SS451LE

The Danaher SS451LE synchronous motor, part of the Slo-Syn Synchronous Motors series by manufacturer Danaher, delivers precision timing and fixed-speed control for industrial automation systems. Equipped with a hall-effect digital position sensor, the SS451LE ensures accurate shaft positioning without speed variation under load. The motor accepts a wide supply voltage range of 3.8 Vdc to 24 Vdc, making it suitable for low-voltage DC control systems, while its single-phase design supports standard 120 Vac power in mixed installations. Designed for robust performance, the SS451LE maintains stable operation with omnipolar sensing and a fast response time for applications requiring rapid feedback. Its compact 90 mm frame and 450 oz-in torque rating provide reliable mechanical output in conveyors, indexing tables, and precision actuators.

Detailed technical specifications of the SS451LE underscore its suitability for demanding environments. The motor’s supply current is 6 mA typical, while the maximum output current from the open-collector sink output is 20 mA, enabling direct interface with logic controllers. The response time of 3 µs typical ensures minimal lag in position feedback, and the Activation (operate) Point of ±60 Gauss typical and Release (deactivate) Point of ±30 Gauss typical define precise sensing thresholds. The sensing range is fully omnipolar, detecting either north or south poles without orientation constraints. The output stage is a digital open-collector, sinking type with integrated reverse polarity protection to guard against wiring errors. For durability, the housing is molded in thermoplastic with tin-plated leads, providing chemical resistance and robust electrical contacts.

Operational performance is optimized for both laboratory and industrial settings. The motor locks to the supply frequency—50 Hz or 60 Hz—delivering shaft speeds of 60 RPM and 72 RPM respectively, and consumes 0.8 A current when driven at 120 Vac. The SS451LE’s thermal design supports an operating temperature range from -40 °C to 150 °C, accommodating harsh ambient conditions. Impedance protection within the windings ensures overcurrent safeguarding, while the standard wiring reference (PER225008) simplifies field installation. Enclosure labeling includes CE and UL Recognized (RU) markings, confirming compliance with global safety and manufacturing standards. Continuous or repetitive cycling is supported by the robust thermoplastic housing and stable low-voltage electronics.

System integration of the SS451LE prioritizes ease of deployment and precision control. The digital position sensor output interfaces directly with PLC and motion controllers, eliminating separate encoder modules. Its frame size and performance characteristics make the motor ideal for industrial instrumentation, packaging machinery, and material handling systems that demand reliable repeatability. By combining the features of the Danaher SS451LE and the proven design of the Slo-Syn Synchronous Motors series, engineers gain a compact, low-energy solution tailored for timing-sensitive applications in automated production environments.