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Home / News / Industry News / FH67NE 200A/270A new energy relay | High-Current 1000VAC Switch for Photovoltaic, Battery Storage & Industrial Equipment
Content
- 1 Product Overview
- 2 Selection Guide: Comparison of 200A and 270A Versions
- 3 Core Technical Advantages
- 4 Core Electrical Performance
- 5 Coil Specifications and Energy-Efficient Operation
- 6 Typical Application Scenarios
- 7 Certifications and Quality Assurance
- 8 Conclusion
- 9 Frequently Asked Questions
- 9.0.1 Q1: What are the main differences between the FH67NE 200A and 270A versions?
- 9.0.2 Q2: What practical benefits does the ≥4.0mm contact gap provide?
- 9.0.3 Q3: For which scenarios is the heat sink model recommended?
- 9.0.4 Q4: What is the environmental adaptability of the FH67NE?
- 9.0.5 Q5: Can samples or technical support be provided?
Product Overview
The FH67NE is a high-performance, high-power new energy relay developed by Zhejiang Fanhar Electronics (FANHAR) for photovoltaic new energy and industrial high-load applications. It is available in two contact switching capability options – 200A and 270A – featuring a single set of double-break, normally open contacts with a contact gap of 4.0mm or greater. Utilizing AgSnO₂ as the contact material, the relay can switch up to 220A (200A version) or 275A (270A version) at 1000VAC, with maximum switching capacities of 220,000VA and 275,000VA respectively. With outstanding electrical performance, rigorous safety design, and comprehensive international certifications, the FH67NE has become a core switching component in demanding applications such as PV inverters, energy storage systems, and industrial control equipment.
As global PV installed capacity continues to rise and the energy storage industry expands rapidly, new energy systems impose increasingly stringent requirements on relays in terms of high-current carrying capability, high-voltage safety margins, and long-term reliability. The FH67NE is precisely Fanhar’s flagship new energy relay product developed in response to this industry trend, effectively addressing the urgent market need for high-power, high-safety, and low-energy-consumption relays.
Selection Guide: Comparison of 200A and 270A Versions
The FH67NE series offers two current ratings – 200A and 270A – with the core difference lying in the main terminal structure design, enabling engineers to flexibly choose based on actual load requirements:
| Parameter | FH67NE 200 | FH67NE 270 |
|---|---|---|
| Rated Current (carrying) | 200A | 270A |
| Max. Switching Current | 220A | 275A |
| Max. Switching Capacity | 220,000VA | 275,000VA |
Both versions are identical in contact gap (≥4.0mm), insulation class (Class F), coil parameters, and overall dimensions. Selection should be based primarily on the actual load current and switching capacity requirements of the system.
Core Technical Advantages
Double-Break Structure for High-Voltage Safety
The product features a single set of double-break, normally open contact configuration with a contact gap ≥4.0mm. The double-break design creates two series-breaking arcs during disconnection, effectively enhancing arc extinguishing capability. Combined with the large contact gap of over 4.0mm, it significantly improves electrical isolation performance under high-voltage conditions, ensuring safe disconnection at 1000VAC.
Class F Insulation System for High Temperature and Long Life
The UL insulation system meets Class F requirements, allowing insulation materials to withstand continuous operating temperatures of 155°C. Together with a wide operating temperature range of -40°C to +85°C, the FH67NE maintains stable electrical performance and service life even in high-temperature environments such as outdoor PV power stations and industrial distribution cabinets.
Optional Heat Sink Design for Enhanced Thermal Management
The FH67NE is available with an optional heat sink model, offering significantly better heat dissipation than the standard version. This design is particularly suitable for applications involving sustained high-current conduction or high ambient temperatures, effectively reducing relay temperature rise and extending electrical life.
Environmentally Compliant and Globally Adaptable
The product complies with RoHS environmental directives and has obtained UL, TÜV, and CQC international certifications, providing strong global market access capability.
Core Electrical Performance
Load Capability
The FH67NE has a rated current (carrying) of 200A (270A for the 270A version). Its rated load (resistive) conditions are: Make 55A, Carry rated current, Break 55A. Maximum switching voltage is 1000VAC, maximum switching current is 220A (200A version) / 275A (270A version), and maximum switching capacity is 220,000VA (200A version) / 275,000VA (270A version).
Contact Reliability
Initial contact resistance is ≤1mΩ (tested at 6VDC 20A), ensuring extremely low conduction losses and meeting the strict low-heat requirements of high-current applications.
Insulation and Dielectric Strength
Initial insulation resistance reaches 1000MΩ (tested at 500VDC). Dielectric strength performance is outstanding: 2500VAC/1min between open contacts, and 5000VAC/1min between coil and contacts, providing ample safety margins for the system.
Response Time
Operate time (at nominal voltage) ≤45ms, release time (at nominal voltage) ≤10ms, offering fast and reliable response to meet the rapid switching control demands of PV inverters and other equipment.
Coil Specifications and Energy-Efficient Operation
The FH67NE is available in five coil voltage options: DC 6V, 9V, 12V, 24V, and 48V, with a rated power consumption of only 4W. Detailed parameters for each specification are as follows:
| Rated Voltage | Operate Voltage (VDC) | Release Voltage (VDC) | Rated Current (±10%) | Coil Resistance (±10%) | Nominal Power | Sustaining voltage | Max Voltage |
|---|---|---|---|---|---|---|---|
| DC 6V | ≤4.50 | ≥0.30 | 666.7mA | 9Ω | 4W |
55%～100%Un (Ambient temperature23℃) 55%～60%Un (Ambient temperature85℃) |
DC 7.2V |
| DC 9V | ≤6.75 | ≥0.45 | 444.4mA | 20.3Ω | DC 10.8V | ||
| DC 12V | ≤9.00 | ≥0.60 | 333.3mA | 36Ω | DC 14.4V | ||
| DC 24V | ≤18.00 | ≥1.20 | 166.7mA | 144Ω | DC 28.8V | ||
| DC 48V | ≤36.00 | ≥2.40 | 83.3mA | 576Ω | DC 57.6V |
Operation Notes:.
The coil sustaining voltage is applied 100ms after rated voltage application, with a sustaining voltage range of 55%～100% Un (at 23°C ambient) / 55%～60% Un (at 85°C ambient).
To avoid coil overheating and damage, do not continuously apply voltage exceeding the maximum sustaining voltage.The maximum sustaining voltage refers to the maximum voltage the relay can withstand for a short period.
Typical Application Scenarios
As a core switching element in PV systems, the FH67NE handles safe make/break control on both DC and AC sides. Its 200A/270A high current-carrying capacity easily manages the current demands of high-power PV strings, while the ≥4.0mm contact gap and 5000VAC coil-to-contact withstand voltage provide substantial safety margins for high-voltage applications.
In battery energy storage systems, the FH67NE is used for battery pack charge/discharge control and protection. The low power consumption enabled by its magnetic latching design aligns perfectly with the strict energy efficiency requirements of ESS, while its wide operating temperature range ensures stable operation in outdoor storage cabinets and similar environments.
For high-power industrial equipment load switching, the FH67NE offers a highly reliable on/off control solution. Its excellent vibration and shock resistance, together with a mechanical life of up to 1 million operations, make it capable of handling various harsh industrial field environments.
Certifications and Quality Assurance
The FH67NE series has obtained UL, TÜV, and CQC international certifications and complies with RoHS environmental standards, fully meeting the market access requirements of major global regions.
As a national high-tech enterprise, Fanhar Electronics has been certified under ISO9001 Quality Management System, ISO14001 Environmental Management System, and ISO45001 Occupational Health and Safety Management System. The company invests 5%–8% of annual sales revenue in R&D and has been granted over 40 national utility model and invention patents. A full-process quality control system covering design, raw material procurement, and manufacturing ensures that every FH67NE relay delivers consistent and reliable quality.
Conclusion
The FH67NE high-power new energy relay integrates core advantages including ultra-high current-carrying capacity (200A/270A), double-break safety structure (≥4.0mm gap), Class F insulation system, magnetic latching low-power design, and optional heat sink enhancement. As Fanhar’s flagship product for the new energy and industrial high-load markets, it has passed UL, TÜV, and CQC international certifications and complies with RoHS requirements. It is already widely used in PV inverters, energy storage systems, and industrial control equipment. Whether you are designing a high-power PV inverter or developing a high-reliability energy storage system, the FH67NE is a trustworthy key component choice.
Frequently Asked Questions
Q1: What are the main differences between the FH67NE 200A and 270A versions?
The core differences lie in current-carrying capacity and main terminal structure. The 270A version has a maximum switching current of 275A and maximum switching capacity of 275,000VA, with a slotted main terminal bottom; the 200A version has a maximum switching current of 220A and maximum switching capacity of 220,000VA, with a non-slotted main terminal bottom. Both versions share the same contact gap, insulation class, coil parameters, and outline dimensions.
Q2: What practical benefits does the ≥4.0mm contact gap provide?
The large contact gap of over 4.0mm significantly improves the relay’s electrical isolation capability: ① reduces arc restrike risk, enhancing disconnection reliability; ② meets the strict clearance requirements of high-voltage applications; ③ combined with the double-break structure, forms a dual safety barrier ensuring safe operation at 1000VAC.
Q3: For which scenarios is the heat sink model recommended?
The heat sink model is particularly recommended for: ① outdoor PV power stations with high ambient temperatures; ② applications requiring prolonged high-current conduction; ③ high-reliability systems with strict temperature rise limits. Its heat dissipation is significantly better than the standard version, effectively reducing relay temperature rise and extending electrical life. However, note that the heat sink is electrically live, so a 10mm safety clearance must be maintained during installation.
Q4: What is the environmental adaptability of the FH67NE?
Operating temperature range -40°C～85°C, humidity range 5%～85%. Vibration resistance 10Hz～55Hz/1.0mm DA, shock resistance functional 98m/s² (10g) and destructive 980m/s² (100g), meeting the requirements of various harsh environments such as outdoor PV stations and industrial distribution.
Q5: Can samples or technical support be provided?
Fanhar Electronics supports sample provision and technical selection assistance based on customer requirements. For special customization needs (structural, parameter adjustments, etc.), please contact the Fanhar sales or technical support team for further assistance. This product introduction is for reference only. Specifications are subject to change without notice. For the latest technical documentation, please contact the Fanhar sales team.
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