SS402B

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The SS402B synchronous motor offers a minimum torque of 400 oz-in, operates with a 240 VAC single-phase voltage, has a line current of 0.6 A RMS/ph, and weighs 12.3 lbs. Part of the Slo-Syn Synchronous Motors series by Danaher, it supports an operational frequency of 60 Hz and manages a radial force capacity of 25 lbs.

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Product Description:

The SS402B Slo-Syn Synchronous Motor is designed and manufactured by Danaher. This motor is used to provide a constant speed and torque in various automated applications. The input voltage of this synchronous motor is rated at 120 VAC, and it can function on dual-frequency at 50/60 Hz, which makes this motor compatible with several power systems.

This synchronous motor is capable of handling indefinite stall conditions without overheating, which is a key feature in systems that involve frequent start-stop operations or sustained holding torque without continuous movement. The SS402B synchronous motor weighs a total of 4.76 kg, and its small frame offers a robust construction and stability. The thermal performance of this motor is also precisely managed with a maximum ambient temperature rating of 40°C and the maximum internal temperature being capped at 100°C. These temperature ranges guarantee safe operation of this motor and long life under normal industrial conditions. This motor has a continuous power output of 0.028 HP to make it suitable for low-power and high-precision applications. The SS402B synchronous motor offers a minimum running torque of 282 N·cm, which enables stable motion control under constant load conditions.

The shaft speed of this SS402B Slo-Syn Synchronous Motor is rated at 60 RPM at 50 Hz, and it goes up to 72 RPM when powered with 60 Hz to provide precise synchronization with system requirements without using any external feedback mechanisms. The maximum load inertia capacity of this synchronous motor is 13.2 kg·cm² for rigid loads, and it extends up to 96 kg·cm² for flexible load arrangements, thus making it easy to integrate with both light and high-inertia components. This adaptability also allows this motor to be utilized in configurations where load fluctuation occurs.

Current
0.4 A
Frequency
50/60 Hz
Horsepower
0.028 HP
Max Ambient Temp.
40°C
Max Motor Temp.
100°C
Max. Load Inertia
13.2 kg·cm² Rigid, 96 kg·cm² Flex
Min. Running Torque
282 N·cm
Phase
Single-phase
Shaft Speed
60 RPM @ 50 Hz, 72 RPM @ 60 Hz
Stall Capability
Indefinite without overheating
Voltage
120 VAC
Weight
4.76 kg

Frequently Asked Questions about SS402B:

Q: How does the 0.4 A current rating benefit system design?

A: It allows integration into low-power circuits without overloading power supplies. This supports energy-efficient setups for continuous operation.

Q: Why is dual-frequency support important for the SS402B?

A: It allows operation in both 50 Hz and 60 Hz regions. This provides flexibility for international equipment compatibility.

Q: How does the SS402B handle high inertia loads effectively?

A: With a max flexible inertia of 96 kg·cm², it supports systems with pulleys or belts. This ensures smooth startup without torque overshoot.

Q: What makes the stall capability of SS402B unique?

A: It can remain stalled indefinitely without overheating. This feature protects the motor during load resistance or motion halts.

Q: Why is a constant speed of 72 RPM at 60 Hz useful?

A: It enables precise synchronization for timing-sensitive operations. Consistent output speed helps reduce the need for closed-loop control systems.


Internal Product Review

  • ‘‘The SS402B motor offers 0.028 HP output and maintains 72 RPM at 60 Hz. Its ability to handle 96 kg·cm² flex load inertia makes it valuable for automation. With 282 N·cm torque, this unit ensures dependable performance in motion-critical applications where consistency and control are vital.’’

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