2CCS883001R0161 ABB S803C-D16 High Performance MCB 25 kA 3P Type D 16 A

Why Choose the ABB S803C-D16 High Performance MCB?

The ABB S803C-D16 is a high-performance 3-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical distribution systems. As part of the ABB S800C high-performance circuit breaker series, it combines a rated current of 16 A, D tripping characteristic and high fault-current interruption capability for commercial and industrial installations.

This current-limiting circuit breaker incorporates separate thermal and electromagnetic tripping mechanisms. The thermal release provides protection against sustained overload conditions, while the electromagnetic release responds rapidly to short-circuit faults. Fast arc extinction and current-limiting operation help reduce the thermal and mechanical stresses imposed on conductors and downstream equipment during fault conditions.

With a maximum breaking capacity of 25 kA at 240/415 V AC, three protected poles and ABB cage terminals, the S803C-D16 is particularly suitable for circuits requiring high interruption capability and a D characteristic for loads with elevated starting or inrush currents. It complies with IEC/EN 60898-1 and IEC/EN 60947-2 and is suitable for residential, commercial and industrial electrical applications.

Key Advantages

• High-performance 3-pole miniature circuit breaker for demanding circuit protection.
• 16 A rated current with D tripping characteristic.
• High 25 kA maximum breaking capacity at 240/415 V AC.
• D characteristic accommodates higher short-duration starting and inrush currents.
• Current-limiting operation helps reduce fault energy and stress on downstream equipment.
• Separate thermal and electromagnetic releases provide overload and short-circuit protection.
• Fast arc extinction supports dependable interruption of high fault currents.

Key Features

• ABB S800C high-performance circuit breaker series.
• 3-pole configuration.
• 16 A rated current.
• D tripping characteristic.
• 25 kA ultimate short-circuit breaking capacity at 240/415 V AC.
• Rated ultimate short-circuit breaking capacity of 15 kA at 254/440 V AC.
• Suitable for AC and DC applications within the manufacturer's specified ratings.
• Cage terminal connection system.
• Thermal release for overload protection and electromagnetic release for short-circuit protection.
• IP20 protection rating.

Reliable High-Performance Circuit Protection

High-performance circuit breakers such as the ABB S803C-D16 protect electrical circuits and connected equipment against excessive currents caused by overloads and short circuits. The thermal tripping mechanism responds to sustained overload conditions, while the electromagnetic mechanism provides rapid disconnection when a severe short-circuit fault occurs.

The D tripping characteristic makes the S803C-D16 particularly useful for circuits supplying equipment with relatively high starting or magnetising currents. Combined with the S800C series' high interruption capability, current-limiting operation and fast arc extinction, this makes the breaker well suited to demanding industrial distribution and machine-control applications.

Typical Applications

• Industrial electrical distribution boards.
• Three-phase machine and automation circuits.
• Industrial control panels and switchgear.
• Circuits supplying loads with elevated starting currents.
• Transformers and other equipment with significant magnetising inrush.
• Commercial and industrial power distribution systems.
• Installations with high prospective short-circuit currents.