1. Introduzione
This manual provides essential information for the safe and effective installation, operation, and maintenance of the ABB OVR T2+3 20 275P SPD 1P 20KA QS Surge Protective Device. Please read this manual thoroughly before using the product.
2. Informazioni sulla sicurezza
Always adhere to local electrical codes and regulations. Installation and maintenance should only be performed by qualified personnel. Disconnect power before working on the device.
- Garantire una corretta messa a terra.
- Non utilizzare il dispositivo se appare danneggiato.
- Indossare adeguati dispositivi di protezione individuale (DPI).
- Per i collegamenti corretti, fare riferimento agli schemi elettrici.
3. Prodotto finitoview
The ABB OVR T2+3 20 275P SPD operates automatically to protect against transient overvoltages. It is a single-pole Surge Protective Device designed for robust protection of electrical installations. It features a compact design suitable for various applications.

Figura 3.1: Fronte view of the ABB OVR T2+3 20 275P SPD. This image shows the compact white housing of the surge protective device, with the ABB logo and "Surge Protective Device" label clearly visible on the front. Key specifications like "Uc 275V~" and "In 5kA" are also printed on the label.
Caratteristiche principali:
- Configurazione unipolare.
- Rated for 275V AC systems.
- Nominal discharge current (In) of 20kA.
- Quick-connect (QS) terminals for easy installation.
4. Configurazione e installazione
Before installation, ensure the main power supply is disconnected. This device is designed for DIN rail mounting.
- Mount the SPD onto a standard DIN rail within an electrical enclosure.
- Connect the phase conductor to the designated input terminal.
- Connect the neutral or ground conductor to the appropriate output terminal.
- Ensure all connections are secure and tightened to the manufacturer's specified torque.
- Verify all wiring against the system's electrical diagram.
- Restore power and check the device's status indicator.
Note: For detailed wiring diagrams, refer to the product's technical datasheet or consult a qualified electrician.
5. Istruzioni per l'uso
The ABB OVR T2+3 20 275P SPD operates automatically to protect against transient overvoltages. No user intervention is required during normal operation.
Indicatore di stato:
The device features a visual status indicator. A green indicator typically signifies normal operation, while a red indicator or absence of indication may suggest the device needs replacement or inspection.
- Verde: Device is operational and providing protection.
- Red/No Indication: Device has absorbed a significant surge and may require replacement.
6. Manutenzione
Regular inspection of the SPD is recommended to ensure continued protection. Maintenance should only be performed by qualified personnel with power disconnected.
- Periodically check the visual status indicator.
- Inspect terminals for secure connections and signs of overheating or corrosion.
- Clean the device exterior with a dry, lint-free cloth. Do not use solvents or abrasive cleaners.
- If the status indicator shows red or no indication, the device has reached its end-of-life and must be replaced.
7. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Status indicator is red or off. | Device has absorbed a significant surge and is at end-of-life. | Replace the SPD with a new unit. |
| No power to protected equipment. | Incorrect wiring or tripped circuit breaker. | Check wiring connections. Inspect and reset upstream circuit breaker. |
| Device feels warm to the touch. | Normal operation or potential overload/fault. | Slight warmth is normal. If excessively hot, disconnect power and consult a qualified electrician. |
8. Specifiche
| Parametro | Valore |
|---|---|
| Numero di modello | 2CTB803871R2400 |
| Produttore | FIGURA |
| Tipo | Dispositivo di protezione contro le sovratensioni (SPD) |
| Configurazione | 1P (Single Pole) |
| Volume NominaletagUnione Europeac) | 275 V CA |
| Nominal Discharge Current (In) | 20kA |
| Peso dell'articolo | 6.1 once |
| Dimensioni del prodotto (L x P x A) | 0.79 x 4.92 x 4.72 pollici |
| Colore | Bianco |
| Componenti inclusi | OVR T2+3 20 275P SPD 1P 20KA QS |
9. Garanzia e supporto
This ABB product comes with a Worldwide ABB Warranty. For specific warranty terms and conditions, please refer to the official ABB website or contact ABB customer support.
Per assistenza tecnica o ulteriori richieste, visitare il sito Negozio ABB su Amazon or the official ABB support channels.





