2CCS861002R0631 ABB S801S-D63-R MCB 50 kA 1P Type D 63 A

Why Choose the ABB S801S-D63-R High Performance Circuit Breaker?

The ABB S801S-D63-R is a high-performance single-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in demanding electrical installations. As part of the ABB S800S high-performance circuit breaker series, it combines a 63 A rated current, Type D tripping characteristic and high 50 kA short-circuit breaking capacity for industrial, commercial and machinery applications.

The S801S-D63-R provides thermal protection against sustained overload conditions together with rapid electromagnetic protection against short-circuit currents. Its current-limiting construction helps interrupt severe electrical faults quickly, reducing the thermal and mechanical stresses imposed on conductors, equipment and downstream electrical components.

With its Type D characteristic, the S801S-D63-R is particularly suitable for circuits supplying equipment with high starting or inrush currents. Its substantial 63 A rating makes it a practical choice for machinery, motor, transformer and distribution circuits where tolerance of normal inrush currents and high-performance fault protection are required.

Key Advantages

• High-performance single-pole miniature circuit breaker for demanding electrical protection.
• 63 A rated current with Type D tripping characteristic.
• High 50 kA short-circuit breaking capacity.
• Type D characteristic is suitable for equipment with high starting and inrush currents.
• Thermal tripping provides dependable overload protection.
• Electromagnetic tripping enables rapid protection against short circuits.
• Current-limiting design helps reduce damaging fault energy and stresses on downstream equipment.
• Suitable for industrial machinery, motors, transformers and electrical distribution systems.

Key Features

• ABB S800S high-performance circuit breaker series.
• 1-pole configuration.
• 63 A rated current.
• Type D tripping characteristic.
• 50 kA short-circuit breaking capacity.
• Thermal overload protection.
• Electromagnetic short-circuit protection.
• High current-limiting performance for demanding installations.
• Compact modular construction for electrical distribution and control equipment.

High-Performance Circuit Protection for Demanding Installations

The ABB S800S range is engineered for electrical installations requiring high short-circuit performance and dependable circuit protection. The S801S-D63-R automatically disconnects the protected circuit during overload or short-circuit conditions, helping protect conductors, machinery and electrical equipment against potentially damaging fault currents.

Its Type D tripping characteristic provides tolerance of the high momentary currents associated with certain motors, transformers and other equipment during start-up while retaining effective protection against genuine electrical faults. Combined with the S800S platform's high breaking capacity and current-limiting performance, this makes the S801S-D63-R suitable for demanding industrial power, machine-control and equipment-protection applications.

Typical Applications

• Industrial machinery and automation systems.
• Motor circuits with high starting currents.
• Transformer and inductive-load protection.
• Electrical distribution and control panels.
• Industrial power and auxiliary circuits.
• Machine-building and OEM equipment.
• Circuits supplying equipment with high inrush currents.
• Installations requiring high short-circuit breaking capacity.