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4QD-200 24V-60V 300A Speed Controller
Price: $399.99
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Availability: Available
Item #: 200-48 -

The 4QD-200 is a heavy duty motor controller for currents up to 230A. Features - 4 quadrant operation - Gain adjustment. - Adjustable acceleration and decelerationramps. - Input by 1k ohm to 22k ohm potentiometer, direct voltage -control, or PWM control by Pi or Arduino etc. - Regenerative braking [can be disabled]. - Reversing. - Over temperature shutdown. - Battery discharge protection. - Pot fault protection. - High Pedal Lock-out. - Inhibit input for interlock with mechanical brake,...

4QD-300 24V-60V 300A Speed Controller
Price: $499.99
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Availability: Available
Item #: 300-48 -

The 4QD-300 is a heavy duty motor controller for currents up to 300A. Features - 4 quadrant operation - Gain adjustment. - Adjustable acceleration and decelerationramps. - Input by 1k ohm to 22k ohm potentiometer, direct voltage -control, or PWM control by Pi or Arduino etc. - Regenerative braking [can be disabled]. - Reversing. - Over temperature shutdown. - Battery discharge protection. - Pot fault protection. - High Pedal Lock-out. - Inhibit input for interlock with mechanical brake,...

4QD PRO-120 24V Speed Controller
Price: $299.99
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Availability: Available
Item #: PRO120-24 -

Description The Pro-120 Mk2 is the culmination of the analogue Pro and NCC series development. It is designed principally for 24V operation but variants for 12V, 36V, and 48V have been produced. The Pro-120 has been fitted to a multitude of applications including, mobility scooters, golf buggies, miniature railways, childrens electric cars, floor cleaners, caravan shifters and vehicle loaders. Features - Adjustable acceleration and deceleration ramps. - Gain adjustment [for setting top...

4QD PRO-120 36V Speed Controller
Price: $311.99
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Availability: Available
Item #: PRO120-36 -

Description The Pro-120 Mk2 is the culmination of the analogue Pro and NCC series development. It is designed principally for 24V operation but variants for 12V, 36V, and 48V have been produced. The Pro-120 has been fitted to a multitude of applications including, mobility scooters, golf buggies, miniature railways, childrens electric cars, floor cleaners, caravan shifters and vehicle loaders. Features - Adjustable acceleration and deceleration ramps. - Gain adjustment [for setting top...

4QD DMR-203 Radio Control Interface
Retail: $84.99
Price: $79.99
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(1)
Availability: Available
Item #: DMR-203 -

Description The DMR-203 is a general purpose dual-channel radio control interface providing proportional motor speed control from a standard radio control system e.g. Spektrum, Futaba etc. It accepts two standard PPM inputs from the RC receiver and converts these to a suitable signal to operate two of our controllers, such as the DNO, PRO or 4QD ranges. Applications include - Robots - Model railways - Model tanks - Remote controlled vehicles - Special effects - Other applications where...

4QD Standard 10K Potentiometer
Price: $4.99
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Availability: Available
Item #: POT-103 -

This 10k potentiometer has a 6mm diameter shaft and 300 degrees of travel. It is suitable for use with most 4QD motor controllers.4QD-POT-103

4QD 50 degree 10K pot
Price: $7.99
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Availability: Available
Item #: POT-050 -

It is a 'standard' 10K pot (i.e. with 300 degrees of mechanical travel) but with the active part of the track (i.e. the pactiula resistive track) occupying only the center 50 degrees of the mechanical travel.It has a 6mm diameter shaft and is normally used in our Fingertip throttle mechanism.It is not recommended for operation from radio control servos which require a track of more than 90 degrees!4QD-POT-050

4QD JSB-002 Joystick Interface Board
Price: $24.99
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Availability: Available
Item #: JSB-001 -

A joystick (aka wig-wag control) is essentially a potentiometer with a lever attached. As you move the lever forward from the centre position the motor starts to rotate in one direction. Moving the lever backwards causes the motor to rotate in the opposite direction. This interface converts a single DNO, VTX or Pro-120 series controller to joystick input. The 6 way connector is for pin-to-pin connection with the Pro-120, DNO, or VTX. The 3 way connection is for the ignition switch and battery...

Fingertip Throttle Mechanism (Left Hand)
Price: $26.99
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(1)
Availability: Available
Item #: BNL-103 -

The 'Naked Bell Assembly' is a finger-tip throttle assembly (speed control mechanism) using the 50 degree pot. It has a spring return to zero and is supplied with a mounting bracket and a vinyl-capped lever. The spring is light operation to minimize finger strain from continuous pressure on an over-strength spring, yet is still strong enough to ensure reliable operation. The lever can safely be bent if a different shape is needed. This feature means that if the lever gets accidentally bent, it...

Fingertip Throttle Mechanism (Right Hand)
Price: $26.99
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Availability: Available
Item #: BNR-203 -

The 'Naked Bell Assembly' is a finger-tip throttle assembly (speed control mechanism) using the 50 degree pot. It has a spring return to zero and is supplied with a mounting bracket and a vinyl-capped lever. The spring is light operation to minimize finger strain from continuous pressure on an over-strength spring, yet is still strong enough to ensure reliable operation. The lever can safely be bent if a different shape is needed. This feature means that if the lever gets accidentally bent, it...

4QD PRO-150 Speed Controller - Complete
Price: $324.99
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Availability: Available
Item #: PRO-150-complete -

Description Probably the most user-friendly programmable motor controller available. Programming is easy, using the (optional) low-cost combined display / programmer unit. Features - Will function as a standard controller without any programming. - Optional display shows system state and battery voltage. - Programmable control over many features including: - Acceleration. - Deceleration. - Maximum power. - Dead band. - Sounder [for reversing and audible problem alert] - Pot learning feature...

4QD-300 24V-60V 300A Speed Controller with Liquid-Cooled Heatsink
Price: $625.99
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Availability: Available
Item #: 300-48L -

The 4QD-300 is a heavy duty motor controller for currents up to 300A. Features - 4 quadrant operation - Gain adjustment. - Adjustable acceleration and decelerationramps. - Input by 1k ohm to 22k ohm potentiometer, direct voltage -control, or PWM control by Pi or Arduino etc. - Regenerative braking [can be disabled]. - Reversing. - Over temperature shutdown. - Battery discharge protection. - Pot fault protection. - High Pedal Lock-out. - Inhibit input for interlock with mechanical brake,...

4QD-300 24V-60V 300A Speed Controller with Finned Heatsink
Price: $599.99
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Availability: Available
Item #: 300-48X -

The 4QD-300 is a heavy duty motor controller for currents up to 300A. Features - 4 quadrant operation - Gain adjustment. - Adjustable acceleration and decelerationramps. - Input by 1k ohm to 22k ohm potentiometer, direct voltage -control, or PWM control by Pi or Arduino etc. - Regenerative braking [can be disabled]. - Reversing. - Over temperature shutdown. - Battery discharge protection. - Pot fault protection. - High Pedal Lock-out. - Inhibit input for interlock with mechanical brake,...

Porter PT2-05 Single-Direction 12-48V 50A Speed Controller
Price: $99.99
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Availability: Available
Item #: PT2-05X -

Description The Porters are tough, low cost, single direction controllers that can work from 12V to 48V without adjustment. Particularly suitable for karts, golf caddies, electric bikes, equipment handling, and industrial applications, they are designed to be simple to install and use, and have very simple wiring. They are also often used to give a soft start. Features - Adjustable acceleration and deceleration ramps allow smooth, controllable performance. - Integral box and heatsink. -...

Porter PT2-10XX Single-Direction 12-48V 100A Speed Controller
Price: $129.99
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Availability: Available
Item #: PT2-10XX -

Description The Porters are tough, low cost, single direction controllers that can work from 12V to 48V without adjustment. Particularly suitable for karts, golf caddies, electric bikes, equipment handling, and industrial applications, they are designed to be simple to install and use, and have very simple wiring. They are also often used to give a soft start. Features - Adjustable acceleration and deceleration ramps allow smooth, controllable performance. - Integral box and heatsink. -...

Porter PT2-10 Boxed Single-Direction 12-48V 100A Speed Controller
Price: $119.99
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Availability: Available
Item #: PT2-10boxed -

Description The Porters are tough, low cost, single direction controllers that can work from 12V to 48V without adjustment. Particularly suitable for karts, golf caddies, electric bikes, equipment handling, and industrial applications, they are designed to be simple to install and use, and have very simple wiring. They are also often used to give a soft start. Features - Adjustable acceleration and deceleration ramps allow smooth, controllable performance. - Integral box and heatsink. -...

4QD PRO-150 Speed Controller - Board Only
Price: $279.99
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Availability: Available
Item #: PRO-150b -

Probably the most user-friendly programmable motor controller available. Programming is easy, using the (optional) low-cost combined display / programmer unit. Features - Will function as a standard controller without any programming. - Optional display shows system state and battery voltage. - Programmable control over many features including: - Acceleration. - Deceleration. - Maximum power. - Dead band. - Sounder [for reversing and audible problem alert] - Pot learning feature allows: -...

4QD PRO-150 Speed Controller - Boxed
Price: $299.99
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Availability: Available
Item #: PRO-150-boxed -

Description Probably the most user-friendly programmable motor controller available. Programming is easy, using the (optional) low-cost combined display / programmer unit. Features - Will function as a standard controller without any programming. - Optional display shows system state and battery voltage. - Programmable control over many features including: - Acceleration. - Deceleration. - Maximum power. - Dead band. - Sounder [for reversing and audible problem alert] - Pot learning feature...

4QD DNO-005 12-36V 50A Speed Controller
Price: $189.99
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Availability: Available
Item #: DNO-005-boxed -

Description The DNO is a popular mid-sized motor control with built-in reversing suitable for use in 12V to 36V applications. Features - 12V, 24V, and 36V operation easily selectable by internal link [default is 24V]. 48V operation is possible, see notes in specification tab. - Built-in heavy duty reversing relays. - Integral box and heatsink [suitable for most applications]. - Timed over load trip [controller switches off if high current is sustained]. - Reverse battery protection. - Gain...

4QD DNO-010 12-36V 100A Speed Controller
Price: $219.99
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Availability: Available
Item #: DNO-010-boxed -

Description The DNO is a popular mid-sized motor control with built-in reversing suitable for use in 12V to 36V applications. Features - 12V, 24V, and 36V operation easily selectable by internal link [default is 24V]. 48V operation is possible, see notes in specification tab. - Built-in heavy duty reversing relays. - Integral box and heatsink [suitable for most applications]. - Timed over load trip [controller switches off if high current is sustained]. - Reverse battery protection. - Gain...

4QD PRO 150 Display / Programmer
Price: $39.99
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Availability: Available
Item #: PRO-DSS -

The PRO 150 Display / Programmer is supplied as a single unit which can be broken apart so that the display and programmer can be used and mounted separately if required.The ‘programmer' board's three buttons are1. Select: used to Select and accept the new value2. + and – buttonsThese increase/decrease the value being displayed.When the required value is displayed, pressing Select will accept it.The programming system is carefully designed to be easy and quick and intuitive. It is fast to...

4QD JSB-002 Joystick Interface Board
Price: $34.99
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Availability: Available
Item #: JSB-002 -

A joystick (aka wig-wag control) is essentially a potentiometer with a lever attached. As you move the lever forward from the centre position the motor starts to rotate in one direction. Moving the lever backwards causes the motor to rotate in the opposite direction. This interface converts a single DNO, VTX or Pro-120 series controller to joystick input. The 6 way connector is for pin-to-pin connection with the Pro-120, DNO, or VTX. The 3 way connection is for the ignition switch and battery...

4QD HRB-312 Horn Relay Board
Price: $32.99
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Availability: Available
Item #: HRB-312 -

These HRB relay boards are designed to control 3 or 4 relays from one of the 4QD hand throttles. Often used for lights and horns on model locomotives they can be used in many other applications. The circuit allows control of either 3 or 4 relays with only 2 or 3 wires. It also has a number of ''break points'' on the circuit board that gives it a lot of flexibility to be used with [e.g. sound] systems that require isolated switch inputs.Miniature locomotives often need to operate twin horns and...

4QD HRB-324 Horn Relay Board
Price: $32.99
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Availability: Available
Item #: HRB-324 -

These HRB relay boards are designed to control 3 or 4 relays from one of the 4QD hand throttles. Often used for lights and horns on model locomotives they can be used in many other applications. The circuit allows control of either 3 or 4 relays with only 2 or 3 wires. It also has a number of ''break points'' on the circuit board that gives it a lot of flexibility to be used with [e.g. sound] systems that require isolated switch inputs.Miniature locomotives often need to operate twin horns and...