Leading the pack in giving safe and sustainable options for home automation and smart grid systems is Zhejiang Fanhar Electronics Co., Ltd. The FH31L and FH31L-100 latching relays are particularly notable among their offerings given their great efficiency and reliability in regulating energy and offering steady operation.

What Are Electric Latching Relays?

Electric latching relays are special switches that maintain their state (on or off) without the need for continuous power. They are indispensable in smart grids, frequently used in composite switches, smart meters, smart homes, and new energy applications.

The FH31L and FH31L-100 Relays: A Overview and Comparative

FH31L Characteristics

1. Switching Capability: The FH31L can control up to 80A and is designed for medium-to high-power equipment.
2. Coil Control Options: Both single and double coil control setups be offered.
3. Customization: Offers external accessories, such as transformers and manganese copper shunts, to correspond to the requirements of the customer.
4. High Voltage Resistance: A 4KV dielectric voltage between the coil and links ensures safety.
5. Eco-Friendly Design: It is a sustainable choice which complies with RoHS regulations.



FH31L-100 Characteristics

1. Switching Capability: The FH31L-100, built for high-power applications, has a 100A switching ability.
2. Coil Control Options: It gives single and double coil control layouts, exactly like the FH31L.
3. Customization: Provides options for tweaking external accessories to meet specific requirements.
4. High Voltage Resistance: A dielectric voltage over 4KV is used between the coil and connections to more safety.
5. Eco-Friendly Design: In accordance with RoHS codes and environmental sustainability.

Technical Information

The rated load and maximum switching capacity of the two relays differ lightly, but alternately their technical nuances are similar:
Contact Specs: AgSnO2 is the contact material; initial contact resistance is ≤1.0mΩ.
Electrical Performance: Initial insulation resistance 1000MΩ, dielectric strength between open contacts 2000VAC, and between coil and contacts 4000VAC.
Mechanical Performance: Shock resistance 98m/s²(10g), vibration 10Hz~55Hz 1.5mm double amplitude.
Operating Conditions: A temperature range of -40 degrees Celsius to 85 degrees Celsius and a relative humidity of five percent to eighty-five percent.

Situations for Applications

The FH31L and FH31L-100 relays enhance performance and stability in new energy systems, composite switches, smart homes, and smart meters. They're ideal to enhance automation and energy management in modern applications for their reliability.

Important Points

1.Factory State: By routine, relays will placed closed. Before use them, please reset them if needed.
2. Voltage Requirements: Ensure that the rated voltage has been met by the voltage applied across the coil. One to a half of the rated voltage is the actual driving voltage.
3. Prevent Dropping: Prevent dropping the product or exposing it to external force impacts in order to preserve the relays' original performance parameters.

IEC62052-31:2005 is met by both the FH31L and FH31L-100 relays; the FH31L-100 fits the UC3 standard, yet the FH31L serves the UC2 standard.They are known for their superb work and safety, and they provide durability in an array of applications. The FH31L and FH31L-100 will continue to offer solid backing for secure operation of home automation systems and smart grids as technology develops.