Curtis 1520-5501 48V 500A DC Motor Controller Sepex Apply to Forklift

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: 1520-5501
• Material: Stainless Steel
• Surface Treatment: Polishing
• Customized: Customized
• Standard: Standard
• Weight: 3.6kg
• Logic Input Current: <2 Ma
• Status LED Output Current (Max.): <2 Ma
• PWM Operating Frequency: 15.6 kHz
• Place of Origin: Anhui, China
• Model Number: 1520-5501
• Current Rating (AMPS): 500A
• Dimensions: L198 *W114 *H68 mm
• Compatible Equipment Type: Forklift
• Power Source: DC
• Voltage: 48V
• Transport Package: Box
• Specification: L198 *W114 *H68 mm
• Trademark: ECAS
• Origin: China
• HS Code: 8537109090
• Production Capacity: 36000PCS/Year
• Package Size: 25.00cm * 25.00cm * 16.00cm
• Package Gross Weight: 3.600kg

Product Description

     
48V 500A Curtis DC Motor Controller 1520-5501 suited Golf Cart & Electric Motorcycle

Product Description

-1520-5501 provide fully programmable control of DC series motors performing on-vehicle traction or pump duties.

These microprocessor-based MOSFET controllers add flexibility and versatility to the time-proven Curtis series motor controller family.

-Primarily designed for battery-powered vehicle applications using either electric or hydrostatic traction. These include industrial trucks, personnel carriers, mobile elevating work platforms, and golf and utility vehicles

 

Specification:

• PWM operating frequency: 16 kHz
• Electrical isolation to heatsink (min.): 500 VAC
• KSI input voltage (minimum): 16.8 V

Overview:

CURTIS 1520 controllers are separately excited motor speed controllers designed for use in a variety of transport vehicles. These programmable controllers are simple to install, efficient, and cost effective. Typical applications include golf carts and small utility vehicles.

The 1520 controller offers smooth, silent, cost effective control of motor speed and torque. The speed sensor input allows superior closed-loop control for regulating vehicle speed. Unique braking parameters allow simple, intuitive deceleration tuning. A full-bridge field winding control stage is combined with a half-bridge armature power stage to provide solid state motor reversing and regenerative braking power without additional relays or contactors.

 

Key Feature:

• CURTIS Model: 1520-5501
• Norminal Battery Voltage (Volts): 48V (default setting) or 36V
• Amature 2 minute current rating (amps): 275
• Field 2 minute current rating (amps): 20
• KSI input current (typical):
  • 160 mA without programmer
  • 200 mA with programmer
• Logic enable and logic power input voltage (minimum): 16.8 V
• Logic enable and logic power input current (no contactors engaged): 160 mA without programmer; 200 mA with programmer
• Logic input voltage: 20.0 V High; 7.5 V Low
• Logic input current 10 mA
• Throttle Type: various throttles can be used with the 1266 controller, including 5kΩ 3-wire potentiometers and 0-5V throttles
• Ambient operating temperature range: -40°C to 50°C
• Heatsink overtemperature cutback: starts at 85°C; cutoff at 95°C
• Heatsink undertemperature cutback: 50% armature current at -25°C
• Package environmental rating: IP5X

Features

Product name	DC Motor Controller	Car Fitment	Electric Sightseeing Bus lifted Golf Cart forlift etc.
Voltage Options	48V	Current	500A
Model	1520-5501	Temperature	-40°C to 50°C
Color	Black	Type	DC Motor
Size	L198 *W114 *H68 mm	Warranty	2 years
MOQ	1 PCS	Port	Ningbo/Shanghai

Dimension Manual 

CURTIS DC Motor Controller 1520-5501

Programmable, 48V / 500A, Golf Cart Motor Controller

Overview:

The Curtis model 1520-5501 provides advanced control of DC induction motors performing on-vehicle traction drive or hydraulic pump duties and offers the highest levels of functional safety.

Specifications:
 

PWM operating frequency	Electrical isolation to heatsink (min.)	PWM operating frequency	Maximum encoder frequency	Maximum controller output frequency	Heatsink overtemperature cutoff	Heatsink undertemperature cutoff
15.6 kHz	500 VAC	10 kHz	15.6 kHz	300 Hz	linear cutback starts at 85°C; complete cutoff at 95°C	complete cutoff at -40°C

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  Application Vehicle Example

   

  

   

• Key Features:
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• Features Include:

• 1. Core Functions

• Motor Control:

  • Regulates speed and torque of the traction motor (drive system) and hydraulic pump motor (lifting/steering).

  • Smooth acceleration/deceleration for load stability.

• Directional Control:

  • Forward/reverse switching with programmable speed limits.

• Lift & Tilt Management:

  • Precision control of hydraulic valves for lifting/lowering forks and mast tilt.

• 2. Technical Specifications

• Voltage Range: Compatible with common forklift systems (e.g., 24V, 48V, or 80V DC).

• Current Rating: Supports high-current loads (e.g., 300A+ peak for heavy-duty models).

• Communication Protocols:

  • CAN Bus (J1939 or custom forklift protocols) for integration with displays, sensors, and diagnostics.

  • Analog/PWM inputs for throttle, potentiometers, or joystick controls.

• 3. Safety & Protection

• Overload Protection: Auto-cutoff for excessive current or temperature.

• Error Diagnostics: Fault codes for motor/encoder failures, short circuits, or low voltage.

• Emergency Stop (E-Stop): Hardwired safety circuit support.

• 4. Programmability & Interfaces

• User-Adjustable Parameters:

  • Speed limits, acceleration curves, regenerative braking intensity.

• Display Integration:

  • Works with OEM dashboards or aftermarket monitors (e.g., LED/LCD readouts for fault codes).

• 5. Environmental Durability

• IP Rating: Dust/water resistance (e.g., IP65 for warehouse use).

• Temperature Range: Operates in -20°C to +60°C conditions.

• 6. Compatibility

• Designed for electric forklifts (e.g., brands like Toyota, Hyster, Yale, or Crown).

• May support AC or DC motors (confirm model specifics).

• Products And Services:
  
  Production Line:
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    Exhibition Pictures

     

     

    

    

    
     

    Company Profile

     

     

    Our company is located in HEFEI City, ANHUI Province China, is the large-scale professional agriculture Machinery,Forklift Parts manufacturer with integration of  manufacturing, export and after-sale service. Establish in 2017, by now Forklift electrical accessories basically cover the vehicles of major domestic brands( Such as Zhongli,Nuoli,Afterburner,Heli,Baoli,TCM TEU)
    
    The company′s main products cover Electric Vehicles,Electric Forklifts,Motor Controller ,Lithium battery and sell parts and accessories for electric Vehicles ,including motors Electric Controls ,meters,accelerators,control handles ,DC converters,power connectors ,wiring harness,Various electrical switches and so on.
    
    We have professional quality inspection department, every machine will be tested 3 times before delivery in order to make sure the machinery in future. 
    
    With high quality product, competitive price, and best after-sale service, we have gained good reputation from all over the world, such as Europe, South Korea North, America, Central and South America, Africa, Australia, New Zealand and so on.Base on it ,we welcome buyers from all over the world.

    FAQ

     

    Q: Can I have a sample order?
    A: yes, we welcome sample orders to test and check quality.
    
    Q: Do you offer a guarantee for the products?
    A: Yes, we offer a 1-year warranty on our products.
    
    Q: Which shipping will you offer?
    A: By sea, air,  DHL, FedEx, TNT, UPS, EMS, SF 
    
    Q: How to proceed with an order?
    A: Firstly let us know your requirements or application. Secondly, We quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places a deposit for formal order. Fourthly We arrange the production.
    
    Q: Is it OK to print my logo on the product?
    A: Yes. Please inform us formally before our production and confirm the design first based on our sample.
    
    Q: Do you have any MOQ limit?
    A: Low MOQ, 1pc for sample checking is available