1204M-5203 (275A) Forklift parts series wound controller 36-48V
Product Description
The 1204M-5203 (275A) Series Wound Controller is a high-current motor controller designed for 36V–48V electric vehicles and material handling equipment using series-wound DC motors.
With a rated current of up to 275A, this controller provides reliable motor control, smooth acceleration and effective power management. It is suitable for applications such as electric forklifts, pallet trucks, industrial vehicles and other DC traction equipment.
Product Specifications
| Product Name | Controller |
| Model Number | 1204M-5203(275A) |
| Code | A.B.01.02.0527A1 |
| Weight | 2.5kg |
|
Application |
USED FOR FORKLIFT |
|
Norminal Battery Voltage (Volts) |
48V (default setting) or 36V |
|
2 Minute Current Rating (amps): |
275 |
|
Plug Braking (A2 Busbar) |
Yes |
|
Electrical isolation to heatsink (min.) |
500 VAC |
|
Dimensions |
L173xW146xH77 mm |
|
Operating ambient temperature range |
-40°C to 50°C |
|
Storage ambient temperature range |
-40°C to 85°C |
|
Status LED output current (max.) |
< 2 mA |
Detail Photos

High Current Capacity
Rated up to 275A, providing strong current-handling capability for demanding traction applications.
Wide Voltage Compatibility
Designed for 36V and 48V DC systems, making it suitable for various industrial electric vehicles.
Stable Motor Control
Provides controlled power delivery to the traction motor for smooth vehicle operation and responsive acceleration.
Series-Wound Motor Compatibility
Specifically designed for applications using series-wound DC traction motors.

Reliable Performance
Designed for stable operation in demanding industrial applications.
High-Current Design
The 275A rating supports high-power traction motor applications.
B2B Supply Capability
Suitable for forklift parts distributors, dealers, repair companies and fleet maintenance providers.
Replacement Support
We can assist customers in confirming compatibility based on the original controller information, equipment model and technical specifications.
Flexible Supply
Suitable for individual replacement requirements as well as bulk purchasing and distributor orders.

Installation & Maintenance
Before replacing the controller:
Disconnect the vehicle battery and ensure the system is completely powered off.
Record the wiring and terminal connections of the original controller.
Remove the old controller carefully.
Install the replacement controller according to the equipment's wiring diagram.
Check all terminals and connectors for proper contact.
Reconnect the battery and inspect the system before operation.
Conduct a no-load functional test before returning the vehicle to normal service.
Installation should be performed by qualified technicians familiar with DC motor control systems.
Packaging & Shipping

Packing Details : Foam Protection, Individually Bagged, Packed into boxes, Standard Packing: Boxes+ Carton+ Pallet Packing or According to customers' requirement
Delivery Details : 7-10 working days after down payment received
1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,
2. By Air: Delivery from the Shanghai air port to customer's destination city air port.
3. By Sea: Delivery from the Shanghai sea port .
Company Profile


FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q:What type of motor does it support?
A: It is designed for series-wound DC motors. Please confirm the motor configuration before purchasing.
Q: How to order ?
A: Pls contact me through email, Tel, skype or whatsapp,tell me what you need and I will offer according to your requirement .After you confirm , I will send PI for payment .
Q: How can I confirm compatibility?
A:Send us the original controller model/part number, equipment model, battery voltage and photos of the controller and connectors. We can help you check the specifications.
Q: How to deliver ?
A: for small order, we will deliver by express, such as DHL, FEDEX, UPS,TNT.etc
for large order , we can deliver by air or by ship .
Q: About payment ?
A: we accept : T/T, PAYPAL, WESTERN UNION or L/C
as usual , 30% advance payment in advance .
