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Home / News / Industry News / FH30L-90 Series High-Power New Energy Relay | 90A High-Current Switching, the Core Control Component for Charging Piles and Smart Buildings
Content
- 1 Why Choose the FH30L-90 Series Relay?
- 2 Robust Structure and Wide Environmental Adaptability
- 3 Typical Applications
- 4 Product Series and Selection Guide
- 5 Frequently Asked Questions
- 5.0.1 Q1: What is the FH30L-90 Series?
- 5.0.2 Q2: What is the difference between FH30L-90 and FH30LD-90?
- 5.0.3 Q3: What is the insulation performance of the FH30L-90 Series?
- 5.0.4 Q4: What is the operating temperature range of the FH30L-90 Series?
- 5.0.5 Q5: What is the life expectancy of the FH30L-90 Series?
- 6 About Us
In high-power scenarios such as EV charging piles, smart home control systems, and industrial lighting, a relay is not just about "on and off." It must switch reliably under high current, maintain its state after power loss, and continue working in harsh environments over the long term. The FH30L-90 Series High-Power New Energy Relay is designed exactly for these demanding requirements. The series includes the AC load type FH30L-90 and the DC load type FH30LD-90, offering 90A high-current switching capability, low-power driving, and high insulation design, making it a reliable choice for new energy and industrial control applications..
Why Choose the FH30L-90 Series Relay?
Excellent Load Capability for High-Power Challenges
The FH30L-90 Series offers 90A high-current switching capability, easily handling high-load circuits:
| Load Type | Rated Load | Maximum Switching Capacity |
|---|---|---|
| AC (FH30L-90) | 90A 277VAC | 22500VA |
| DC (FH30LD-90) | 90A 60VDC | 5400W |
FH30L-90 High-Power New Energy RelayThe FH30L-90 Series is a high-power new energy relay available in AC (FH30L-90) and DC (FH30LD-90) versions, delivering 90A switching at 277VAC or 60VDC (up to 22500VA/5400W) with 300 operations of 2000A short-circuit breaking. Its magnetic latching design reduces coil power to as low as 1.5W while maintaining state without continuous power, and it offers high insulation, a wide -40℃ to +85℃ operating range, and long mechanical life—ideal for EV charging piles, smart buildings, and industrial power management.View Product →
Under abnormal conditions, the series provides strong short-circuit withstand capability, reliably breaking short-circuit currents up to 2000A for 300 operations (duration 0.3ms), buying valuable time for system protection and ensuring equipment safety.
FH30LD-90 High-Power New Energy RelayThe FH30LD-90 is a magnetic latching relay engineered for DC switching, capable of handling 90A at 60VDC with a 5400W maximum switching capacity. It can reliably break 2000A short-circuit currents for 300 operations and holds its contact state without continuous coil power, with power consumption as low as 1.5W. Featuring high insulation, a -40℃ to +85℃ operating range, and 500,000 mechanical operations, it suits photovoltaic systems, DC charging modules, and industrial power control.View Product →
Long Electrical Life and Excellent Reliability
| Item | Parameter |
|---|---|
| Mechanical Life | 500,000 operations |
| Electrical Life (AC Load) | 6,000 operations |
| Electrical Life (DC Load) | 10,000 operations |
| Contact Material | AgSnO₂ |
| Contact Resistance | ≤2mΩ |
High mechanical durability ensures stability during frequent long-term operation; stable electrical life greatly reduces maintenance and replacement frequency; AgSnO₂ contacts provide excellent resistance to arc erosion and welding, ensuring reliable long-term contact.
Flexible Control and Installation
The FH30L-90 Series adopts a magnetic latching structure. The coil only needs a pulse trigger to complete state switching, after which the magnetic circuit maintains the contact state without continuous power. This brings two direct benefits: first, it reduces the continuous power consumption of the control circuit; second, the contact state is not lost after power failure.
The series offers multiple coil options to meet different driving circuit requirements:
Standard Single Coil
| Nominal Voltage |
Closing Voltage VDC |
Opening Voltage VDC |
Rated Current (±10%) |
Coil Resistance (±10%) | Nominal Power | Max Voltage |
|---|---|---|---|---|---|---|
| DC 6V | ≤4.50 | ≤4.50 | 0.5A | 12Ω | 3.0W | DC 9V |
| DC 9V | ≤6.75 | ≤6.75 | 0.33A | 27Ω | DC 13.5V | |
| DC 12V | ≤9.00 | ≤9.00 | 0.25A | 48Ω | DC 18V | |
| DC 24V | ≤18.00 | ≤18.00 | 0.13A | 192Ω | DC 36V |
Standard Double coils
| Nominal Voltage |
Closing Voltage VDC |
Opening Voltage VDC |
Rated Current (±10%) |
Coil Resistance (±10%) | Nominal Power | Max Voltage |
|---|---|---|---|---|---|---|
| DC 6V | ≤4.50 | ≤4.50 | 1.0/1.0A | 6/6Ω | 6.0W | DC 9V |
| DC 9V | ≤6.75 | ≤6.75 | 0.67/0.67A | 13.5/13.5Ω | DC 13.5V | |
| DC 12V | ≤9.00 | ≤9.00 | 0.5/0.5A | 24/24Ω | DC 18V | |
| DC 24V | ≤18.00 | ≤18.00 | 0.25/0.25A | 96/96Ω | DC 36V |
Sensitive Single Coil
| Nominal Voltage |
Closing Voltage VDC |
Opening Voltage VDC |
Rated Current (±10%) |
Coil Resistance (±10%) | Nominal Power | Max Voltage |
|---|---|---|---|---|---|---|
| DC 6V | ≤4.50 | ≤4.50 | 0.25A | 24Ω | 1.5W | DC 9V |
| DC 9V | ≤6.75 | ≤6.75 | 0.17A | 54Ω | DC 13.5V | |
| DC 12V | ≤9.00 | ≤9.00 | 0.125A | 96Ω | DC 18V | |
| DC 24V | ≤18.00 | ≤18.00 | 0.06A | 384Ω | DC 36V |
Sensitive Double Coil
| Nominal Voltage |
Closing Voltage VDC |
Opening Voltage VDC |
Rated Current (±10%) |
Coil Resistance (±10%) | Nominal Power | Max Voltage |
|---|---|---|---|---|---|---|
| DC 6V | ≤4.50 | ≤4.50 | 0.5/0.5A | 12/12Ω | 3.0W | DC 9V |
| DC 9V | ≤6.75 | ≤6.75 | 0.33/0.33A | 27/27Ω | DC 13.5V | |
| DC 12V | ≤9.00 | ≤9.00 | 0.25/0.25A | 48/48Ω | DC 18V | |
| DC 24V | ≤18.00 | ≤18.00 | 0.125/0.125A | 192/192Ω | DC 36V |
The sensitive single coil consumes as low as 1.5W, making it energy-efficient. Both single-coil and double-coil structures are available to match different driving circuits. Some models can also be equipped with a manual control switch for debugging, maintenance, or emergency operation. The minimum product size is 39.0×15.0×30.2mm, suitable for PCB mounting and easy to arrange in charging pile control boards, smart home modules, or industrial power boards.
Robust Structure and Wide Environmental Adaptability
Two structure options are available: Flux Proofed and Plastic Sealed. The flux-proofed type is suitable for clean environments; for industrial environments containing H₂S, SO₂, NO₂, dust, and other pollutants, the plastic-sealed type is recommended. The plastic-sealed type does not have a manual control switch; if a manual switch is required, only the flux-proofed type can be selected.
| Item | Parameter |
|---|---|
| Insulation Resistance | >1000MΩ |
| Dielectric Strength Between Coil and Contacts | 4000VAC |
| Operating Temperature Range | -40℃ ~ +85℃ |
| Humidity Range | 5%~85% |
| Contact Form | 1A (1 Form A) / 1B (1 Form B) |
| Coil Specification | DC 6V / 9V / 12V / 24V |
| Max Voltage | DC 36V |
The strong insulation performance effectively prevents breakdown and ensures the safety of operators and equipment. The wide temperature range allows stable operation in both severe cold and heat.
Typical Applications
With 90A switching capability, low-power driving, and high insulation design, the FH30L-90 Series is widely used in:
- EV AC Charging Piles: As the main power control switch, it handles the on/off and state retention of the charging circuit, serving as the core execution unit for safe and reliable charging.
- Smart Homes and Smart Buildings: Used for remote power control and switching of central air conditioning, high-power electric heating, smart lighting, and other systems.
- Industrial Automation and Power Management: Achieves efficient circuit on/off and energy scheduling in UPS, energy storage systems (ESS), and distribution cabinets.
- Commercial Appliances: Suitable for high-current control of high-power coffee machines, baking equipment, water pumps, and other commercial appliances.
In these applications, the relay mainly performs power control, main circuit switching, and state retention, providing stable and reliable current control solutions for the system.
Product Series and Selection Guide
The series mainly includes two models:
- FH30L-90: Designed for AC loads, ideal for charging piles and smart home applications.
- FH30LD-90: Optimized for DC loads, suitable for photovoltaic systems, DC charging modules, and other scenarios.
Frequently Asked Questions
Q1: What is the FH30L-90 Series?
The FH30L-90 Series is a new energy relay developed by Fanhar for high-power switching applications. It includes the AC load type FH30L-90 and the DC load type FH30LD-90. The product features 90A contact switching capability, low-power magnetic latching drive, and high insulation design, mainly used in EV AC charging piles, smart homes and smart buildings, industrial automation, and power management.
Q2: What is the difference between FH30L-90 and FH30LD-90?
Both adopt the same platform design approach. The main difference is the load type: FH30L-90 is for AC loads, capable of switching 90A 277VAC with a maximum switching capacity of 22500VA; FH30LD-90 is for DC loads, capable of switching 90A 60VDC with a maximum switching capacity of 5400W. The choice mainly depends on whether the main circuit is AC or DC.
Q3: What is the insulation performance of the FH30L-90 Series?
The series has an insulation resistance exceeding 1000MΩ and a dielectric strength between coil and contacts of 4000VAC, effectively improving electrical isolation and reducing breakdown risk. Two structure options are available: flux-proofed and plastic-sealed, the latter being suitable for industrial environments containing H₂S, SO₂, and other pollutants.
Q4: What is the operating temperature range of the FH30L-90 Series?
The operating temperature range is -40℃ ~ +85℃, with humidity range 5%~85%, covering most indoor and outdoor industrial and commercial scenarios, suitable for charging piles, smart buildings, industrial power supplies, and other applications.
Q5: What is the life expectancy of the FH30L-90 Series?
Mechanical life reaches 500,000 operations, suitable for frequent operation. Under rated load, electrical life is 6,000 operations for AC loads and up to 10,000 operations for DC loads. Under abnormal conditions, the series can also reliably break short-circuit currents up to 2000A for 300 operations (duration 0.3ms).
About Us
Zhejiang Fanhar Electronics Co., Ltd. is certified to ISO9001 Quality Management System and ISO14001 Environmental Management System, focusing on relay products and technical support services.
For detailed technical documents, sample testing, or customized solutions, please contact us. The FH30L-90 Series can provide a reliable control node for your next-generation high-power product.
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