SS451T

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The SS451T is a synchronous motor of Type A with a rated torque of 450 oz-in and operates at 72 RPM on a 60 Hz frequency. Manufactured by Danaher as part of the Slo-Syn Synchronous Motors series, it features a 120 V AC single-phase voltage rating. The motor is compatible with NEMA 23, 34, and 42 frame sizes.

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Product Description:

The SS451T Synchronous stepping motor is manufactured by Danaher and is designed to generate a consistent rotating output consistent with the frequency of the source. The motor requires a 120 V single-phase input and is capable of operating at rates of 50 Hz and 60 Hz. This motor is employed in products that require precision step control, such as industrial automation system tools.

The SS451T is a synchronous stepping motor that uses 0.8 A of electrical current and has a horsepower rating of 0.025. The connection can be seen in Diagram B. It weighs 14.3 lb and has a 34D NEMA frame size. For single-phase operation, the running power must be 450 oz-in. The maximum load inertia that the solid coupling can support is 5.5 lb-in at both 50 Hz and 60 Hz. When connected via a flex coupling, it can support loads of up to 9.1 lb-in at 50 Hz and 38 lb-in at 60 Hz. According to the electrical requirements, each wire should have a voltage of 75 V DC and a current of 0.9 A. Among the technical criteria are a minimum holding torque of 550 oz-in when only one winding is operational and 700 oz-in when both windings are operational. There is still 25 oz-in of electricity. Fifty pounds is the maximum linear force while twenty-five pounds is the maximum radial force.

The SS451T synchronous stepping motor is made of a terminal box and has a maximum size of 5.65 inches, which is 144 mm. It has a 0.50-14 NPT threaded opening size that can fit conduit or cable gland fittings. The motor can handle jobs that need controlled step-based rotation with steady loads. Industrial automation operations that require consistent handling of inertia and power make use of the motor.

Capacitor Requirement
Required for single-phase operation
Connector Dimension
5.65 in (144 mm)
Current Draw
0.8 A
Electrical Connection
Terminal box
Frame Size
90 mm
Frequency
60 Hz
Installation
Terminal box mounting
Motor Type
Synchronous, Type A
NEMA Frame Size
34D
Net Weight
14.3 lb (6.5 kg)
Operation Mode
Single-phase with phase-shifting network
Rated Torque
450 oz-in
Speed
72 RPM (60 Hz)
Voltage Rating
120 V AC, single-phase

Frequently Asked Questions about SS451T:

Q: Do SS451T motors include a terminal box setup?

A: Yes, it includes a terminal box with 0.50-14 NPT entry. This enables secure cable connection for reliable power and signal routing.

Q: Why does SS451T motor draw 0.8 A current?

A: The 0.8 A draw supports torque delivery under rated load. It ensures stable performance without overheating under standard conditions.

Q: Does SS451T motor maintain residual torque when idle?

A: Yes, it provides 25 oz-in typical residual torque. This helps prevent shaft drift when the motor is de-energized or stopped.

Q: Why does SS451T motor have two winding modes?

A: It allows operation with one or two windings energized. This gives flexible torque output options up to 700 oz-in holding torque.

Q: How does SS451T handle radial and axial forces?

A: The motor supports up to 25 lb radial and 50 lb axial forces. These ratings allow safe mechanical loading without damage.


Internal Product Review

  • ‘‘The SS451T synchronous stepping motor delivers stable speed control at 72 RPM and 60 RPM. It features 75 V DC per winding, 5.5 lb-in load inertia, and 700 oz-in holding torque. The product includes a NEMA 34D frame with a 0.8 A current draw. SS451T ensures consistent performance across 50/60 Hz frequencies.’’

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