Power: Before starting, ensure the main power supply to the circuit is turned off at the consumer unit/circuit breaker. Use a voltage tester to confirm no power is present at the switch location.
- Prepare Wiring: Gently strip approximately 10-12mm of insulation from the ends of the electrical wires (Live, Switched Live 1, Switched Live 2, and Neutral if applicable, though this is a switch mechanism).
- Connect Wires:
- Identify the common live wire (input) and connect it to the designated common terminal (often marked 'L' or with an arrow pointing in).
- Connect the switched live wire for the first load to its respective terminal (e.g., 'L1' or '1').
- Connect the switched live wire for the second load to its respective terminal (e.g., 'L2' or '2').
- Ensure all screw terminals are tightened securely to prevent loose connections, which can cause overheating or arcing.
Image 4.1: Back view of the Jung 505U Double Switch Mechanism, illustrating the screw terminals for wiring connections. Note the 'TOP' indicator on the metal frame for correct orientation.
- Mount the Mechanism:
- Carefully push the wired mechanism into the wall box, ensuring wires are not pinched.
- Align the mounting plate with the screw holes in the wall box. The "TOP" marking on the metal frame should be oriented upwards.
- Secure the mechanism to the wall box using the provided screws.
- Attach Cover Plate: Once the mechanism is securely mounted, attach the appropriate Jung cover plate and rocker switches (sold separately) according to their instructions.
- Restore Power: Once installation is complete and all components are securely in place, restore power at the main circuit breaker.
5. Operating Instructions
The Jung 505U Double Switch Mechanism operates as a standard ON-OFF-ON switch for two independent circuits.
- Switching ON/OFF: Press the upper part of a rocker switch to turn the connected load ON. Press the lower part of the same rocker switch to turn the connected load OFF.
- Independent Control: Each rocker switch controls its own dedicated circuit independently.
6. Maintenance
- Cleaning: To clean the surface of the switch, use a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish.
- Inspection: Periodically inspect the switch for any signs of damage, loose connections, or discoloration. If any issues are observed, disconnect power and consult a qualified electrician.
- No User Serviceable Parts: The internal mechanism contains no user-serviceable parts. Do not attempt to disassemble the unit.
7. Troubleshooting
If you encounter issues with your Jung 505U Double Switch Mechanism, consider the following common troubleshooting steps:
- No Power to Load:
- Check if the circuit breaker for the switch is tripped. Reset if necessary.
- Ensure the switch is in the 'ON' position.
- Verify that the light bulb or connected appliance is functioning correctly.
- If the problem persists, disconnect power and check for loose wiring connections at the switch terminals. (Consult a qualified electrician).
- Switch Feels Loose:
- Disconnect power.
- Remove the cover plate and ensure the mechanism is securely fastened to the wall box with its mounting screws.
- Overheating/Burning Smell:
- IMMEDIATELY DISCONNECT POWER AT THE MAIN CIRCUIT BREAKER.
- This indicates a serious electrical fault. Do not attempt to fix it yourself. Contact a qualified electrician immediately.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Jung |
| Model Number | 505U |
| Operating Voltage | 250 V~ |
| Current Rating | 10 AX |
| Operating Mode | ON-OFF-ON |
| Contact Type | Normally Open |
| Connector Type | Screw Terminal |
| Material (Contact) | Brass |
| Material (General) | Copper (internal wiring), Metallic / White (housing/frame) |
| Dimensions (L x W x H) | 7.1 x 7.1 x 4 cm |
| Circuit Type | 2 Way |
9. Warranty and Support
Specific warranty information for the Jung 505U Double Switch Mechanism is typically provided by the retailer or the manufacturer at the point of purchase. Please refer to your purchase documentation or contact Jung customer support for details regarding warranty coverage and technical assistance.
For further support, please visit the official Jung website or contact your local distributor.
