Harsen GU620A Generator Control Module
Upgrade your generator system with the Harsen GU620A Generator Control Module. This CE-certified digital AMF controller features a built-in LCD display, 8-35V DC operation, and DB9 RS communication for reliable, automated power management and monitoring.
Harsen GU620A Generator Control Module
The Harsen GU620A is a highly reliable digital Automatic Mains Failure (AMF) controller designed specifically for the automated management of generator sets. It features a clear LCD display screen and an intuitive front-panel interface with dedicated buttons for Auto, Manual, Stop, and Start operations, ensuring seamless control and system monitoring. Built for precision and safety, the module is equipped with comprehensive terminal blocks for Generator Volts (1-4), Mains Volts (5-9), and Current sensing (10-18). Additionally, it includes an RS communication port (DB9) for data transfer and remote monitoring, alongside a pickup sensor input. Operating efficiently on a wide DC voltage range of 8-35V and certified with the CE mark, the GU620A guarantees industry-standard performance and protection for your power generation infrastructure.
Technical Specifications:
- Brand / Model: Harsen GU620A
- Controller Type: Digital Automatic Mains Failure (AMF) Controller
- Power Input: DC 8-35V ⎓ 0.4A
- User Interface: LCD display with Auto, Manual, Stop, and Start push-buttons
- Sensing Terminals: Generator Volts (1-4), Mains Volts (5-9), Current sensing (10-18)
- Communication & Inputs: RS communication port (DB9) and magnetic pickup sensor input
- Compliance: CE Certified

| Brand | Harsen |
|---|---|
| Model | GU620A |
GENERAL DELIVERY INFORMATION
Thank you for visiting and shopping at www.zxanhyd.com. Following are the terms and conditions for the Shipping Policy for ZXAN Hydraulic.
Orders will be processed and shipping during standard working hours (0830 – 1730 BST) Monday to Friday (excluding Bank Holidays)., are processed and despatched on the same business day. If we are experiencing a high volume of orders, shipments may be delayed by 1-2 Days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
NTERNATIONAL DELIVERY RATES & ESTIMATES
Shipping charges for your order will depend on weight and country the order is to be shipped to. All cost will be calculated and displayed at checkout. All orders for delivery within the Asia will arrive on a 2-5 day delivery service depending on Country location. All shipments outside the Asia will arrive on a 3–7-day delivery service depending on Country location. Please check for accurate delivery times with our Sales department. If you Parcel has not arrived within the time expected please do not hesitate to contact us. Please ensure the ship to address you type during checkout is correct. We are not responsible for any wrong or undeliverable addresses.
CUSTOMS, DUTIES AND TAXES
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling cost. These charges are the buyer’s responsibility as we are only charging the transportation fee for your order. You may check with your country’s customs office to determine if there will be additional costs. The buyer is responsible for obtaining information regarding their country’s laws, regulations, and restrictions that may apply when purchasing our products. By placing an international order (shipping outside of the China) the buyer is responsible for abiding by their country’s laws, regulations, and restrictions. If product is seized and destroyed by customs, we will NOT be responsible for the losses, product, or shipping refunds.
SHIPMENT CONFIRMATION & ORDER TRACKING
You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.
WORKING CLOSELY WITH TOP CARRIER EXPERTS
We use some of the top carrier companies in the world, although you can use your own carrier to collect the order. All deliveries require a signature on delivery. Below are our main carrier companies.

DAMAGES
ZXAN Hydraulic is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
RETURNS POLICY
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.

