SS700EG9 Danaher
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The Danaher SS700EG9 is part of the Slo-Syn Synchronous Motors series and features a minimum running torque of 700 oz-in with a motor speed of 72 rpm. It has a rated voltage of 120 Vac, rated frequency of 60 Hz, and a line current of 1.1 A. The motor uses a terminal board connection style and includes a rear shaft extension.
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Product Description:
The SS700EG9 synchronous step motor is manufactured by Danaher and belongs to the Slo-Syn Synchronous Motors series. It operates as a constant-speed AC drive, locking its rotor to the supply frequency so that industrial equipment such as positioning tables, feeders, and small conveyors advances by a fixed angular increment during each cycle. This open-loop characteristic supports repeatable indexing without feedback devices, making the motor suitable for moderately loaded automation axes that require dependable timing rather than dynamic speed variation.
The stator is energized at 120 Vac, and the rotor synchronizes with a supply frequency of 60 Hz, establishing a steady output speed of 72 rpm. During rated operation, the winding draws 1.1 A, which must be considered when sizing branch protection and cabinet ventilation. The frame delivers a minimum running torque of 700 oz-in, allowing direct coupling to lead screws or pulleys that demand substantial force at low speed. A run capacitor with a capacitance of 12.5 µF is connected in series with one phase. This component shifts the current by ninety electrical degrees, balances the magnetic fields, and smooths torque pulsations throughout each revolution.
Power and phase leads terminate on a terminal board, simplifying wiring because the connections require only ring lugs and screws. The companion capacitor must be rated for 330 Vac to withstand the repetitive peak voltages present on the start winding. When rapid deceleration or an overhauling load is expected, a dynamic brake resistor of 150 ohms is fitted to convert kinetic energy into heat. Resistor dissipation can reach 100 W, so the installation must provide adequate airflow around the braking component. A rear shaft extension accommodates an encoder or handwheel without interfering with the primary driven connection. Wiring diagram C identifies the lead colors needed to obtain the correct direction of rotation.
