2CCS802901R0539 ABB S802S-SCL32-SR Self-Resetting Short-Circuit Limiter 2P 32 A

Why Choose the ABB S802S-SCL32-SR Self-Resetting Short-Circuit Limiter?

The ABB S802S-SCL32-SR is a two-pole, 32 A self-resetting short-circuit current limiter designed to increase the short-circuit capability of downstream ABB high-performance circuit breakers and compatible motor protection devices. Part of the ABB S800-SCL-SR range, it is particularly suited to industrial distribution systems where high prospective fault currents and continuity of supply must be managed effectively.

The S802S-SCL32-SR has a 32 A rated continuous current and a 50 kA conditional rated short-circuit current. ABB's S800-SCL-SR technology limits the short-circuit current during a downstream fault, enabling compatible protective devices to interrupt the affected branch while reducing the electrical stress imposed on the installation.

A key advantage is its automatic self-resetting operation. After the downstream protective device clears the fault, the limiter contacts automatically re-close, allowing unaffected parallel circuits to remain operational. This makes the S802S-SCL32-SR particularly valuable for group protection and installations where system availability is important.

Key Advantages

• Self-resetting short-circuit current limiter for professional electrical distribution systems.
• 32 A rated continuous current.
• Two-pole configuration for compatible two-pole circuit arrangements.
• 50 kA conditional rated short-circuit current.
• Limits high prospective short-circuit currents before they reach downstream protective devices.
• Automatically re-closes after the downstream device clears the fault.
• Supports selectivity and back-up protection in one coordinated system.
• Allows unaffected parallel branches to continue operating during a fault on another branch.

Key Features

• ABB S800-SCL-SR self-resetting short-circuit limiter range.
• 32 A rated continuous current.
• Two-pole IEC version.
• 50 kA conditional rated short-circuit current.
• Self-resetting contact system after downstream fault clearance.
• Designed for continuous group protection.
• Suitable for coordination with compatible ABB S800S high-performance MCBs.
• Can also be combined with compatible ABB manual motor starters.
• S800-SCL-SR range supports systems up to 690 V AC.
• DIN-rail mounting for straightforward switchboard integration.

Self-Resetting Short-Circuit Limitation for Maximum System Availability

In electrical installations with high prospective short-circuit currents, downstream protective devices can require additional back-up protection to operate safely within their rated breaking capabilities. The ABB S802S-SCL32-SR limits the fault current reaching compatible downstream circuit breakers or motor protection devices, helping increase the short-circuit capability of the coordinated protection system.

Unlike a conventional protective device that remains open after operation, the S800-SCL-SR automatically re-closes its limiter contacts after the downstream device has interrupted the faulty circuit. Only the affected branch is disconnected while other parallel circuits can remain energised, making this technology particularly effective for group protection and applications where continuity of service is a priority.

Typical Applications

• Group protection of multiple downstream electrical circuits.
• Back-up protection for compatible ABB S800S high-performance MCBs.
• Protection of compatible manual motor starter installations.
• Industrial motor control and distribution systems.
• Electrical installations with high prospective short-circuit currents.
• Industrial switchgear and distribution panels.
• Applications requiring improved selectivity and continuity of supply.