2CSG452434R1202 ABB ELR96V24P Residual Current Monitor 96 mm 24–48 V

Why Choose the ABB ELR96V24P Residual Current Monitor?

The ABB ELR96V24P is an electronic Type A residual current monitor and relay designed for monitoring and protection of low-voltage electrical distribution networks. As part of the ABB ELR residual current relay series, it operates with an external toroidal transformer to detect earth leakage current and can be combined with suitable MCBs, MCCBs and tripping devices to provide effective residual current protection.

The ELR96V24P provides adjustable residual current sensitivity and intervention time, enabling earth leakage protection to be coordinated for a wide range of industrial and commercial installations. Its 60% pre-alarm threshold provides an early indication of increasing leakage current, while its front-panel format allows straightforward integration and operation within switchboards and electrical control panels.

With a 24–48 V AC/DC operating supply and 96 × 96 mm front-panel format, the ELR96V24P is particularly suitable for industrial control and automation systems using low-voltage auxiliary supplies. The relay provides Type A residual current detection and conforms to IEC/EN 60947-2 Annex M.

Key Advantages

• Electronic residual current monitoring and protection for low-voltage networks.
• Type A residual current detection for AC and pulsating DC residual currents.
• 24–48 V AC/DC operating supply suitable for industrial control systems.
• 60% pre-alarm threshold provides early indication of earth leakage conditions.
• Designed for operation with an external ABB toroidal transformer.
• Can be coordinated with MCBs and MCCBs for residual current protection.
• 96 × 96 mm front-panel format for switchboard installation.
• Compliant with IEC/EN 60947-2 Annex M.

Key Features

• ABB ELR series residual current relay.
• Type A residual current monitoring.
• 24–48 V AC/DC rated operational voltage.
• ±20% operating voltage tolerance.
• 50/60 Hz rated frequency for AC operation.
• 60% pre-alarm threshold.
• Designed for mixed-system applications.
• External toroidal transformer connection for residual current sensing.
• Front-panel configuration for convenient switchboard operation.
• 96 × 96 mm front dimensions.
• Compact installation depth for panel-mounted applications.
• Designed to work with associated circuit breakers and shunt-trip devices.

Reliable Residual Current Protection for Electrical Distribution

Residual current relays monitor electrical circuits through an external toroidal transformer surrounding the active conductors. Under normal operating conditions the currents remain balanced, while insulation faults or leakage to earth create a residual current that can be detected by the toroid and evaluated by the connected relay.

The ABB ELR96V24P can be combined with compatible toroidal transformers, MCBs, MCCBs and shunt-trip devices to create a coordinated residual current protection system. Its low-voltage AC/DC auxiliary supply makes it especially useful in industrial automation and control systems where 24–48 V control power is already available.

Typical Applications

• Low-voltage electrical distribution systems.
• Industrial switchboards and distribution panels.
• Machinery and automation control panels.
• Commercial electrical installations.
• Earth leakage monitoring and protection systems.
• Installations using 24–48 V AC/DC auxiliary control supplies.
• MCB and MCCB protection arrangements with suitable tripping devices.
• Electrical systems requiring Type A residual current monitoring.