STF5332-3747-61-56BC
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The STF5332-3747-61-56BC is a 22.4-pound DC motor with a Nema Frame Size of 56C and an IP65 protection rating. Manufactured by Pacific Scientific as part of their Permanent Magnet DC Motors series, it operates at a base speed of 1750 RPM and features a TENV enclosure. The motor has an armature voltage of 90 VDC and 3 brush leads.
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Product Description:
The STF5332-3747-61-56BC Motor from Pacific Scientific features a compact 13.30 inch length and it is able to handle currents up to 67 amperes. It is suitable for high demand applications in environments exposed to dust and light water exposure as it meets IP65 and NEMA MG1-1.26.5 standards.
The STF5332-3747-61-56BC motor rotor rotated at 1,750 revolutions within 60 seconds when running in a normal operating condition. It is able to deliver rotational force of 36 inch-pounds at the output shaft that is its capacity to apply rotational effort. It requires an electrical potential difference of 90 volts for standard operation which must be supplied to perform efficiently. Its 8 mH inductance suggests moderate smoothing of current flow through the coils that reduces ripple and electromagnetic noise. It is a relatively hefty unit with a weight of 41 lb that indicates robust materials and construction. Its internal components are sealed off from the external environment because of its totally enclosed non ventilated casing and it also does not include fans or openings for cooling. This module has a resistance of 0.61 ohm to electrical current flow within its windings.
This STF5332-3747-61-56BC motor has a steady state power demand of 9.2 amps of electrical current at full load to maintain torque and speed under expected working conditions. It has a moderate mass and momentum at 22.4 Ib-In rotational inertia, well suited for automation systems that need balanced responsiveness and stability features. It can work reliably in demanding thermal environments without breakdown of winding insulation or structural degradation as its materials are rated for high temperatures up to 356°F. Its NEMA frame 56 C suggests standard motor housing size and configuration that includes flange mounting and precise dimensions.
Frequently Asked Questions about STF5332-3747-61-56BC:
Q: How does its 67A peak current affect control system design?
A: Drives and fuses must be rated to handle momentary surges without tripping. This ensures smooth startup and overload protection without false shutdowns.
Q: Is STF5332-3747-61-56BC suitable for washdown areas?
A: Yes, the IP65 rating protects against dust and low-pressure water. However, it’s not designed for continuous water immersion or high-pressure cleaning.
Q: How does the 0.61-ohm resistance impact power efficiency?
A: Lower resistance reduces internal voltage drop and heat losses. This improves overall efficiency and decreases thermal stress on windings.
Q: Does the 1750 RPM rating mean it cannot be used in variable speed applications?
A: No, the motor can run at lower speeds with proper control electronics. Using PWM controllers allows flexible speed modulation while maintaining torque.
Q: How does inductance affect the STF5332-3747-61-56BC’s compatibility with drives?
A: The 8 mH inductance helps filter current spikes but may affect response speed. It works best with drives tuned for moderate dynamic applications.
