Why Choose the ABB S204D63 Miniature Circuit Breaker?
The ABB S204D63, also identified as S204-D63, is a premium four-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits. As part of the trusted ABB System pro M compact S200 series, it is suitable for demanding residential, commercial and industrial electrical installations.
The breaker combines a delayed thermal tripping mechanism for overload protection with an electromechanical tripping mechanism for rapid short-circuit interruption. Its D-curve tripping characteristic is specifically intended for circuits with high inrush currents, including motors, transformers, compressors, pumps, welding equipment and other inductive loads.
With a rated current of 63 A, a four-pole configuration and a rated short-circuit capacity of 6 kA at 230/400 V AC, the S204D63 delivers reliable protection for three-phase installations requiring simultaneous switching of all four conductors. Its compact modular construction allows quick installation on a standard 35 mm DIN rail within distribution boards and industrial control panels.
Key Advantages
- Reliable overload and short-circuit protection for four-pole electrical circuits.
- 63 A rated current for demanding commercial and industrial applications.
- D-curve tripping characteristic for high inrush current equipment.
- 6 kA rated short-circuit breaking capacity.
- Current-limiting construction helps reduce fault energy.
- Compact DIN rail mounting for straightforward installation.
Key Features
- ABB System pro M compact S200 series.
- Four-pole miniature circuit breaker.
- 63 A rated current.
- D tripping characteristic.
- 6 kA rated short-circuit capacity (Icn).
- Thermal overload and magnetic short-circuit protection.
- Current-limiting design for improved electrical safety.
- Bottom-mounted ABB auxiliary contact compatibility.
- Suitable for residential, commercial and industrial applications.
- 35 mm DIN rail mounting.
Reliable Protection for High Inrush Current Applications
The ABB S204D63 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, protecting cables, connected equipment and personnel. Its current-limiting construction helps minimise fault energy and contributes to improved installation safety.
Its D-curve characteristic makes it particularly suitable for motors, transformers, compressors, welding equipment and other inductive loads where high temporary starting currents are expected without causing nuisance tripping.
Typical Applications
- Three-phase industrial distribution boards.
- Motor control circuits.
- Transformers and inductive loads.
- Compressors and pumps.
- Industrial machinery and manufacturing equipment.
- OEM control panels and automation systems.
