F&F BIS-412 24V Group Impulse Relay 24VAC/DC 16A for TH35 DIN Rail

The F&F BIS-412 24V is a group impulse relay engineered for efficient lighting control in both residential and industrial electrical systems. Operating on a 24VAC/DC supply, this device enables the switching of lighting circuits from multiple locations using momentary push-buttons. Its robust design ensures reliable performance in demanding environments, making it a versatile component for modern automation setups.

Advantages

This impulse relay offers a significant advantage by allowing the control of lighting groups from several independent points, which enhances convenience and energy management. The device is built for seamless integration into standard electrical cabinets, featuring a compact design that mounts directly onto a TH35 DIN rail. Its high load capacity of 16A ensures compatibility with various lighting types, while the 24V operating voltage provides an added layer of safety for control circuits.

Suitable for

• Residential lighting control systems with multiple switches
• Industrial automation and facility management
• Public building lighting management
• Integration into smart home or building automation panels

When it may not be suitable

This device is not intended for use in high-voltage control circuits exceeding its specified 24V rating. It is also not suitable for applications requiring dimming functionality or complex programmable logic, as it operates strictly as a bistable switching relay.

Key specifications

• Supply voltage: 24V AC/DC
• Maximum load current: 16A
• Mounting type: TH35 DIN rail
• Control method: Momentary push-buttons
• Function: Group impulse switching

How to use

The relay is installed by snapping it onto a standard TH35 DIN rail within an electrical distribution board. Connect the 24V power supply to the designated terminals and wire the momentary push-buttons in parallel to the control input. Once energized, each press of a connected push-button toggles the state of the relay, switching the connected lighting load on or off.

What to consider before purchase

• Ensure your control circuit voltage matches the 24V specification
• Verify that the total load current of the lighting group does not exceed 16A
• Confirm that you have sufficient space on your DIN rail for installation
• Check that your wiring setup supports momentary push-button configuration

Usage recommendations

For optimal longevity and safety, ensure all electrical connections are tightened securely and the device is protected from moisture and extreme temperatures within a suitable enclosure.