2CCF019619R0001 ABB S803PV-SP80 80 A 3-Pole PV String High Performance MCB 5 kA

Why Choose the ABB S803PV-SP80 High Performance MCB?

The ABB S803PV-SP80 is a high-performance 3-pole miniature circuit breaker (MCB) specifically developed for photovoltaic string protection in high-voltage DC solar installations. As part of the ABB S800PV-SP high-performance circuit breaker range, it provides reliable protection for PV modules and conductors against overloads, short circuits, reverse currents from defective strings and regenerative feedback caused by inverter faults.

Designed for the demanding electrical conditions found in photovoltaic systems, the S803PV-SP80 provides safe disconnection of all poles and supports selective shutdown of individual PV strings even under load. Its polarity-independent design simplifies installation, while compatibility with the extensive ABB S800 accessory range enables flexible integration into professional solar protection systems.

With a rated current of 80 A, a 3-pole configuration and a breaking capacity of 5 kA, the S803PV-SP80 is engineered for high-performance photovoltaic DC circuit protection. Its interchangeable cage terminals and compact modular construction make it well suited to PV combiner boxes, distribution panels and commercial or industrial solar installations.

Key Advantages

• High-performance MCB specifically developed for photovoltaic string protection.
• 80 A rated current for higher-current PV string and DC protection applications.
• 3-pole configuration for photovoltaic DC circuits.
• 5 kA breaking capacity in accordance with IEC 60947-2.
• Protects PV modules and conductors against reverse currents from defective strings.
• Provides protection against regenerative feedback resulting from defective inverters.
• Polarity-independent design supports flexible installation.
• Selective string shutdown is possible even under load.

Key Features

• ABB S800PV-SP high-performance MCB series.
• 80 A rated current.
• 3 protected poles.
• 5 kA rated ultimate short-circuit breaking capacity.
• Dedicated photovoltaic string protection design.
• Safe simultaneous disconnection of all poles.
• Polarity-independent DC operation.
• Interchangeable cage terminal system.
• Designed for operation in the high ambient temperatures associated with PV installations.
• Compatible with ABB S800 accessories for signalling and control.
• Remote shutdown can be implemented using suitable working-current and undervoltage releases.
• Fast remote-controlled operation is possible with the ABB S800-RSU remote switching unit.

Reliable Protection for Photovoltaic DC Circuits

Photovoltaic arrays can generate damaging reverse currents when faults occur in parallel-connected strings, while inverter faults can introduce regenerative feedback into the DC system. The ABB S803PV-SP80 is specifically engineered to protect photovoltaic modules and conductors against these conditions while allowing affected strings to be selectively disconnected.

The ABB S800PV-SP range combines high-performance DC circuit protection with safe all-pole disconnection, polarity-independent operation and extensive accessory compatibility. These characteristics make the S803PV-SP80 suitable for demanding commercial and industrial photovoltaic installations where dependable protection, isolation and straightforward maintenance are essential.

Typical Applications

• Photovoltaic string protection.
• Solar PV combiner boxes.
• PV module and array protection systems.
• High-current photovoltaic DC circuits.
• Commercial solar installations.
• Industrial photovoltaic installations.
• Renewable energy distribution and protection panels.