ABB OT40F3C Switch-Disconnector

ABB OT40F3C Change-Over Switch-Disconnector is a three-pole device rated for 40 A and designed to isolate or transfer power in low-voltage installations up to 690 V AC. It carries an IP20 enclosure rating, suitable for indoor use in control panels and distribution boards where a defined isolation point or power-path selection is required. As a change-over switch, it enables switching between two supply paths or safe off-load disconnection for maintenance, making it appropriate for motor feeders, auxiliary circuits, and other low-voltage power distribution tasks in industrial or commercial settings. The OT40F3C is part of ABB's OT family of switch-disconnectors, providing a compact, purpose-built solution for controlled power isolation in standard electrical installations.