FF BIS-411B-LED Bistable Relay for DIN Rail with Manual Control and 160A Inrush Current Protection

The FF BIS-411B-LED is a high-performance bistable relay engineered for reliable lighting control in residential and industrial electrical systems. Designed for standard DIN rail mounting, this device allows for efficient switching of electrical circuits through both remote push-button signals and integrated manual control. It is specifically optimized to handle the high inrush currents typical of modern LED lighting, providing robust protection against surges up to 160A/20ms.

Advantages

The primary advantage of this bistable relay is its specialized relay contact, which is built to withstand the significant current spikes generated by LED drivers and energy-efficient light sources. By incorporating manual control directly on the device, users gain the flexibility to override automated systems during maintenance or testing. The DIN rail mounting design ensures seamless integration into standard electrical distribution boards, while the bistable mechanism ensures that the relay maintains its state without continuous power consumption, contributing to energy efficiency in complex lighting installations.

Suitable for

• Residential lighting control systems
• Industrial facility lighting management
• LED lighting circuits with high inrush current requirements
• Remote switching of electrical loads via push-buttons

When it may not be suitable

This relay is not intended for switching inductive loads that exceed its rated capacity or for applications requiring continuous high-power motor control. It is also not suitable for environments where the ambient temperature or humidity levels fall outside the manufacturer's specified operating range.

Key specifications

• Mounting type: DIN rail (TH-35)
• Inrush current capacity: 160A/20ms
• Control method: Remote push-button and manual override
• Application: LED lighting and general electrical loads

How to use

The device should be installed by a qualified electrician onto a standard DIN rail within an electrical enclosure. Connect the power supply, the load, and the control push-buttons according to the wiring diagram provided with the unit. Once installed, the relay can be toggled by sending a pulse signal from a momentary push-button or by using the manual control button located on the front panel of the device.

What to consider before purchase

• Verify that the total load of your lighting circuit does not exceed the relay's maximum switching capacity.
• Ensure that your electrical panel has sufficient space on the DIN rail for the device.
• Confirm that the control voltage matches your existing push-button circuit.

Usage recommendations: For optimal performance and longevity, ensure all electrical connections are tightened securely and that the device is protected from moisture and dust within a suitable distribution box.