1. Selelekela
This manual provides essential information for the safe and proper installation, operation, and maintenance of the Eaton Cutler-Hammer CHB120 1-Pole 20A Circuit Breaker. This device is designed to protect electrical circuits from overcurrents and short circuits, ensuring the safety of your electrical system and connected equipment. Please read this manual thoroughly before any installation or operation.
2. Boitsebiso ba Tšireletseho
TLHOKOMELISO: Electrical shock hazard. Improper installation or maintenance can result in serious injury or death. All work on electrical systems should be performed by qualified personnel only. Always disconnect power at the main service panel before working on or near circuit breakers.
- Ensure all power is OFF before installation or servicing.
- Sebelisa thepa e loketseng ea ho itšireletsa (PPE).
- Netefatsa voltage and current ratings match your application.
- Do not use damaged circuit breakers.
- Latela likhoutu tsohle tsa motlakase tsa lehae le tsa naha.
3. Likarolo tsa lihlahisoa
- Mohlala: CHB120
- Lipalo: 1 Palo
- Moqtage Reiti: Li-volts tsa 120 / 240
- Lintlha tsa Hona Joale: 20 Amp
- Lintlha tse sitisang: 10kA@120V
- Mofuta: Sesenyi se Tloaelehileng sa Potoloho
- Ho hlongoa: Thaba ea Panel
4. Litlhaloso
| Tlhaloso | Boleng |
|---|---|
| Brand | Eaton |
| Nomoro ea Mohlala | CHB120 |
| Boemo ba Hona Joale | 20 Amps |
| Moqtage Tekanyetso | Li-volts tsa 120/240 |
| Palo ea lipalo | 1 |
| Mofuta oa Sesebelisoa sa Potoloho | Standard |
| Mofuta oa ho Beha | Thaba ea Panel |
| Lintlha tse sitisang | 10kA@120V |
| Litekanyo tsa Sehlahisoa | 7 x 7 x 7 lisenthimithara (hoo e ka bang) |
| Boima ba Ntho | 7 lik'hilograma (hoo e ka bang) |
| UPC | 704798904778 |
5. Ho kenya
Installation of circuit breakers should only be performed by a qualified electrician in accordance with all applicable electrical codes and standards. The following steps are for informational purposes only and do not substitute for professional expertise.
- Hakolla Matla: Tima motlakase oa mantlha phanele ea motlakase mithareng ea ts'ebeliso kapa ho hakolla motlakase. Netefatsa hore motlakase o tima ka ho sebelisa voltagmohlahlobi.
- Remove Panel Cover: Tlosa ka hloko sekoahelo sa phanele ea motlakase.
- Tseba Sebaka: Locate an available slot on the bus bar for the 1-pole CHB120 circuit breaker.
- Kenya Breaker: Hook the rear of the circuit breaker onto the retaining clip on the panel's bus bar. Press the front of the breaker firmly until it snaps into place.
- Hokela Wiring: Connect the circuit wire (hot wire) to the terminal screw on the circuit breaker. Ensure the wire is properly stripped and the screw is tightened to the manufacturer's specified torque.
- Replace Panel Cover: Once all connections are secure and verified, replace the electrical panel cover.
- Khutlisa Matla: Bulela phepelo ea mantlha ea motlakase hape.

Figure 1: Eaton Cutler-Hammer CHB120 1-Pole 20A Circuit Breaker. This image displays the Eaton Cutler-Hammer CHB120 circuit breaker, a single-pole device with a 20 Amp rating. It features a white toggle switch for ON/OFF/TRIPPED states and screw terminals for electrical connections. The model number 'CHB120' is visible on the label.
6. Ts'ebetso
The CHB120 circuit breaker has three primary positions for its toggle switch:
- BULELA: The circuit is energized, and power is flowing. The toggle is typically pushed fully towards the "ON" marking.
- TIMA: The circuit is de-energized, and power is interrupted. The toggle is typically pushed fully towards the "OFF" marking.
- TRIPPED: When an overcurrent or short circuit occurs, the breaker automatically trips to protect the circuit. The toggle will move to an intermediate position, usually between ON and OFF. To reset a tripped breaker, first push the toggle firmly to the full OFF position, then push it to the full ON position.
7. Tlhokomelo
Circuit breakers generally require minimal maintenance. However, periodic visual inspection is recommended:
- Inspect for any signs of physical damage, discoloration, or burning.
- Ensure all connections are tight. (TLHOKOMELISO: Disconnect power before checking connections).
- Keep the electrical panel area clean and free from obstructions.
8. Ho rarolla mathata
If your CHB120 circuit breaker frequently trips, consider the following:
- Overloaded Circuit: The most common cause of tripping. Disconnect some appliances or devices from the circuit to reduce the load.
- Potoloho e Khutšoanyane: A direct connection between hot and neutral/ground wires can cause a trip. Inspect wiring and connected devices for damage.
- Phoso ea Motheo: If current leaks to the ground, it can cause a trip (though this breaker is not a GFCI).
- Faulty Appliance/Device: A malfunctioning appliance connected to the circuit can cause repeated tripping. Unplug devices one by one to identify the culprit.
- Faulty Breaker: In rare cases, the circuit breaker itself may be defective. If all other causes are ruled out, consult a qualified electrician for inspection and potential replacement.
If you are unable to resolve the issue, contact a qualified electrician.
9. Tiisetso le Tšehetso
Specific warranty information for the Eaton Cutler-Hammer CHB120 circuit breaker is typically provided at the point of purchase or included with the product packaging. For detailed warranty terms, technical support, or service inquiries, please refer to the official Eaton website or contact Eaton customer service directly.
You can visit the Eaton websaete bakeng sa lintlha tse ling: www.eaton.com





