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Curtis Controllers Model 1221C

The electronic motor speed controllers from Curtis Controller Model 1221C 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 Curtis Controllers Models under 1221C have a nominal voltage of 72-120 volts and a current limit of 400 amperes. It weighs 4.9 kg and is 282 mm in length, 180 mm in width, and 80 mm in depth. The Curtis Model 1221C provides a better driving experience due to key features and optional features, which can be added according to the preferences and application demands.


The Curtis 1221C controllers 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 72/120V 400A (0-5K) PMC 1221C-7401 Curtis 72/120V 400A (0-5K) PMC 1221C-7402 Curtis 72/120V 400A (0-5K) PMC 1221C-7403
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SPECIFICATIONS

NOMINAL VOLTAGE RANGE

24-80 V

CURRENT LIMIT RANGE

400 A

STANDBY CURRENT

30 mA

OPERATING FREQUENCY

15 kHz

TEMPERATURE RANGE DURING OPERATION

-25C to 75C

WEIGHT

4.9 kg

DIMENSION

  • Length

282 mm

  • Width

180 mm

  • Depth

80 mm


FEATURES

Feature

Purpose

Frequency Shifting (Only available for C model)

During low-duty cycles, it enhances control of the 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

Feature

Purpose

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