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Curtis Controllers Model 1221


The electronic motor speed controllers from Curtis Controller Model 1221 operate at high frequency, making them a noiseless and cost-efficient choice as they allow smooth control of brake, torque, and speed. It is designed to suit various industrial applications, ranging from vehicles used for material transport to boom trucks utilized mostly in heavy-duty services.


The Curtis Controllers Models under 1221 have nominal voltage options from 24-36 volts, 36-48 volts, 48-72 volts, 48-80 volts, and 72-120 volts and a current limit ranging from 400-600 amperes. In addition to that, it weighs 4.9 kg and is 282 mm in length, 180 mm in width, and 80 mm in depth. The controller can provide a better driving experience due to embedded features and optional features offered, which can be added according to the preference and demands of the desired application.


The Curtis 1221 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 24/36V 600A (0-5K) PMC 1221-4801 Curtis 24/36V 600A (0-5V) PMC 1221-4802 Curtis 24/36V 600A (5K-0) PMC 1221-4803
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Curtis 24/36V 600A (0-5K) PMC 1221-4804 Curtis 36/48V 550A PMC 1221-5701 Curtis 36/48V 550A PMC 1221-5702
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Curtis 36/48V 550A (5K-0) PMC 1221-5703 Curtis 36/48V 550A (0-5K) PMC 1221-5705 Curtis 48/72V 500A (0-5K) PMC 1221-6601
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Curtis 48/72V 500A (0-5K) PMC 1221-6602 Curtis 48/72V 500A (0-5V) PMC 1221-6603 Curtis 48/80V 550A PMC 1221-6A701
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Curtis 48/80V 550A (0-5K) PMC 1221-6A702 Curtis 48/80V 550A (0-5K) PMC 1221-6A703 Curtis 48/80V 550A (0-5K) PMC 1221-6A704
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Curtis 72/120V 400A (0-5K) PMC 1221-7401 Curtis 72/120V 400A (0-5V) PMC 1221-7402 Curtis 72/120V 400A (0-5V) PMC 1221-7403
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Curtis 72/120V 400A (6-11V) PMC 1221-7404 Curtis 72/120V 400A (0-5K) PMC 1221-7405 Curtis 72/120V 400A (0-5V) PMC 1221-7406
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Curtis 48/80V 550A (0-5K) PMC 1221B6A701 Curtis 48/80V 550A (0-5V) PMC 1221B6A702
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SPECIFICATIONS

NOMINAL VOLTAGE RANGE

24-36 V, 36-48 V, 48-72 V, 48-80 V, 72-120 V

CURRENT LIMIT RANGE

400-600 A

STANDBY CURRENT

100 mA

OPERATING FREQUENCY

15 kHz

TEMPERATURE RANGE DURING OPERATION

-25C to 75C


FEATURES

Feature

Purpose

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

Contactor Coils Protection

Protects the contactor drivers for forward, reverse, and bypass from short circuit

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

Static Return to Off

Allows a safe start by requiring the forward and reverse selector to be returned to a neutral position before allowing an output

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

Emergency Reverse

Stops the advancing vehicle swiftly to allow a smooth change in direction (reverse)

Bypass (for models in 12 and 24-36 volts)

Enables the motor to surpass the current limit to increase torque when necessary.


DIMENSIONS



WIRING DIAGRAM