OTDC400E02K ABB 400 A 2-Pole DC Switch Disconnector

Why Choose the ABB OTDC400E02K 400 A 2-Pole DC Switch Disconnector?

The ABB OTDC400E02K, order code 1SCA132350R1001, is a high-performance 400 A 2-pole DC switch disconnector designed specifically for reliable switching and isolation in direct-current electrical systems. As part of the ABB OTDC range, it combines robust DC breaking performance with a compact design for photovoltaic, renewable-energy and industrial DC installations.

The OTDC400E02K is a front-operated switch with the operating mechanism positioned at the end of the switch. The K-version incorporates a direct-mounted operating handle, providing convenient local operation without requiring a separate external shaft. Its two-pole configuration is designed as a single DC switching circuit, while ABB's polarity-independent OTDC technology provides flexibility when arranging DC connections.

With a rated operational current of 400 A and a 2-pole configuration, the OTDC400E02K provides dependable high-current DC isolation. Its electrical design includes a 1500 V rated insulation voltage, 12 kV impulse withstand voltage and low power losses, supporting efficient operation in demanding DC power systems.

Key Advantages

• Heavy-duty 400 A DC switch disconnector for high-current applications.
• 2-pole configuration for reliable DC circuit switching and isolation.
• Purpose-designed ABB OTDC technology for direct-current applications.
• Front-operated design with operating mechanism positioned at the end of the switch.
• Direct-mounted operating handle supplied with the K-version.
• 1500 V rated insulation voltage for robust electrical performance.
• 12 kV rated impulse withstand voltage.
• Polarity-independent design provides greater installation flexibility.
• ABB Dual Magnetic Breaking technology provides dependable DC breaking performance in a compact footprint.

Key Features

• ABB OTDC DC switch-disconnector series.
• 400 A rated current.
• 2-pole switching configuration.
• Single DC switching circuit.
• Front operated with mechanism at the end of the switch.
• Direct-mounted operating handle configuration.
• 1500 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 9.7 W power loss per pole at rated operating conditions.
• Lug terminals for high-current conductor connections.
• Phase barriers included for the OTDC315–500 platform.
• Compact construction designed to reduce installation space.
• Designed for DC power and photovoltaic applications.
• IEC switch-disconnector construction.

Reliable High-Current DC Switching and Isolation

DC switch disconnectors require switching technology specifically designed to interrupt direct current safely and reliably. Unlike alternating current, DC does not naturally pass through a zero-current point during every cycle, making effective arc control particularly important. ABB OTDC switches use dedicated DC switching technology to provide reliable isolation while maintaining a compact footprint and low electrical losses.

The OTDC400E02K combines a 400 A current rating, two-pole architecture and direct-mounted operation in a compact assembly. ABB's OTDC platform is polarity independent and can be mounted in different orientations, giving panel builders and equipment manufacturers greater flexibility when designing photovoltaic, renewable-energy and industrial DC power systems.

Typical Applications

• Photovoltaic power generation systems.
• Solar inverter and combiner equipment.
• Industrial DC power distribution.
• Renewable-energy installations.
• DC control and power cabinets.
• Energy conversion equipment.
• High-current DC circuit isolation.
• OEM electrical and power-conversion equipment.