LONGO Relay – Precision Electromagnetic Relays for Industrial & Automotive Applications

About LONGO

LONGO Relay was founded in 2000 and has steadily expanded from manufacturing household and general-purpose relays to becoming a leading producer of a wide range of relays and industrial components. We are committed to product consistency, reliability, and full traceability.

Our vertically integrated manufacturing process spans from R&D and mold development to parts production, injection molding, automated assembly, and online testing — all under one roof. This ensures unmatched quality control and rapid innovation.

2000

Founded

20+

Years Experience

50+

Countries Served

Our Products

Engineered for performance, durability, and precision. Explore our comprehensive range of relays designed for industrial, automotive, and consumer applications.

DMY4C-LT 24VDC

4PDT PCB Relay, 24VDC Coil, High Load Capacity

• 10A @ 250VAC
• Sealed Type
• RoHS Compliant

DMY2C-LT 230VAC

2PDT PCB Relay, 230VAC Coil, Industrial Grade

• 10A @ 250VAC
• High Insulation Resistance
• Long Mechanical Life

DMY2C-LT 24VDC

2PDT PCB Relay, 24VDC Coil, Compact Design

• 10A Switching Capacity
• Low Power Consumption
• UL & VDE Certified

DMY4C-LT 230VAC

4PDT PCB Relay, 230VAC Coil, High Reliability

• 10A @ 250VAC
• Flame Retardant Case
• Wide Operating Temp

LG2RV-1-S

Miniature PCB Relay, SPDT, 5VDC

• 2A @ 250VAC
• Ultra-Compact Size
• Ideal for IoT Devices

MY2C-L G 24VDC SE

Industrial Relay, 2PDT, 24VDC

• 8A @ 250VAC
• High Shock Resistance
• DIN Rail Mountable

14FC Series

PCB Power Relay, High Current

• Up to 16A Rating
• Fast Switching
• Low Contact Resistance

Relay Sockets

Matching Sockets for DMY, MY, and LG Series

• Flame Retardant Material
• Secure Terminal Grip
• Easy Plug & Play

View Full Catalog

Why Choose LONGO?

Engineered excellence backed by decades of innovation and quality assurance.

Quality Assurance

12-month quality guarantee and full equipment maintenance support throughout product lifespan. UL, VDE, and RoHS certified.

Vertical Integration

Full control from R&D to automated assembly ensures consistency, traceability, and rapid customization.

Customization & Support

On-site inspections welcome. Factory acceptance testing available. Spare parts guaranteed during warranty and beyond.

Frequently Asked Questions

What types of relays does LONGO manufacture?

LONGO produces General-Purpose Relays, PCB Relays, Automotive Relays, and Relay Sockets. Our product lines include DMY, MY, LG, and 14FC series for industrial, home appliance, and automotive applications.

Are LONGO relays certified?

Yes. Our relays are UL, VDE, and RoHS certified. We adhere to international quality standards and provide full documentation upon request.

Can I request custom relay specifications?

Absolutely. LONGO offers OEM/ODM services. Our engineering team can customize coil voltage, contact configuration, packaging, and more.

What is the warranty period?

We provide a 12-month quality guarantee and ensure spare parts availability throughout the product’s operational life.

Where is LONGO located?

Our headquarters and manufacturing facility are located at No.49 Kaifa Road, Beibaixiang Electronic Industry Zone, Wenzhou, Zhejiang 325603, China.

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Precision Electromagnetic Relays for Industrial & Automotive Applications