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Curtis Controllers Model 1231

The electronic motor speed controllers from Curtis Controller Model 1231 operate at a high frequency of 15 kHz and 1.5 kHz, making these controllers a noiseless and cost-efficient choice as they permit smooth control of brake, torque, and speed. It is designed to suit various industrial applications such as vehicles used for material handling and on-road cars.


The controllers under Curtis 1231 have nominal voltage options of 72-120 volts and 96-144 volts and a current limit ranging from 500-550 amperes, which offers high power among similar controllers. It has a length of 309 mm, a width of 220 mm, and a depth of 94 mm. It also has a frequency shifting feature, which is also only available for the Curtis 1221 model.


The Curtis Model 1231 provides a better driving experience due to its features. The controller can now be purchased here in Cloud Electric, your one-stop shop for all your electric component needs. Cloud Electric is a leading distributor of electronic components in North America. We take pride in our informative product descriptions, pricing, and shipping speed.

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Curtis 96/156V 500A PMC 1231-0009 Curtis 72/120V 550A (0-5V) PMC 1231-7701 Curtis 72/120V 550A (0-5K) PMC 1231-7702
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Curtis 72/120V 550A (6-11V) PMC 1231-7703 Curtis 96/144V 500A (0-5K) PMC 1231-8601 Curtis 96/144V 500A (0-5V) PMC 1231-8602
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SPECIFICATIONS

NOMINAL VOLTAGE RANGE

72-120 V, 96-144 V

CURRENT LIMIT RANGE

500-550 A

STANDBY CURRENT

30 mA

OPERATING FREQUENCY

15 kHz and 1.5 kHz

TEMPERATURE RANGE DURING OPERATION

-25C to 85C



PHYSICAL SPECIFICATIONS

PACKAGING

IP65

WEIGHT

8.6 kg

DIMENSION

  • Length

309 mm

  • Width

220 mm

  • Depth

94 mm



FEATURES

Feature

Purpose

Frequency Shifting (Only available for C model)

During low-duty cycles, it enhances control of a current limit

Brake Control and Variable Drive Speed

Allows accurate vehicle control for an improved driving experience

Power MOSFET

Highly efficient and noiseless operation

Protection and Compensation Circuit for Temperature

Allows stable current limit and cutback function for during under and over temperature condition

Cutback Function (Undervoltage)

Provides protection from low battery voltage (internal and/or external)

Circuitry for Fault Detection

Helps in preventing runaway conditions and monitors components such as the battery, and a bypass contactor, among others

Easy Installation

No further alterations

Tin-plating (Bus Bars)

Protection for solid copper bus bars

Push-in Connectors

Allows control wiring



OPTIONAL FEATURES

  • High Pedal Disable: Allows a safe start by monitoring the status of the throttle. If the vehicle is started with an applied throttle, this feature disables it from operating until the throttle is returned to a neutral position



DIMENSIONS



WIRING DIAGRAM