Description
Curtis 1268-5501 Replacement Specifications
| Specification | Details |
|---|---|
| Model | Curtis 1268-5501 |
| Motor Type | Separately Excited (SepEx) DC Motor |
| Voltage | 36–48V |
| Current Limit | 500A |
| 2-Minute Armature Rating | 500A |
| 2-Minute Field Rating | 50A |
| PWM Frequency | 16 kHz |
| Throttle Input | 0–5KΩ |
| Operating Temperature | -40°C to +50°C |
| Dimensions | 229 × 178 × 81 mm |
| Weight | 3.9 kg |
| Protection | IP64 / IP67 |
The Curtis 1268-5501 provides 500A armature current and 50A field current for short-duration operation. Its 16 kHz operating frequency supports smooth and quiet motor control.
Key Features of the Curtis 1268-5501 Replacement
36-48V 500A SepEx Motor Control
The Curtis 1268-5501 replacement is designed for separately excited DC motors. Independent control of the armature and field circuits allows precise management of vehicle speed and torque, making it suitable for demanding electric transport applications.
Programmable Vehicle Control
The controller provides adjustable parameters for speed, torque, braking, and motor characteristics. Curtis 1311 and 1314 programming tools can be used for parameter adjustment and system diagnostics.
Regenerative Braking and Safety Functions
The 1268-5501 supports regenerative braking and includes features such as anti-rollback, anti-stall, high-pedal disable, WalkAway braking, short-circuit protection, and diagnostic status indication. A Hall-effect speed sensor can improve closed-loop speed control.
Curtis 1268-5501 Replacement Applications
The Curtis 1268-5501 replacement is suitable for compatible applications including:
- Heavy-duty golf carts
- Electric utility vehicles
- Personnel carriers
- Transport vehicles
- Industrial electric vehicles
- Other SepEx-powered vehicles
The 1268-5501 is particularly suited to higher-power transport applications where a 500A controller is required.
Throttle Compatibility
Before ordering a Curtis 1268-5501 replacement, verify the existing throttle system. This model uses a 0–5KΩ throttle input. The throttle resistance range, wiring, and signal configuration should match the replacement controller.
How to Choose a Curtis 1268-5501 Replacement
Verify the battery voltage, SepEx motor type, armature and field current requirements, throttle configuration, speed sensor, brake system, wiring, and vehicle model before purchasing.
A replacement should not be selected based only on voltage and current. Proper programming and vehicle-specific configuration may also be required.
Get a Curtis 1268-5501 Replacement
If you need a Curtis 1268-5501 replacement for a golf cart, utility vehicle, or heavy-duty electric transport vehicle, provide the original controller model, vehicle information, motor specifications, battery voltage, and throttle type for compatibility verification.
Contact us for replacement pricing, compatibility checking, programming support, OEM customization, and bulk orders.
DIMENSIONS
WIRING DIAGRAM
Wiring Diagram for 1268 with EM brake
Wiring Diagram for 1268 with WalkAway function
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