Eltako NLZ61NP-UC Timer Relay Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Eltako NLZ61NP-UC Timer Relay. This device is designed for building installation and control technology applications, offering precise timing functions for various electrical circuits.

2. Safety Instructions

Always observe the following safety precautions:

• Installation and maintenance must only be performed by a qualified electrician.
• Disconnect power to the circuit before installation, wiring, or maintenance.
• Ensure all connections are secure and correctly wired according to the diagram.
• Do not exceed the specified voltage and current ratings of the device.
• Protect the device from moisture, dust, and extreme temperatures.
• This device is intended for indoor use only.

3. Product Overview

The Eltako NLZ61NP-UC is a compact timer relay designed for series installation. It features adjustable delay functions and robust terminal connections.

Figure 1: Eltako NLZ61NP-UC Timer Relay. This image displays the blue, octagonal-shaped timer relay with its various terminals and adjustment potentiometers. Visible labels include 'CE', 'Eltako NLZ61NP-UC', 'A1-A2 8-230V~', 'L-N 230V~', 'RV', 'AV', '12min', 'μ 10A/250V~', and connection points for L, N, and 3.

Key Components:

• A1-A2 Terminals: Control voltage input (8-230V~).
• L-N Terminals: Power supply input (230V~).
• 3 Terminal: Switched output (max. 10A/250V~).
• RV Potentiometer: Adjustable delay on release timer (0-12 minutes).
• AV Potentiometer: Adjustable delay on activation timer (0-12 minutes).

4. Setup and Installation

The NLZ61NP-UC is designed for series installation within an electrical distribution board or similar enclosure.

Installation Steps:

1. Power Disconnection: Ensure the main power supply to the installation area is completely disconnected before beginning any work.
2. Mounting: Mount the timer relay securely in the desired location, typically on a DIN rail within a suitable enclosure.
3. Wiring Power Supply (L-N): Connect the live (L) and neutral (N) wires of the 230V~ power supply to the corresponding L and N terminals on the device.
4. Wiring Control Voltage (A1-A2): Connect the control voltage (8-230V~) to the A1 and A2 terminals. This voltage triggers the timing functions.
5. Wiring Output (3): Connect the load to be switched to the '3' terminal. The other side of the load should be connected to the neutral (N) or live (L) depending on the circuit design. Ensure the load's current and voltage requirements do not exceed 10A/250V~.
6. Verify Connections: Double-check all wiring for correctness and security to prevent short circuits or malfunctions.
7. Restore Power: Once all connections are verified, restore power to the circuit.

5. Operating Instructions

The Eltako NLZ61NP-UC features two adjustable timing functions: delay on release (RV) and delay on activation (AV).

Setting the Timer Functions:

• RV (Delay on Release): Use the RV potentiometer to set the desired delay time after the control voltage (A1-A2) is removed. The output will remain active for the set duration before switching off. The range is 0 to 12 minutes.
• AV (Delay on Activation): Use the AV potentiometer to set the desired delay time after the control voltage (A1-A2) is applied. The output will activate after the set duration. The range is 0 to 12 minutes.
• Adjustment: Rotate the respective potentiometer (RV or AV) to align the indicator with the desired time value on the scale (0, 2, 4, 8, 12 minutes).

The specific behavior of the relay (e.g., which delay function is active or if both can be combined) depends on the internal configuration and application. Refer to the detailed wiring diagram provided with the product for specific operational modes.

6. Maintenance

The Eltako NLZ61NP-UC Timer Relay is designed for long-term, maintenance-free operation under normal conditions.

• Cleaning: If necessary, gently wipe the exterior of the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
• Inspection: Periodically inspect the wiring connections for any signs of loosening or damage. Ensure the device is free from dust and debris.
• No User-Serviceable Parts: The device contains no user-serviceable parts. Do not attempt to open or repair the unit.

7. Troubleshooting

If the timer relay does not function as expected, consider the following common issues:

If problems persist, contact a qualified electrician or Eltako customer support.

8. Specifications

9. Warranty and Support

For warranty information and technical support, please refer to the documentation provided with your purchase or contact Eltako customer service directly. Keep your proof of purchase for warranty claims.