FH66NE Series High Current New Energy Relay | 100A & 160A Relay for Solar Inverters and Industrial Control

Content

1 High Insulation Design for Improved Electrical Safety
2 Reliable Performance in Demanding Industrial Environments
3 Multiple Coil Voltage Options for Flexible System Design
4 Compact Platform Design for Easier Product Upgrades
5 Typical Applications
6 How to Select FH66NE100 or FH66NE160
7 Frequently asked questions

As renewable energy systems and industrial automation continue to evolve toward higher power density and greater efficiency, New Energy Relays are expected to deliver not only reliable switching performance but also excellent current carrying capability, high electrical insulation and long-term operational stability.

Developed to meet these demanding requirements, the Fanhar FH66NE Series High Current New Energy Relay is specifically designed for solar inverters, inverter pre-charge circuits and industrial control equipment. The series currently includes two models—FH66NE100 and FH66NE160—offering continuous carrying current ratings of 100A and 160A, respectively.

Both models are built on the same platform, sharing identical overall dimensions, mounting configuration, coil options and insulation performance. This unified platform design enables equipment manufacturers to select the appropriate current rating without redesigning the installation structure, simplifying product development while improving platform compatibility for future upgrades.

The FH66NE Series has been successfully adopted in volume production across multiple renewable energy and industrial control projects, demonstrating its reliability in demanding power switching applications.

FH66NE 100/160

High Insulation Design for Improved Electrical Safety

Electrical insulation is a critical requirement for renewable energy equipment operating under high-voltage conditions. To ensure reliable isolation and operational safety, the FH66NE Series incorporates a high-insulation design suitable for demanding power control applications.

The relay features a 4.0 mm contact gap, a dielectric strength of 2500 VAC between open contacts, and 5000 VAC between the coil and contacts. In addition, the relay provides an initial insulation resistance of 1000 MΩ at 500 VDC and adopts Class F insulation, helping improve electrical isolation and system reliability during long-term operation.

These electrical characteristics enable the FH66NE Series to meet the insulation requirements of solar inverters, inverter pre-charge circuits and industrial control systems, providing dependable protection for high-voltage power switching applications.

FH66NE 100/160 performance data

Reliable Performance in Demanding Industrial Environments

In addition to its electrical performance, the FH66NE Series is designed to deliver long-term reliability under demanding operating conditions. The relay is suitable for applications where stable performance is essential, even in environments subject to temperature variations, vibration and mechanical stress.

The FH66NE Series operates over a wide ambient temperature range of -40°C to +85°C, making it suitable for renewable energy systems and industrial equipment deployed in diverse climates. It also offers a mechanical life of up to 1,000,000 operations and an electrical life of 30,000 operations under specified test conditions (40A ON / 40A OFF, 277VAC resistive load), ensuring dependable performance throughout the product's service life.

To further enhance durability, the relay is designed to withstand vibration and mechanical shock commonly encountered in industrial applications. These characteristics make the FH66NE Series a reliable choice for equipment requiring stable and continuous power switching over extended operating periods.

FH66NE 100/160 Mechanical Life & Environmental Performance

Multiple Coil Voltage Options for Flexible System Design

Different control systems require different coil voltage configurations. To simplify system integration, the FH66NE Series is available with multiple DC coil voltage options, including 6VDC, 9VDC, 12VDC, 24VDC and 48VDC.

Each coil option is designed with a rated power consumption of 3.2W, allowing engineers to select the most suitable control voltage without changing the relay platform. The standardized coil design not only improves compatibility with various control circuits but also simplifies product development for manufacturers using multiple voltage platforms.

With a common relay structure across all coil options, the FH66NE Series helps reduce design complexity while supporting flexible system configurations.

FH66NE 100/160 Coil Specification

Compact Platform Design for Easier Product Upgrades

The FH66NE100 and FH66NE160 share the same platform design, making it easier for manufacturers to develop product families with different current ratings.

Both models feature identical external dimensions of 45 × 40 × 43 mm, along with the same mounting configuration, terminal layout, insulation performance and available coil specifications. The primary difference between the two models is their continuous carrying current capability.

This common platform allows equipment manufacturers to upgrade from 100A to 160A without redesigning the PCB layout or mechanical installation. As a result, development cycles can be shortened, engineering costs reduced and product standardization improved.

For manufacturers seeking scalable solutions across multiple power ratings, the FH66NE Series provides an efficient and practical platform.

fh66ne-100 Outline Dimension

fh66ne-160 Outline Dimension

Typical Applications

Designed for high-current power switching applications, the FH66NE Series is widely used in renewable energy and industrial control systems where reliable switching performance and high current carrying capability are required.

Typical applications include:

Within these systems, the relay is commonly used for main power switching, pre-charge circuit control and other high-current switching functions, helping improve system reliability and operational safety.

Thanks to its high insulation performance, compact platform design and wide operating temperature range, the FH66NE Series is well suited for demanding power control applications in modern energy and industrial equipment.

How to Select FH66NE100 or FH66NE160

Since the FH66NE100 and FH66NE160 are developed on the same platform, selecting the appropriate model mainly depends on the required continuous carrying current of the application.

The FH66NE100 is recommended for systems requiring a continuous carrying current of up to 100A, making it suitable for standard photovoltaic inverters and industrial control equipment.

For applications requiring higher current capacity, such as high-power solar inverters and energy storage systems, the FH66NE160 provides an increased continuous carrying current of 160A while maintaining the same installation dimensions and electrical interface.

Because both models share the same mechanical platform, manufacturers can easily upgrade product performance without redesigning the equipment structure. This platform consistency simplifies product development, shortens design cycles and supports future product expansion.

Frequently asked questions

Q1: What is the FH66NE Series High Current New Energy Relay?

The FH66NE Series is a high current electromagnetic New Energy Relay developed by Fanhar Electronics for renewable energy and industrial control applications. The series currently includes FH66NE100 and FH66NE160, providing 100A and 160A continuous carrying current options while maintaining the same platform design. It is primarily designed for solar inverters, inverter pre-charge circuits and industrial control equipment.

Q2: What contact configuration does the FH66NE Series use?

The FH66NE Series features a 1 Form A (SPST-NO) contact configuration with AgSnO₂ contact material. The relay provides a 40A rated switching capability, making it suitable for power control applications requiring dependable switching performance.

Q3:What are the mechanical and electrical life ratings?

Under the specified test conditions, the FH66NE Series provides:

Mechanical life: Up to 1,000,000 operations
Electrical life: Up to 30,000 operations (40A ON / 40A OFF, 277VAC resistive load)

These ratings demonstrate the relay's ability to provide reliable long-term performance in demanding power control applications.

Q4: Can FH66NE100 and FH66NE160 be directly substituted?

Since both models share the same mechanical platform, installation dimensions, terminal layout and coil specifications, selection should be based primarily on the required continuous carrying current.

For applications requiring higher current capacity, FH66NE160 is the recommended choice. For systems designed around a 100A current rating, FH66NE100 provides the appropriate solution.

Q5: What certifications does the FH66NE Series have?

According to the product specification, the FH66NE Series has obtained UL/cUL, TÜV and CQC certifications.

These certifications demonstrate that the relay meets recognized safety requirements and is suitable for industrial power control and renewable energy applications requiring internationally accepted approvals.