E31NRHT-LDN-NS-00

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The E31NRHT-LDN-NS-00 stepper motor features a NEMA 34 frame size, modular encoder mounting, a thermal resistance ranging from 3.9 °C/W to 1.48, and motor leads with a minimum length of 12 inches. Part of the E Hybrid Stepper Motors series by Kollmorgen, it offers heavy-duty configurations with a 1/2 NPSC tap conduit connection option.

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Product Description:

The top model E31NRHT-LDN-NS-00 from the famous E Hybrid Stepper Motors series is designed by Kollmorgen. This servo module is provided with a NEMA 34 FRAME which guarantees heavy duty mechanical support. There is also a provision for heavy-duty NEMA front-end bell which adds more to the structural strength of the unit. Moreover, the leads of the motor are no less than 12 inches (304,8 mm) long, with lead AWG depending on the motor, which gives flexibility when it comes to installation.

It has a low side of the chassis design that expels wires through the conduit using a 1/2 NPSC TAP with a removable insulating bushing which assists in wiring maintenance. It also has a medium side PG 13.5 TAP that does not have an insulating bushing and allows for fluid or signal passage. Splashproof protection is not provided in standard front shaft configuration which makes it good for application with low exposure. Positioning is assisted with the L1 maximum for 33nc model set at 6.05 in (153.7 mm) and for 34hc model at 7.62 in (193.5 mm). An encoder mounting is provided through modular construction for easier upgrades and diagnostics. The Ø B.c. dimensional range is typical, from Ø1.437 to Ø3.875 in, allowing for easy coupling.

The thermal resistance values of E31NRHT-LDN-NS-00 range from 3.9°C/W to 1.48°C/W enables effective heat dissipation while under load. The phase-locked loop includes certain managed parameters, like DC Amps, which are limited to 0.50 for parallel or unipolar resistance output. This spec is an effective means of current management. Moreover, other series communication models of this type have a detachable connector (H3 Enh.) for improved networking.

Bolt Circle Diameter
Ø1.437–Ø3.875 in
Conduit Connection L
1/2 NPSC tap, removable ins. bushing
Conduit Connection M
PG 13.5 tap, no insulating bushing
Encoder Mounting
Modular supported option
Frame Size
NEMA 34
Front End Bell
Heavy Duty NEMA option
L1 Max (Model 33NC)
6.05 in (153.7 mm)
L1 Max (Model 34HC)
7.62 in (193.5 mm)
Lead AWG
Varies by motor
Motor Lead Length
Min. 12.0 in (304.8 mm)
Thermal Resistance
1.48–3.9 °C/W

Frequently Asked Questions about E31NRHT-LDN-NS-00:

Q: What advantages does the NEMA 34 FRAME provide for E31NRHT-LDN-NS-00?

A: The NEMA 34 FRAME offers a sturdy and reliable mechanical structure. It ensures that the motor withstands the stresses of industrial environments.

Q: How does the heavy duty NEMA front end bell improve the E31NRHT-LDN-NS-00 motor?

A: The heavy-duty front-end bell adds extra reinforcement for heavy-duty applications. It helps maintain structural integrity under constant operational stress.

Q: Why are motor leads important in the E31NRHT-LDN-NS-00 structure?

A: The longer motor leads with a minimum length of 12.0 inches allow for greater installation flexibility and easier maintenance. It ensures that this stepper motor can be connected without tension or interference.

Q: What role does the conduit connection with a 1/2 NPSC TAP play?

A: This conduit connection, equipped with a removable insulating bushing, simplifies the wiring process. Th hybrid motor E31NRHT-LDN-NS-00 ensures a secure, service-friendly installation on the low side.

Q: How do the L1 Maximum values for model 33nc and 34hc differ?

A: For the model 33nc, the L1 Maximum is 6.05 in. (153.7 mm), while for model 34hc it is 7.62 in. (193.5 mm). These variations allow you to select the right E31NRHT-LDN-NS-00 configuration based on your application's dimensional requirements.


Internal Product Review

  • ‘‘The part E31NRHT-LDN-NS-00 is an advanced E Hybrid stepper motor available with a heavy duty NEMA front end bell that enhances its durability for rigorous use. This configuration eases system integration and streamlines maintenance, making it a smart choice for demanding automation tasks.’’

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