Eaton Cutler-Hammer CHBWH2225 2-Pole 225A Main Circuit Breaker Instruction Manual

1. Introduction

This manual provides essential information for the safe and effective installation, operation, and maintenance of the Eaton Cutler-Hammer CHBWH2225 2-Pole 225A Main Circuit Breaker. Please read this manual thoroughly before proceeding with any installation or operation to ensure proper function and safety.

2. Safety Information

WARNING: Risk of electric shock or fire. Installation and servicing must be performed by qualified personnel only. Always disconnect power at the main service panel before working on electrical equipment.

• Ensure all local and national electrical codes are followed during installation.
• Wear appropriate personal protective equipment (PPE), including insulated gloves and safety glasses.
• Verify that the circuit breaker's voltage and current ratings match the electrical system requirements.
• Do not attempt to modify the circuit breaker in any way.
• Keep children away from electrical panels and equipment.

3. Product Overview

The Eaton Cutler-Hammer CHBWH2225 is a 2-pole, 225 Amp main circuit breaker designed for use in compatible load centers and panelboards. It provides overcurrent protection for electrical circuits.

3.1. Components

• Operating Handle: Used to manually switch the breaker ON or OFF, and indicates TRIP status.
• Terminal Lugs: Connections for incoming and outgoing electrical wires.
• Rating Label: Provides essential specifications such as amperage, voltage, and interrupting capacity.

Figure 1: Front and side view of the Eaton Cutler-Hammer CHBWH2225 circuit breaker, showing the operating handle, rating label, and terminal connections. Reference number: 4009064939.

Figure 2: Front view of the circuit breaker, highlighting the ON/TRIP/OFF positions of the handle and the 225 Amp rating.

Figure 3: Close-up view of the circuit breaker's rating label, displaying specifications such as 225 Amp, 120/240V, 2-Pole, Cat. BWH2225, and wire torque requirements.

4. Setup and Installation

IMPORTANT: All installation procedures must be performed by a licensed electrician in accordance with all applicable electrical codes.

1. Power Disconnection: Before beginning any work, ensure that all power to the electrical panel is completely disconnected at the main service entrance. Verify with a voltage tester.
2. Panel Access: Open the electrical panel cover to access the bus bars and mounting points.
3. Mounting: Align the circuit breaker with the appropriate mounting slots or clips in the load center or panelboard. Ensure it is securely seated.
4. Wire Connections: Connect the main incoming electrical wires to the terminal lugs of the circuit breaker. Ensure proper polarity and tight connections. Refer to the rating label for appropriate wire sizes (CU/AL 2-300) and torque specifications (250 Lb in).


Figure 4: Side view of the circuit breaker, showing the terminal lugs where electrical wires are connected. Proper wire insertion and torque are critical for safe operation.

5. Panel Closure: Once all connections are secure and verified, replace the electrical panel cover.
6. Power Restoration: Carefully restore power to the main service panel.

5. Operating Instructions

The circuit breaker's handle indicates its status:

• ON: The handle is fully pushed to the 'ON' position. Power is flowing through the circuit.
• OFF: The handle is fully pulled to the 'OFF' position. Power to the circuit is disconnected.
• TRIP: The handle is in an intermediate position, typically between 'ON' and 'OFF'. This indicates an overcurrent or short-circuit condition has occurred, and the breaker has automatically disconnected power for safety.

5.1. Resetting a Tripped Breaker

1. Identify Cause: Determine and correct the cause of the trip (e.g., overloaded circuit, short circuit).
2. Full OFF: Push the handle firmly to the 'OFF' position. You may feel a click.
3. Turn ON: Push the handle firmly to the 'ON' position.
4. If the breaker immediately trips again, do not attempt to reset it. Contact a qualified electrician.

6. Maintenance

The Eaton Cutler-Hammer CHBWH2225 circuit breaker requires minimal maintenance. Regular inspection is recommended.

• Annual Inspection: Have a qualified electrician inspect the circuit breaker and its connections annually for signs of wear, corrosion, or loose connections.
• Cleaning: Ensure the area around the circuit breaker is free from dust and debris. Do not use liquids for cleaning inside the electrical panel.
• Testing: Do not routinely test the trip mechanism by intentionally creating a fault. This can degrade the breaker's performance over time.

Figure 5: Top view of the circuit breaker, showing ventilation slots. Ensure these are not obstructed to allow for proper heat dissipation.

Figure 6: Back view of the circuit breaker, showing the mounting surface and additional product labeling.

7. Troubleshooting

If you experience issues with your circuit breaker, consider the following:

• Breaker Trips Frequently: This usually indicates an overloaded circuit or a short circuit. Reduce the load on the circuit or inspect for faulty wiring/appliances. If the problem persists, consult an electrician.
• Breaker Will Not Reset: Ensure the handle is pushed fully to the 'OFF' position before attempting to turn it 'ON'. If it still won't reset, there may be a persistent fault or the breaker itself could be damaged. Do not force the handle.
• No Power to Circuit (Breaker ON): Check other breakers in the panel. Verify main power supply. If the breaker is ON but no power is present, there might be a wiring issue or a faulty breaker.

If you are unable to resolve an issue, contact a qualified electrician for assistance.

8. Specifications

9. Warranty and Support

9.1. Warranty Information

This Eaton Cutler-Hammer CHBWH2225 circuit breaker comes with a 1-year manufacturer's warranty. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use.

9.2. Customer Support

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Eaton Cutler-Hammer customer support. Refer to the official Eaton website or product packaging for the most current contact information.