2CCF019616R0001 ABB S803PV-SP40 40 A 3-Pole 1200 V DC PV High Performance MCB 5 kA

Why Choose the ABB S803PV-SP40 High Performance MCB?

The ABB S803PV-SP40 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 and reverse currents from defective strings.

Designed for the demanding electrical conditions found in photovoltaic systems, the S803PV-SP40 combines dependable circuit protection with safe disconnection of all poles. Its polarity-independent design simplifies installation, while compatibility with ABB S800 accessories provides flexibility for control, signalling and remote switching applications.

With a rated current of 40 A, a 3-pole configuration and a rated voltage of 1200 V DC, the S803PV-SP40 provides a breaking capacity of 5 kA. It is designed in accordance with IEC 60947-2 requirements for professional photovoltaic installations where dependable high-voltage DC string protection is essential.

Key Advantages

• High-performance MCB specifically developed for photovoltaic string protection.
• 40 A rated current for PV string and DC circuit protection.
• 3-pole configuration for high-voltage photovoltaic installations.
• Rated for operation at 1200 V DC.
• 5 kA breaking capacity for dependable fault-current interruption.
• Provides protection against reverse currents from defective photovoltaic strings.
• Polarity-independent design supports flexible DC installation.
• Safe disconnection of all poles and selective string shutdown, including under load.

Key Features

• ABB S800PV-SP high-performance MCB series.
• 40 A rated current.
• 3 protected poles.
• 1200 V DC rated voltage.
• 5 kA breaking capacity.
• Dedicated design for photovoltaic string protection.
• Polarity-independent DC operation.
• Safe simultaneous disconnection of all poles.
• Suitable for operation at elevated ambient temperatures associated with PV installations.
• Compatible with ABB S800 accessories for control and signalling.
• Remote operation possible with the ABB S800-RSU remote switching unit.
• Compact DIN-rail format for integration into photovoltaic protection assemblies.

Reliable Protection for Photovoltaic DC Circuits

Photovoltaic strings can be exposed to potentially damaging reverse currents when parallel strings develop faults, as well as feedback resulting from inverter faults. The ABB S803PV-SP40 is specifically developed to protect PV modules and conductors against these conditions while providing dependable overload and short-circuit protection in high-voltage DC installations.

The ABB S800PV-SP range supports selective shutdown of individual photovoltaic strings, safe disconnection of all poles and optional remote operation. These capabilities make the S803PV-SP40 particularly suitable for commercial and industrial PV arrays, combiner boxes and other installations where reliable protection and straightforward system maintenance are required.

Typical Applications

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