KH, KN Geared Induction Motor

Product catalog summary

Induction Motor Family Overview
The document details the specifications for the KH and KN series geared induction motors, which are designed as direct replacements for similar motor types. These motors feature NEMA 2-11 mounting, permanent lubrication, and are reversible with a capacitor provided for 115V, 60Hz models. The motors are designed for continuous duty and employ a 'Heli-Spur' gearing combination for quiet and efficient operation.

KH Series Specifications
The KH series motors are characterized by high slip, high starting torque, rapid reversal, and dynamic braking capabilities. They are suitable for applications requiring these features.

KN Series Specifications
The KN series motors offer greater output torque compared to synchronous motors and maintain relatively uniform speed, although they do not have synchronous timing characteristics.

General Specifications

Mounting: NEMA 2-11 Standard
Output Speed: 0.8 to 1550 RPM
Insulation Class: Class A (105°C)
Lead Wire: 3 leads 22AWG, approximately 12 inches (304.8 mm)
Operating Ambient Temperature: -10°C to +40°C
Gearing: Heli-Spur with permanent lubrication
Capacitor: Required for operation, supplied with 115 Vac 60 Hz motors

Model Specifications
The document includes a detailed table listing various models with specifications such as part number, reduction, rated torque (oz-in and mN-m), output speed (RPM), maximum gear train loading, input power (watts), voltage (VAC), full load temperature rise (°C), capacitor value (mfd), case length (in and mm), and weight (oz and g).

Key Data from Table
For example, the KH 2423-003 model has a reduction of 1800, rated torque of 250 oz-in (1765.4 mN-m), output speed of 0.8 RPM, and operates at 115 VAC with a full load temperature rise of 29°C. It requires a capacitor value of 0.85 mfd and has a case length of 2.53 inches (64.3 mm) with a weight of 34 oz (963.9 g).

Catalog excerpts

INDUCTION MOTOR FAMILY Series KH, KN Geared Induction Motor Mounting: KH Series: KN Series: NEMA 2-11 Standard High Slip - high starting torque, rapid reversal and/or dynamic braking required Normal Slip - greater output torque, maintain relatively uniform speed but do not have synchronous timing characteristics .8 to 1550 RPM Class A (105°C) 3 leads 22AWG (approx. 12 inches [304.8 mm]) Output Speed: Insulation Class: Lead Wire: Operation Ambient -10°C to +40°C (approx.) Temp: Gearing: Heli-Spur, permanent lubrication Capacitor is required for operation. Capacitor supplied with 115 Vac 60 Hz motors. Note: Typical data subject to change without notification KH Series (high slip) and KN (normal slip) non-synchronous motors are direct replacements for other motors of this type. Both provide NEMA 2-11 mounting, permanent lubrication, and are reversible (capacitor furnished with 115V, 60Hz models). Geared models have a "Heli-Spur" combination with the primary gear stage helical and the subsequent stages spur. This gearing design provides for quiet, efficient operations. All motors are designed for continuous duty. KH Series motors are usually employed where high starting torque, rapid reversal and/or dynamic braking is required. KN Series motors have much greater output torque than synchronous motors, maintain relatively uniform speed but do not have synchronous timing characteristics. Notes: • A capacitor is required for operation. Hurst 1551 East Broadway Street Princeton, IN 47670 MOTOR SPECIFICATION SHEET

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Part Number Rated Rated Output Torque Torque Speed (mN-m) (oz-in) (RPM) 250 Maximum gear train loading Input Power (watts) Full Capacitor Load Capacitor not Temp. Value (mfd) supplied Rise °C 29 Case Weight Length Weight (g) (oz) (mm) Hurst 1551 East Broadway Street Princeton, IN 47670 MOTOR SPECIFICATION SHEET

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