1. Introduzione
This manual provides essential information for the safe and effective use of the ABB S202-K16 Miniature Circuit Breaker. Please read these instructions carefully before installation, operation, or maintenance to ensure proper functioning and to prevent potential hazards.
2. Informazioni sulla sicurezza
AVVERTIMENTO: Electrical shock hazard. Only qualified personnel should install, operate, or service this device. Failure to follow these instructions can result in serious injury or death.
- Always disconnect power before working on electrical equipment.
- Assicurarsi che durante l'installazione vengano rispettate tutte le normative elettriche locali e nazionali.
- Non utilizzare il dispositivo se appare danneggiato.
- Verifica corretto voltage and current ratings before connecting.
3. Prodotto finitoview
The ABB S202-K16 is a 2-pole miniature circuit breaker designed for low voltage applications. It provides thermal/magnetic protection against overcurrent faults in commercial appliances, control circuits, computer equipment, and other peripheral devices. This K-Curve breaker is rated for 16 Amps at 480Y/277V with a 6 kAIC interrupt rating, compliant with UL 1077 standards.

4. Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Numero di modello | S202-K16 |
| Marca | FIGURA |
| Voltage Valutazione | 480Y/277 V CA |
| Ampvoto d'ira | 16 A |
| Frequenza nominale | Frequenza 50/60 Hz |
| Interrupt Rating (UL 1077) | 6kAIC |
| Interrupt Rating (IEC60947-2) | 10 kA (as per OCR on product image) |
| Tipo di viaggio | Thermal/Magnetic (K-Curve) |
| Intervallo di viaggio | 8 - 12 A magnetico e 1.05 - 1.2 A termico |
| Numero di poli | 2 |
| Tipo di attuatore | Attiva/disattiva |
| Dimensioni del filo | Conduttore 18 - 4 AWG, barra collettrice 18 - 8 AWG |
| Tipo di terminale | Vite |
| Tipo di contenitore | Grado di protezione IP20 |
| Tipo di montaggio | DIN-Rail |
| Valutazione della temperatura | -25 A 55 grado C |
| Dimensioni (A x L x P) | Dimensioni: 88 mm x 35 mm x 69 mm |
| Standard/Approvazioni | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 |
5. Installazione (configurazione)
The ABB S202-K16 is designed for DIN-rail mounting. Follow these general steps for installation:
- Disconnessione dell'alimentazione: Ensure all power to the installation area is completely disconnected and locked out before beginning any work.
- Montaggio: Clip the circuit breaker onto a standard 35mm DIN rail. Ensure it is securely seated.
- Cablaggio: Connect the incoming and outgoing electrical conductors to the appropriate screw terminals. The wire size should be within the specified range of 18 - 4 AWG for conductors or 18 - 8 AWG for busbars. Tighten terminal screws to the manufacturer's recommended torque specifications to ensure a secure connection and prevent overheating.
- Verifica: Double-check all connections for correctness and tightness.
- Ripristino dell'energia: Una volta completata e verificata l'installazione, ripristinare l'alimentazione al circuito.
Refer to local electrical codes and standards for specific wiring practices.
6. Funzionamento
The ABB S202-K16 circuit breaker features a toggle actuator for manual operation and visual status indication.
- Posizione ON: To energize the circuit, push the toggle switch upwards to the 'ON' position.
- Posizione OFF: Per disattivare il circuito, spingere l'interruttore a levetta verso il basso, in posizione "OFF".
- Posizione di scatto: In the event of an overcurrent or short circuit, the breaker will automatically trip, moving the toggle switch to an intermediate or 'TRIPPED' position (often between ON and OFF).
- Ripristino di un interruttore scattato: If the breaker trips, first identify and rectify the cause of the fault. Then, fully push the toggle switch to the 'OFF' position before attempting to reset it to the 'ON' position. If the breaker immediately trips again, do not force it; investigate further for persistent faults.
7. Manutenzione
The ABB S202-K16 circuit breaker is generally maintenance-free. However, periodic checks are recommended to ensure optimal performance and safety.
- Ispezione visiva: Ispezionare periodicamente l'interruttore automatico per verificare la presenza di eventuali segni di danni fisici, scolorimento o collegamenti allentati.
- Pulizia: If necessary, gently clean the exterior of the breaker with a dry, lint-free cloth. Do not use solvents or abrasive cleaners. Ensure power is disconnected before cleaning.
- Verifiche della connessione: With power disconnected, periodically check the tightness of terminal screws to prevent loose connections, which can lead to overheating.
- Sostituzione: If the circuit breaker shows signs of damage, frequent tripping without an identifiable fault, or fails to operate correctly, it should be replaced by a qualified electrician.
8. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| L'interruttore scatta spesso | Overload, short circuit, ground fault, or faulty appliance/wiring. | Disconnect appliances from the circuit. Reset the breaker. If it trips again, consult a qualified electrician to inspect the wiring and connected loads. |
| L'interruttore non si ripristina | Guasto persistente (sovraccarico/cortocircuito) o danno interno all'interruttore. | Ensure the toggle is fully pushed to 'OFF' before attempting to reset to 'ON'. If it still doesn't reset, there is likely a continuous fault or the breaker is damaged and needs replacement. |
| L'interruttore è caldo | Loose connections, sustained overload, or internal fault. | Immediately disconnect power. Check terminal connections for tightness. Reduce load on the circuit. If the issue persists, replace the breaker or consult an electrician. |
Always ensure power is disconnected before inspecting or working on the circuit. If you are unsure about any troubleshooting step, contact a qualified electrician.
9. Garanzia e supporto
Specific warranty terms for the ABB S202-K16 Miniature Circuit Breaker are typically provided at the point of purchase or can be found on the official ABB website. For technical support, service, or warranty claims, please contact ABB customer service or your authorized ABB distributor.
Puoi trovare maggiori informazioni e dettagli di contatto sul sito ufficiale ABB websito: www.abb.com





