Curtis 1205-101 Series Motor Controller, 24/36V 400A, 0-5k Throttle
- Replaces a controller whose label reads Curtis 1205-101
- New Curtis controller for series wound motors, 24 to 36V and 400A
- Takes a 0-5k two wire pot box throttle, such as the Curtis PB-6
- Does not fit: carts running a 48V pack
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Overview
The Curtis 1205-101 is a new 24 to 36V, 400A controller for series wound motors. It belongs to the Curtis 1204 and 1205 family, and it takes the standard 0-5k two wire throttle input, the kind a Curtis pot box provides.
We list it by exact label match. It replaces a controller whose label reads Curtis 1205-101. Curtis builds the 1205 in several voltage and current versions, so the part number on your label is the fitment.
It is a simple, sealed controller: four bus bars for the battery and motor cables and three push-on terminals for the key switch and the two throttle wires. There is nothing to program.
- Voltage
- 24V or 36V
- Controller
- 400A
Manuals and documents
Compatibility
Fits
- Universal by controller Vehicles whose controller label reads Curtis 1205-101
- Stock controller
- Curtis 1205-101
- Voltage
- 24V or 36V
- Years
- Identify by controller
Series wound motor with a 0-5k two wire pot box throttle
Does not fit
- Carts whose controller label reads something other than Curtis 1205-101
- Carts running a 48V pack, because this is a 24 to 36V controller
- Separately excited (regen) motors, which take a SepEx controller
- Vehicles with an ITS throttle sensor
- AC drive carts
- Gas carts
Have a 1205 with a different number on the label? Send us a photo and we will tell you what matches. support@golfcartlab.com
How to confirm it fits
Read the label on your existing controller. This part replaces a Curtis 1205-101.
Check the pack voltage. This controller is for 24V and 36V packs.
Check the throttle: two wires from a 0-5k pot box.
Send us a photo of the label if it is hard to read and we will match it for you.
Buying guide: A Beginner’s Guide to Replacing a Failed Golf Cart Controller
What's in the box
- One Curtis 1205-101 controller, new
Completes the install
Optional
The throttle on your vehicle is reused. This is the matching new one if yours needs replacing.
Specifications
- Brand
- Curtis
- Manufacturer part number
- 1205-101
- Type
- Controller for series wound motors
- Nominal battery voltage
- 24V or 36V
- Current limit
- 400A
- Current ratings
- 400A for 2 minutes, 275A for 5 minutes, 175A for 1 hour
- Throttle
- 0-5k two wire pot box
- PWM operating frequency
- 15 kHz
- Undervoltage cutback
- 16V
- Voltage drop at 100A
- 0.25V
- Standby current
- Less than 20 mA
- Power terminals
- B+, B-, M- and A2 tin-plated copper bus bars, M8 (5/16 in.) bolts
- Control terminals
- Three 1/4 in. push-on terminals: key switch input and two throttle inputs
- Recommended cable
- 25 mm2 (4 AWG) or heavier for the battery and motor cables
- Weight
- 2.7 kg (6 lb)
- Dimensions (L x W x H)
- 222 x 146 x 70 mm (8.75 x 5.75 x 2.8 in.)
- Mounting
- Four 7 mm (0.28 in.) holes, 133 x 130 mm (5.25 x 5.13 in.) apart
- Condition
- New
Requirements and install notes
Disconnect the battery pack and lift the drive wheels off the ground before you touch any terminal.
Label the four heavy cables (B+, B-, M- and A2) before you take them off the old controller, so every one goes back on the same bus bar.
Use two wrenches on each bus bar bolt, one on the bolt and one on the nut. Curtis warns that tightening with a single wrench can strain the internal connections and crack the seals around the bus bars.
Keep the pre-charge resistor across the solenoid. It charges the controller's capacitors gently and saves the solenoid contacts. With a can-type solenoid Curtis calls the resistor mandatory.
A coil suppression diode belongs on the solenoid coil. If yours is missing or damaged, replace it while the controller is out.
Check the pot box with an ohmmeter before you connect it: about 0 ohms with the pedal up, rising smoothly to about 5k with the pedal down.
Fasten the controller with four screws to a clean, flat metal surface. The surface is part of the heat sinking, so bare metal matters.
Any orientation is allowed. Curtis asks for a spot that stays as clean and dry as possible, with a cover if that is not possible.
FAQ
Which throttle does it take?
A 0-5k two wire pot box. Curtis lists its own PB-6 pot box for the 1204 and 1205, and says any pot box with a nominal 0-5k output works.
Can I use it in place of a different 1205 part number?
We list it only as a replacement for a controller labelled 1205-101. Other 1205 models are built for other voltages and currents. Send us your label and we will tell you what matches.
Does it need programming?
No. The 1205-101 has no programmer port. It works from the key switch input and the two throttle wires.
Will it run on a 48V pack?
No. The 1205-101 is a 24 to 36V controller. The 36 to 48V versions of the 1205 carry different part numbers.
Warranty
This part is new and covered by our returns and refunds policy. We handle any claim for a defective part directly with you. A controller damaged by a shorted motor, a failed solenoid or incorrect wiring is not covered, which is why the checks above come first.
Manufacturer part reference
- Manufacturer part number
- 1205-101
- GCL SKU
- 76-1205-101
