Eaton BR120ST 1 Pole, 20A, Plug-in, 120/240 VAC, Type BR Shunt Trip Circuit Breaker User Manual

1. Introduzione

This manual provides essential information for the safe and effective installation, operation, and maintenance of the Eaton BR120ST 1 Pole, 20A, Plug-in, 120/240 VAC, Type BR Shunt Trip Circuit Breaker. Please read this manual thoroughly before attempting any installation or operation.

The Eaton BR120ST is a single-pole, 20 Amp circuit breaker designed for use in 120/240 VAC electrical systems. It features a shunt trip mechanism, allowing for remote electrical tripping of the breaker, enhancing safety and control in various applications.

2. Informazioni sulla sicurezza

ATTENZIONE: Rischio di scossa elettrica o incendio.

• Installation and servicing of this circuit breaker must be performed by qualified electrical personnel only.
• Prima di intervenire su circuiti o apparecchiature elettriche, scollegare sempre l'alimentazione dal pannello di servizio principale.
• Utilizzare dispositivi di protezione individuale (DPI) adeguati, tra cui guanti isolanti e protezioni per gli occhi.
• Assicurarsi che tutti i collegamenti elettrici siano sicuri e conformi alle normative elettriche nazionali e locali.
• Non utilizzare questo dispositivo se sembra danneggiato.

3. Prodotto finitoview

The Eaton BR120ST circuit breaker is designed to protect electrical circuits from overcurrents and short circuits. Its key features include:

• Tipo: BR Plug-in Circuit Breaker
• Poli: 1
• Ampera: 20A
• Voltage: 120 / 240 VAC
• Interrupting Rating (AIC): 10,000 Amps
• Caratteristica: Integrated Shunt Trip mechanism for remote tripping.

This device is manufactured by CUTLER HAMMER, a brand under Eaton, ensuring quality and reliability in electrical protection.

4. Configurazione e installazione

Installation of the BR120ST circuit breaker should only be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and all applicable local codes.

1. Disconnessione dell'alimentazione: Ensure all power to the electrical panel is turned OFF at the main disconnect before beginning installation. Verify with a voltagetester.
2. Identifica slot: Locate an available slot in your Type BR load center.
3. Installare l'interruttore: Align the circuit breaker with the bus bar and firmly push it into place until it is fully seated.
4. Connessioni dei cavi:
   • Connect the load wire(s) to the appropriate terminal(s) on the breaker.
   • For the shunt trip mechanism, connect the control wires to the designated terminals as per the wiring diagram provided with the product packaging (not included in this general manual).
   • Ensure all terminal screws are tightened to the manufacturer's specified torque.
5. Copertura del pannello: Replace the electrical panel cover, ensuring no wires are pinched.
6. Ripristina alimentazione: Ripristinare con cautela l'alimentazione al pannello di servizio principale.

Figure 1: The Eaton BR120ST 1 Pole, 20A, Plug-in, 120/240 VAC, Type BR Shunt Trip Circuit Breaker. This image shows the compact design and terminal connections of the breaker.

5. Istruzioni per l'uso

The BR120ST circuit breaker operates automatically to protect circuits from overloads and short circuits. It also features a shunt trip for remote operation.

5.1 Funzionamento normale

• Posizione ON: When the handle is in the "ON" position, power is supplied to the circuit.
• Posizione OFF: Moving the handle to the "OFF" position manually disconnects power to the circuit.
• Posizione di scatto: If an overload or short circuit occurs, the breaker will automatically trip, moving the handle to an intermediate position (often between ON and OFF, or fully OFF depending on the design).

5.2 Ripristino di un interruttore scattato

If the breaker trips, follow these steps:

1. Identificare la causa: Determine and correct the cause of the overload or short circuit (e.g., unplug overloaded appliances).
2. Spento completamente: Move the breaker handle firmly to the full "OFF" position. You may feel a click.
3. Reset to ON: Spingere con decisione la maniglia in posizione "ON".
4. If the breaker immediately trips again, do not attempt to reset it. There is a persistent fault that requires professional attention.

5.3 Shunt Trip Function

The shunt trip mechanism allows the circuit breaker to be tripped remotely by an external electrical signal. This is typically used in emergency shutdown systems or control applications.

• When the shunt trip coil receives the appropriate voltage signal (as specified by the manufacturer, typically 120V or 240V AC), it will mechanically trip the circuit breaker.
• After a shunt trip, the breaker must be manually reset as described in Section 5.2.
• Refer to the specific wiring diagram for your shunt trip control system for proper integration.

6. Manutenzione

The Eaton BR120ST circuit breaker is designed for minimal maintenance. However, periodic inspection is recommended.

• Ispezione visiva: Annually, with power OFF, inspect the breaker for any signs of physical damage, discoloration, loose connections, or corrosion.
• Pulizia: If necessary, gently clean the exterior of the breaker with a dry, lint-free cloth. Do not use liquids or abrasive cleaners.
• Prova: While not typically required for residential breakers, some commercial or industrial applications may require periodic operational testing by qualified personnel.

CAUTION: Do not attempt to open or repair the circuit breaker. There are no user-serviceable parts inside.

7. Risoluzione Dei Problemi

If you experience issues with your BR120ST circuit breaker, consider the following:

• L'interruttore scatta frequentemente:
  • Sovraccarico: Too many devices are connected to the circuit. Unplug some devices.
  • Corto circuito: A direct connection between hot and neutral/ground wires. This requires immediate professional inspection.
  • Guasto a terra: Current leaking to ground. This requires professional inspection.
• L'interruttore non si ripristina:
  • Assicurarsi di spingere la maniglia completamente in posizione "OFF" prima di tentare di ripristinare la posizione "ON".
  • If it still won't reset, there may be a persistent fault or internal damage to the breaker. Do not force it.
• Shunt Trip Not Functioning:
  • Verificare il volume di controllotage is present and correctly wired to the shunt trip terminals.
  • Check for loose connections in the control circuit.

If troubleshooting steps do not resolve the issue, or if you suspect a serious electrical problem, contact a qualified electrician immediately. Do not attempt repairs yourself.

8. Specifiche

9. Garanzia e supporto

Eaton products are manufactured to high standards and typically come with a manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or visit the official Eaton websito.

For technical support, service, or warranty claims, please contact Eaton customer service directly. Contact information can usually be found on the product packaging or on the Eaton official websito.

Risorse online: Per ulteriori informazioni e risorse, è possibile visitare il sito Negozio Eaton su Amazon.