ABB OTPN40FP Three Phase Motor Protection Relay

ABB OTPN40FP is a three-phase motor protection relay designed for reliable protection of low-voltage motors in industrial control cabinets. Rated for 40 A and configured as a three-pole device, it integrates into ABB's OTP/N family of protection products and pairs with standard motor starters to monitor overload and fault conditions across all three phases. In typical installations—such as pumps, fans, conveyors, and machine tools—the OTPN40FP helps prevent motor damage by coordinating protection against overcurrent and phase faults, enabling timely disconnection when preset limits are exceeded. The device is used within ABB's broader protection and control ecosystem, often mounted alongside contactors and overload relays in centralized protection schemes to streamline wiring and maintenance. For precise wiring diagrams, trip characteristics, and compatibility with other ABB protection modules, refer to the official ABB documentation or authorized distributors to ensure the correct integration for your specific motor and panel configuration.