2CCS862001R0401 ABB S802S-D40 MCB 50 kA 2P Type D 40 A

Why Choose the ABB S802S-D40 MCB?

The ABB S802S-D40 is a high-performance two-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in demanding commercial and industrial installations. As part of the ABB System pro M compact S800S series, it combines a 40 A rated current, Type D tripping characteristic and high 50 kA short-circuit breaking capacity.

The S802S-D40 provides dependable thermal-magnetic circuit protection while its Type D characteristic accommodates the high starting and inrush currents associated with equipment such as motors, transformers and other inductive loads. This helps minimise unwanted tripping during normal equipment start-up while maintaining effective protection against sustained overloads and short circuits.

With its two-pole configuration, the S802S-D40 enables simultaneous switching and protection of two conductors. Its compact modular construction, high breaking capacity and robust S800S design make it well suited to industrial distribution boards, machinery, control panels and electrical systems with high prospective fault currents.

Key Advantages

• High-performance 40 A two-pole miniature circuit breaker.
• 50 kA short-circuit breaking capacity for demanding electrical installations.
• Type D tripping characteristic suited to circuits with high starting and inrush currents.
• Provides reliable overload and short-circuit protection.
• Two-pole design enables simultaneous switching and protection of two conductors.
• Suitable for motors, transformers and other inductive industrial loads.
• Compact S800S construction for efficient installation in distribution boards and control panels.

Key Features

• ABB System pro M compact S800S series.
• 40 A rated current.
• 2-pole configuration.
• Type D tripping characteristic.
• High 50 kA short-circuit breaking capacity.
• Thermal-magnetic overload and short-circuit protection.
• Designed for circuits with elevated starting currents.
• Contact-position indication for clear operating status.
• DIN-rail mounting for straightforward panel installation.
• Designed in accordance with IEC/EN 60947-2.

High-Performance Circuit Protection

The ABB S800S range is engineered for installations requiring high short-circuit performance in a compact modular circuit breaker. The S802S-D40 combines thermal overload protection with magnetic short-circuit protection, helping safeguard conductors, machinery and connected electrical equipment against damaging overcurrents.

Its Type D characteristic is particularly suitable for circuits where substantial but temporary inrush currents occur during normal operation. This makes the S802S-D40 a practical choice for motors, transformers and other equipment with high starting currents where a more tolerant instantaneous tripping characteristic is required.

Typical Applications

• Industrial motor circuits.
• Transformer and inductive-load protection.
• Industrial machinery and production equipment.
• Automation and control panels.
• Commercial and industrial distribution boards.
• Circuits with high starting or inrush currents.
• Installations requiring high short-circuit breaking capacity.