2CCS881001R0501 ABB S801C-D50 1-Pole Type D 50A 25kA High Performance MCB

Why Choose the ABB S801C-D50 High Performance MCB?

The ABB S801C-D50 is a compact 1-pole high performance miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit conditions. Part of the ABB S800 high performance circuit breaker range, it combines a 50 A rated current, Type D tripping characteristic and high short-circuit breaking capacity for demanding industrial and commercial electrical installations.

The S801C-D50 uses thermal and electromagnetic tripping mechanisms to provide dependable overcurrent protection. Its Type D characteristic accommodates comparatively high short-duration inrush currents, making it particularly suitable for circuits supplying motors, transformers and other equipment that can draw substantial current during energisation or start-up.

With a 25 kA short-circuit breaking capacity and single-pole configuration, the S801C-D50 provides robust protection where high prospective fault currents may occur. Its compact DIN-rail format enables straightforward integration into industrial control panels, distribution boards, machinery and switchgear assemblies.

Key Advantages

• High-performance 1-pole miniature circuit breaker for demanding electrical installations.
• 50 A rated current for branch and equipment circuit protection.
• Type D tripping characteristic suited to loads with high starting or inrush currents.
• High 25 kA short-circuit breaking capacity.
• Thermal protection against sustained overload conditions.
• Electromagnetic protection provides rapid interruption during short circuits.
• Compact DIN-rail format simplifies installation in control and distribution equipment.

Key Features

• ABB S800 high performance circuit breaker range.
• 1 protected pole.
• 50 A rated current.
• Type D tripping characteristic.
• 25 kA breaking capacity.
• Combined thermal and electromagnetic overcurrent protection.
• Suitable for circuits with elevated switch-on and starting currents.
• DIN-rail mounting for convenient panel installation.
• Designed for demanding industrial and commercial circuit protection.

Reliable Protection for High-Inrush Loads

Miniature circuit breakers such as the ABB S801C-D50 automatically disconnect a circuit when excessive current occurs. The thermal trip responds to sustained overload conditions, while the electromagnetic trip provides rapid interruption during short circuits, helping protect conductors, connected equipment and electrical installations from damage.

The Type D characteristic is particularly useful where equipment produces substantial but legitimate current peaks during energisation or start-up. Combined with the S801C-D50's high fault interruption capability, this makes the breaker well suited to industrial circuits supplying motors, transformers and other high-inrush equipment.

Typical Applications

• Industrial electrical distribution boards.
• Motor and machinery supply circuits.
• Transformer supply circuits.
• Circuits with high switch-on or starting currents.
• Industrial control panels and switchgear.
• Manufacturing and production equipment.