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Rapid Shutdown - Discontinued

The first family of rapid shutdown devices for single-phase string inverters

A fail-safe solution for emergency responders;
NEC 2014 code compliant

NOTICE: This product is no longer available.

The ABB Rapid Shutdown system requires no extra conduit; minimizing additional material cost and associated labor.

Rapid Shutdown locationShutdown occurs at the rooftop box when utility power is lost or when the PV system’s AC disconnect switch is opened. In jurisdictions requiring a dedicated activation switch, an optional emergency stop-button is available.

The Rapid Shutdown box can mount directly to the PV mounting rail and lay parallel to the roofing surface. The NEMA 4X design permits installation angles from 0-90° while maintaining its water-tight seal from mounted snow or driven rain.

Three models are available to cover all system configurations; including, a two-string pass through, a two-string combined and a four-string combined box.

The unique features of each box can be used to maintain the specific configuration of the PV system.

Dual outputs in the box maintain the benefits of ABB’s dual MPPT inverter channels, while single output box is perfect for small PV arrays utilizing one MPPT channel.

To further reduce system cost, string combining models reduce the number of output conductors between the rooftop box and the inverter. The applicable rapid shutdown boxes include disconnect switches to comply with NEC 2014 690.15(C) Direct-Current Combiner Disconnects.

Rapid Shutdown:4-string model

This 4-string model combines 2-strings together in two separate PV output circuits.

Rapid Shutdown: 4-string model

Rapid shutdown: 2-string pass through model

This 2-string pass-through model facilitates the wire to the inverter without string combining or a local disconnect.

Rapid shutdown: 2-string pass through model

Rapid shutdown: 2-string combined model

This 2-string model combines the strings to one PV output circuit.

Rapid Shutdown: 4-string model

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