OT2500E04-135 ABB 2500 A 4-Pole 1500 V DC Switch Disconnector

Why Choose the ABB OT2500E04-135 Switch Disconnector?

The ABB OT2500E04-135, order code 1SCA160395R1001, is a heavy-duty 2500 A 4-pole switch disconnector engineered for high-current DC isolation applications at up to 1500 V DC. Part of ABB's OT -135 series, it is designed for demanding energy storage, photovoltaic, inverter and other high-power DC installations where dependable no-load isolation is required.

The OT2500E04-135 is a front-operated, base-mounted 4-pole disconnector with lug terminals and a mechanism positioned at the end of the switch on the left side. It is supplied without an operating handle and shaft, allowing the appropriate ABB operating accessories to be selected separately to suit the enclosure and installation arrangement.

In its 2500 A configuration, the OT2500E04-135 uses connection type 2 with two DC circuits and is rated DC-20B at 1500 V DC. The device has a 1500 V rated insulation voltage, 12 kV impulse withstand voltage and an 80 kA short-time withstand current for 0.3 s, providing robust electrical performance for substantial DC power systems.

Key Advantages

• Heavy-duty 2500 A 4-pole switch disconnector for high-current DC installations.
• Designed for operation at up to 1500 V DC.
• DC-20B utilisation category for connecting and disconnecting under no-load conditions.
• 80 kA short-time withstand current for 0.3 s in the 2500 A connection configuration.
• Supplied without handle and shaft, allowing operating accessories to be selected for the enclosure design.
• Suitable for demanding applications including energy storage systems, photovoltaic installations and high-power DC equipment.

Key Features

• ABB OT2500 -135 switch-disconnector series.
• 2500 A DC-20B rated operational current.
• 4-pole switching configuration.
• 1500 V DC rated operation.
• Connection type 2 for the 2500 A configuration.
• Front-operated, base-mounted construction.
• Lug terminals with terminal bolt kit included.
• Operating handle and shaft not included.

Reliable High-Current 1500 V DC Isolation

The ABB OT2500E04-135 is designed to provide a clearly defined isolation point in substantial DC power systems. Its DC-20B utilisation category is intended for connecting and disconnecting circuits under no-load conditions, making the device suitable as a maintenance, service and main isolation switch where the application is designed around this switching category.

The combination of 2500 A current capability, 1500 V DC operation, four-pole construction and an 80 kA short-time withstand rating for 0.3 s makes the OT2500E04-135 particularly suited to modern high-power DC infrastructure. Its separately selected handle and shaft also provide flexibility when integrating the switch into large electrical enclosures and switchboards.

Typical Applications

• Battery energy storage systems (BESS and ESS).
• Large-scale photovoltaic power installations.
• High-power DC inverter systems.
• Industrial DC distribution switchboards.
• Marine and transportation inverter installations.
• High-current 1500 V DC maintenance and service isolation.