Westinghouse EHB2020 4989D52G19 Circuit Breaker Instruction Manual

1. Entwodiksyon

This manual provides essential information for the safe installation, operation, and maintenance of the Westinghouse EHB2020 4989D52G19 Circuit Breaker. Please read this manual thoroughly before attempting any installation or operation. Retain this manual for future reference.

The Westinghouse EHB2020 4989D52G19 is a 2-pole, 20 Amp, 480VAC circuit breaker designed to protect electrical circuits from overcurrents and short circuits. It is suitable for industrial and commercial applications.

2. Enfòmasyon sou Sekirite

WARNING: Electrical shock hazard. Installation and servicing must be performed by qualified personnel only. Disconnect power before working on or near the circuit breaker.

• Always ensure the main power supply is disconnected before installing, removing, or servicing the circuit breaker.
• Sèvi ak ekipman pwoteksyon pèsonèl (PPE) ki apwopriye tankou gan izole ak linèt sekirite.
• Verifye tout koneksyon yo byen fèm epi yo byen sere dapre kòd elektrik lokal yo ak espesifikasyon manifakti a.
• Do not use this circuit breaker in environments exceeding its specified temperature or humidity ratings.
• Pa janm kontoune oswa tamper ak mekanis pwoteksyon disjonktè a.

3. Pwodwi souview

The Westinghouse EHB2020 4989D52G19 circuit breaker features a robust design for reliable circuit protection. Key components include the operating handle, trip indicator, and terminal connections.

Figi 1: Devan view of the Westinghouse EHB2020 4989D52G19 Circuit Breaker, showing the operating handle and rating label.

Figi 2: Detaye view of the circuit breaker's label, indicating model number EHB2020, current rating 20A, 2-pole configuration, and voltage ratings (480 VAC, 250 VDC).

4. Espesifikasyon

5. Enstalasyon ak Enstalasyon

Installation of this circuit breaker must be performed by a qualified electrician in accordance with all national and local electrical codes. Improper installation can result in serious injury or property damage.

5.1 Chèk Pre-Enstalasyon

• Verify that the circuit breaker's ratings (voltage, current, number of poles) match the requirements of the electrical system.
• Inspect the circuit breaker for any physical damage. Do not install damaged units.
• Ensure the panelboard or enclosure is suitable for the circuit breaker's dimensions and type.

5.2 Etap enstalasyon yo

1. Dekonekte pouvwa: Turn off the main power supply to the electrical panel where the circuit breaker will be installed. Verify zero voltage ak yon miltimèt.
2. Montaj: Securely mount the circuit breaker into the designated slot in the electrical panel. Ensure it is properly seated and latched.
3. Koneksyon fil elektrik: Connect the load and line wires to the appropriate terminals on the circuit breaker. Refer to the wiring diagram of your electrical panel for correct connections.

Figi 3: Top view showing the line terminals of the circuit breaker where incoming power is connected.

4. Koneksyon koupl: Tighten terminal screws to the manufacturer's specified torque settings to ensure proper electrical contact and prevent overheating.
5. Verifye enstalasyon: Double-check all connections and ensure no loose wires or debris are present.
6. Retabli pouvwa: Yon fwa enstalasyon an fini epi li verifye, retabli kouran an nan panèl elektrik la.

Figi 4: Anba view showing the load terminals of the circuit breaker where outgoing power to the circuit is connected.

6. Operasyon Enstriksyon

The circuit breaker operates with a simple ON/OFF mechanism. It is designed to automatically trip (turn off) in response to overcurrent or short-circuit conditions.

• Limen: Push the operating handle firmly to the 'ON' position.
• Etenn: Push the operating handle firmly to the 'OFF' position.
• Kondisyon bite: If the circuit breaker trips, the handle will move to an intermediate or 'TRIPPED' position (often between ON and OFF). To reset a tripped breaker, first push the handle completely to the 'OFF' position, then push it to the 'ON' position.

CAUTION: If the circuit breaker repeatedly trips, do not continuously reset it. This indicates an electrical fault that requires investigation by a qualified electrician.

7. Antretyen

The Westinghouse EHB2020 4989D52G19 circuit breaker requires minimal maintenance. Regular inspections are recommended to ensure continued safe operation.

• Enspeksyon vizyèl: Enspekte disjonktè a detanzantan pou nenpòt siy domaj fizik, dekolorasyon, oswa koneksyon ki lach.
• Netwayaj: Si sa nesesè, netwaye deyò disjonktè a dousman avèk yon twal sèk ki pa gen pousyè. Pa sèvi ak likid oswa pwodui netwayaj abrazif.
• Tcheke Koneksyon: During routine electrical system maintenance, verify that terminal connections remain tight.

WARNING: Always disconnect power before performing any maintenance or inspection.

NAN. Depanaj

Seksyon sa a adrese pwoblèm komen ou ka rankontre ak disjonktè ou a.

8.1 Circuit Breaker Trips Frequently

• Surcharge: Sikwi a ka ap pran twòp kouran. Dekonekte kèk aparèy oswa aparèy nan sikwi a.
• Kout sikwi: A direct connection between live and neutral/ground wires. This requires immediate investigation by an electrician.
• Fay Tè: Kouran ap koule nan tè a. Sa mande tou yon dyagnostik pwofesyonèl.
• Aparèy ki gen pwoblèm: A defective appliance connected to the circuit could be causing the trip. Unplug all devices and plug them back in one by one to identify the faulty one.

8.2 Circuit Breaker Does Not Reset

• Persistent Fault: If an overload or short circuit is still present, the breaker will not reset. Address the underlying electrical issue first.
• Damaged Breaker: The circuit breaker itself may be faulty and require replacement.

If troubleshooting steps do not resolve the issue, contact a qualified electrician for assistance.

9. Garanti ak sipò

For warranty information and technical support regarding your Westinghouse EHB2020 4989D52G19 Circuit Breaker, please refer to the official Westinghouse websit la oubyen kontakte depatman sèvis kliyan yo. Kenbe resi acha w la kòm prèv acha.

Sèvis Kliyan Westinghouse: Please visit the official Westinghouse websit la pou enfòmasyon kontak ak resous sipò.