KEMXUDEL TOB1Z-63 DC Circuit Breaker User Manual

1. Introduction

This user manual provides essential information for the safe and effective installation, operation, and maintenance of the KEMXUDEL TOB1Z-63 DC Miniature Circuit Breaker. This device is designed to protect DC circuits from overcurrents resulting from overloads or short circuits, ensuring the safety of electrical systems and equipment.

Please read this manual thoroughly before installation and operation. Keep this manual for future reference.

2. Important Safety Information

WARNING: Risk of Electric Shock or Fire

• Installation and maintenance must be performed by qualified personnel only.
• Always disconnect power before working on electrical circuits or equipment.
• Ensure the circuit breaker's voltage and current ratings match your application's requirements.
• Do not use this device in environments exceeding its specified operating conditions (temperature, humidity, etc.).
• Never bypass or tamper with the circuit breaker.
• Use appropriate personal protective equipment (PPE) when working with electricity.

3. Product Overview

The KEMXUDEL TOB1Z-63 is a 2-pole DC miniature circuit breaker designed for reliable circuit protection. It features a compact design for DIN rail mounting and clear indicators for its operational status.

Figure 3.1: Front view of the KEMXUDEL TOB1Z-63 DC Circuit Breaker, showing the model number, CE certification, and the yellow operating levers.

Figure 3.2: Angled view of the circuit breaker, highlighting its compact form factor and the terminal connections at the top and bottom.

Figure 3.3: Side view of the circuit breaker, showing the DIN rail mounting clip at the bottom and the overall depth of the unit.

4. Technical Specifications

Note: The rated current in the product title is 20A, while the description states DC63A. Please verify the specific rating of your purchased unit. This manual assumes the 20A rating as per the product title.

5. Installation (Setup)

The KEMXUDEL TOB1Z-63 circuit breaker is designed for easy installation on a standard 35mm DIN rail. Ensure all safety precautions are followed before beginning installation.

5.1 Pre-installation Checks

• Verify that the power supply to the circuit is completely disconnected and locked out.
• Confirm that the circuit breaker's specifications (voltage, current, poles) match the requirements of your DC electrical system.
• Inspect the circuit breaker for any physical damage. Do not install if damaged.

5.2 Mounting on DIN Rail

1. Hook the top edge of the circuit breaker onto the top lip of the 35mm DIN rail.
2. Press the bottom of the circuit breaker firmly until it clicks into place on the DIN rail. Ensure it is securely fastened.

5.3 Wiring Connections

Connect the DC input and output wires to the appropriate terminals. The terminals are typically marked with '+' and '-' for polarity, and '1' and '3' for input, '2' and '4' for output. Refer to the markings on the device for correct polarity and connection points.

• Loosen the terminal screws.
• Insert the stripped ends of the DC wires into the corresponding terminals. Ensure proper polarity (+ to + and - to -).
• Tighten the terminal screws securely to prevent loose connections, which can cause overheating or arcing.
• Double-check all connections for correct polarity and tightness.

Figure 5.1: Back view of the circuit breaker, illustrating the DIN rail mounting mechanism.

6. Operation

Once installed and wired correctly, the circuit breaker is ready for operation.

6.1 Switching On

• Ensure all downstream loads are in a safe state (e.g., turned off or in standby).
• Push the yellow operating levers upwards to the "ON" position. The circuit breaker is now closed, and power is supplied to the protected circuit.

6.2 Switching Off

• To manually disconnect power, push the yellow operating levers downwards to the "OFF" position.

6.3 Automatic Tripping

The circuit breaker will automatically trip to the "OFF" position if an overcurrent (overload or short circuit) occurs in the protected DC circuit. This is its primary safety function.

• If the breaker trips, investigate the cause of the overcurrent (e.g., faulty appliance, short circuit in wiring).
• Do not attempt to reset the breaker until the fault has been identified and rectified.

7. Maintenance

The KEMXUDEL TOB1Z-63 circuit breaker requires minimal maintenance. Regular visual inspections are recommended to ensure optimal performance and safety.

• Periodic Inspection: Annually, or more frequently in harsh environments, visually inspect the circuit breaker for any signs of physical damage, discoloration, or loose connections.
• Cleaning: If necessary, gently clean the exterior of the circuit breaker with a dry, soft cloth. Do not use abrasive cleaners or solvents. Ensure power is disconnected before cleaning.
• Terminal Tightness: Periodically check the tightness of the terminal screws to ensure secure electrical connections.
• Replacement: If the circuit breaker shows signs of damage, frequent tripping without an apparent fault, or fails to operate correctly, it should be replaced by a qualified electrician.

8. Troubleshooting

This section addresses common issues you might encounter with your circuit breaker.

For issues not covered here, or if you are unsure about any troubleshooting steps, please contact a qualified electrician.

9. Warranty and Support

For specific warranty information regarding your KEMXUDEL TOB1Z-63 DC Circuit Breaker, please refer to the documentation provided at the time of purchase or contact your retailer/seller directly. Warranty terms typically cover manufacturing defects.

For technical support or inquiries, please reach out to the seller or manufacturer through the contact information provided with your purchase or on their official website.

Manufacturer: KEMXUDEL