OT315TPNC ABB Enclosed Changeover Switch 315 A 3 Pole

Why Choose the ABB OT315TPNC Enclosed Changeover Switch?

The ABB OT315TPNC is a robust 315 A enclosed changeover switch designed for safe and reliable manual switching between two electrical supplies or circuits in industrial and commercial low-voltage installations. As part of ABB’s OT changeover switch range and product group 311019-Metal Enclosed (Loadbreak), it combines dependable load-breaking performance with a durable metal enclosure for demanding electrical distribution applications.

This changeover switch provides three-pole switching with a stable centre OFF position, allowing controlled transfer between two supplies using an I-O-II operating sequence. The enclosed design simplifies installation by providing the switching mechanism, operating handle and associated components within a complete assembly suitable for wall-mounted electrical installations.

With a rated current of 315 A, the OT315TPNC is suitable for substantial low-voltage loads and distribution circuits. ABB documentation for this enclosed configuration specifies an enclosure measuring approximately 800 × 600 × 335 mm, with additional depth required for the operating handle, providing a complete changeover solution for industrial power distribution and supply-selection applications.

Key Advantages

• Complete 315 A enclosed changeover switch for industrial power distribution.
• Three-pole switching for three-phase electrical systems.
• Manual I-O-II changeover operation provides a defined centre OFF position.
• Metal-enclosed construction protects the switching equipment and simplifies installation.
• Designed for reliable load-break switching in low-voltage applications.
• Suitable for mains selection, alternative supplies and generator changeover systems.

Key Features

• ABB OT enclosed changeover switch.
• 315 A rated current.
• 3-pole configuration.
• Manual I-O-II switching with stable OFF position.
• Metal enclosure for a complete installed changeover solution.
• Operating handle for straightforward supply selection.
• Supplied with bridging bars for the enclosed changeover arrangement.
• Blank gland plates provided for cable-entry preparation.

Reliable Changeover Control for Electrical Supplies

Changeover switches such as the ABB OT315TPNC provide a mechanical means of selecting between two electrical sources or circuits while maintaining a defined OFF position between switching states. This makes them well suited to installations where operators need clear and dependable control over which source is connected to a downstream load.

ABB’s OT changeover switch platform is designed for low-voltage power distribution and industrial switching applications. The enclosed OT315TPNC provides the switching device within a protective metal assembly, making it suitable for installations where a complete wall-mounted changeover solution is preferred over a separate switch installed inside a custom-built control panel.

Typical Applications

• Mains and alternative supply changeover systems.
• Generator and utility supply selection.
• Industrial low-voltage distribution systems.
• Commercial building electrical distribution.
• Plant and machinery power isolation and supply selection.
• Backup and standby power installations.