2CCS803917R0639 ABB S803W-SCL100-SR MCB 50kA 3P 100A Short-Circuit Limiting

Why Choose the ABB S803W-SCL100-SR MCB?

The ABB S803W-SCL100-SR is a high-performance three-pole miniature circuit breaker (MCB) designed for demanding industrial and commercial electrical distribution applications. Part of the ABB S800 high-performance circuit breaker range, it combines a substantial 100 A rated current with high short-circuit capability for circuits where robust fault protection is required.

This model is specified as an SC Lim. short-circuit limiting circuit breaker. Its current-limiting action is designed to interrupt severe short-circuit currents rapidly, restricting the peak current and fault energy passed through the protected circuit and helping reduce thermal and electrodynamic stresses on conductors and connected equipment.

With a high 50 kA short-circuit breaking capacity and a 3-pole configuration, the S803W-SCL100-SR provides coordinated protection and switching for three-phase electrical circuits. ABB order code 2CCS803917R0639 uniquely identifies this 100 A short-circuit limiting model.

Key Advantages

• High-performance ABB S800 miniature circuit breaker.
• 100 A rated current for high-current distribution circuits.
• High 50 kA short-circuit breaking capacity.
• Short-circuit limiting design helps reduce peak fault current and let-through energy.
• Three-pole configuration for coordinated protection and switching of three-phase circuits.
• Provides dependable overload and short-circuit protection.
• Suitable for installations with high prospective short-circuit currents.
• Part of ABB's established S800 high-performance circuit protection platform.

Key Features

• ABB S800 high-performance MCB family.
• 3-pole circuit breaker.
• 100 A rated current.
• 50 kA short-circuit breaking capacity.
• SC Lim. short-circuit limiting configuration.
• Automatic overload and short-circuit protection.
• Designed for rapid interruption of high fault currents.
• Current-limiting action helps reduce fault stresses within the electrical system.
• Suitable for demanding industrial and commercial power distribution.
• Provides multipole circuit protection, switching and isolation functionality.

Reliable Short-Circuit Current-Limiting Protection

A severe short circuit can produce extremely high current within a very short period, exposing cables, busbars and connected equipment to substantial thermal and electrodynamic stresses. A short-circuit limiting breaker acts rapidly during a fault to restrict the peak current and energy allowed to pass through the protected circuit.

The ABB S803W-SCL100-SR combines short-circuit limiting performance with a 100 A current rating, 50 kA breaking capacity and three-pole construction. This makes it suitable for demanding three-phase electrical systems where high prospective fault levels require robust interruption and effective limitation of short-circuit stresses.

Typical Applications

• Industrial three-phase electrical distribution systems.
• Commercial power distribution installations.
• Industrial control panels and switchboards.
• Machine and production-equipment supply circuits.
• High-fault-level electrical installations.
• Three-phase circuits requiring 100 A protection.
• Applications requiring short-circuit current limitation.