Product Highlight: FTR-L1 series
New Relay Series for AI Server Power Supply Units
It takes careful engineering to ensure the servers that process advanced AI algorithms and applications have proper power management to do the job. Getting it right is critical, because demand for power-hungry AI servers is skyrocketing.
To serve that market, FCL Components is developing a new line, the FTR-L1 series slim low height relays for automatic transfer switching.
To ensure reliability and prevent downtime, many AI servers rely on redundant, high-wattage PSUs—making relay performance more critical than ever. In AI servers, the Power Supply Unit (PSU) plays a pivotal role in delivering stable, high-capacity power to components such as high-performance GPUs. Within the PSU, the FTR-L1 relay series’ role is to switch another power supply circuit promptly.
Our new FTR-L1 Series relays, including the FTR-L1 and FTR-L1R models, are engineered specifically for PSUs in AI server environments, Uninterruptible Power Supply (UPS) applications, Automatic transfer switches (ATS), and various power supplies.
Key Features of the FTR-L1 Series:
Compact, high-current designs:
- FTR-L1: 25A, 277VAC
- FTR-L1R: 40A, 277VAC
2-coil latching functionality:
- Maintains state without continuous power, reducing energy consumption.
1a+1b contact configuration
- Suitable for switching AC power supply units.
- Wide contact gap (4.5 mm) with 2,500VAC dielectric strength between open contacts.
The L1 Series is designed in accordance with IEC 62368-1:2023 safety standards and built to operate in extreme environments—at altitudes up to 5000 meters.
Made in Malaysia:
- The FTR-L1 series has been developed in our design center in Japan and will be manufactured in our Malaysian facility.
Specifications (preliminary)
| Type | FTR-L1 | FTR-L1R |
| Operating Function | 2 coil latching | |
| Contact configuration | 1a + 1b | |
| Contact rating | 25A, 277VAC | 40A, 277VAC |
| Rated coil voltage | 12VDC, 24VDC | |
| Contact gap | 4.5mm | |
| Dimensions | 50mm x 20mm x 27mm | |
| Factory | Malaysia | |
Note: Contact ratings listed in product specifications may differ from those required by safety standards.