Cutler Hammer CH220 2P 20A 120/240VAC Type CH Circuit Breaker User Manual

1. Introduction

This manual provides essential information for the safe and proper use, installation, and maintenance of the Cutler Hammer CH220 2-Pole, 20 Amp, 120/240VAC Type CH Circuit Breaker. Please read all instructions carefully before proceeding with installation or operation. This device is designed to protect electrical circuits from overcurrents, which can lead to damage to equipment or fire hazards.

2. Important Safety Information

WARNING: Risk of Electric Shock and Fire Hazard.

• Installation, servicing, and replacement of this circuit breaker must be performed by a qualified electrician in accordance with all national and local electrical codes and regulations.
• Always disconnect all power to the electrical panel at the main service disconnect before attempting any work on the panel or circuit breakers.
• Do not touch live electrical parts. Use appropriate personal protective equipment (PPE).
• Verify that the circuit breaker's ratings (voltage, amperage, and type) are compatible with your electrical system and panel.
• Never use a circuit breaker that appears damaged or has been exposed to water.
• Failure to follow these instructions can result in serious injury, death, or property damage.

3. Product Overview

The Cutler Hammer CH220 is a high-quality 2-pole circuit breaker designed for reliable overcurrent protection in residential and commercial electrical systems. It is specifically designed for use in Cutler Hammer Type CH load centers.

Key Features:

• Provides overcurrent protection for electrical circuits.
• 2-pole design for 120/240VAC systems.
• 20 Amp current rating.
• Type CH compatibility for seamless integration into Cutler Hammer panels.

Figure 3.1: Front and side view of the Cutler Hammer CH220 circuit breaker, showing the 'COMMON TRIP' label and the two distinct breaker units.

Figure 3.2: Side view of the Cutler Hammer CH220 circuit breaker, displaying the current interrupting rating and other technical specifications printed on its casing.

Figure 3.3: Top view of the Cutler Hammer CH220 circuit breaker, illustrating the two 'OFF' positions of the operating levers.

4. Setup and Installation

IMPORTANT: All installation procedures must be performed by a qualified electrician. Incorrect installation can lead to severe injury, death, or property damage.

1. Power Disconnection: Before beginning any work, ensure that the main power supply to the electrical panel is completely disconnected and locked out according to safety protocols. Verify with a voltage tester that no power is present.
2. Compatibility Check: Confirm that the Cutler Hammer CH220 (2-pole, 20A, 120/240VAC, Type CH) is the correct breaker type and rating for your specific electrical panel and the circuit it will protect.
3. Installation:
   • Carefully align the circuit breaker with the appropriate slot on the bus bar within the load center.
   • Press the breaker firmly onto the bus bar until it is securely seated.
   • Connect the load wires to the designated terminals on the circuit breaker. Ensure all connections are tight and secure, following torque specifications if provided by the panel manufacturer.
   • Route wires neatly and ensure they do not interfere with the panel cover or other components.
4. Panel Cover: Replace the electrical panel cover, ensuring all openings are properly covered.
5. Restore Power: Once installation is complete and verified by a qualified electrician, restore power to the main service disconnect.

5. Operating Instructions

The CH220 circuit breaker is designed for simple operation, primarily to switch power to a circuit on or off, and to automatically trip in case of an overcurrent.

• Turning ON: To energize a circuit, ensure the circuit breaker handle is in the fully 'OFF' position. Then, push the handle firmly to the 'ON' position.
• Turning OFF: To de-energize a circuit, push the handle firmly to the 'OFF' position.
• Resetting a Tripped Breaker: If the circuit breaker detects an overcurrent or short circuit, it will automatically trip. The handle will move to a central, tripped position (often between 'ON' and 'OFF'). To reset:
  1. First, push the handle completely to the 'OFF' position.
  2. Then, push it firmly to the 'ON' position.

  If the breaker trips repeatedly after resetting, this indicates a persistent electrical fault. Do not continue to reset the breaker. Consult a qualified electrician to diagnose and resolve the underlying issue.

6. Maintenance

The Cutler Hammer CH220 circuit breaker requires minimal maintenance, but periodic inspection is recommended to ensure continued safe operation.

• Visual Inspection: Periodically (e.g., annually), with power disconnected by a qualified electrician, visually inspect the circuit breaker for any signs of physical damage, such as cracks, discoloration, burning, or corrosion.
• Connections: A qualified electrician should periodically check for loose wire connections at the breaker terminals. Loose connections can cause overheating.
• Cleanliness: Keep the electrical panel interior clean and free from dust, debris, and moisture. Ensure proper ventilation around the panel.
• Replacement: Do not attempt to repair a damaged or malfunctioning circuit breaker. It must be replaced by a qualified electrician with an identical or approved equivalent model.

7. Troubleshooting

If you experience issues with your circuit breaker, refer to the following common scenarios. For all electrical issues, if you are unsure or uncomfortable, always consult a qualified electrician.

8. Specifications

9. Warranty and Support

For detailed warranty information, technical support, or to locate authorized service centers, please refer to the official CUTLER HAMMER website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.

Manufacturer: EATON CORPORATION