ELTAKO FMZ14 RS485 Bus Multifunction Switching Actuator, 1 NO, 16 A, 250 V AC, DIN Rail, 1 Module 30014009

In building automation systems, the ELTAKO FMZ14 RS485 Bus Multifunction Switching Actuator provides reliable switching of lighting and other electrical loads via the Eltako-RS485 bus. It is installed on a DIN rail in distribution boards and controlled by a central building controller or PC tool.

Key specifications

• Function: Multifunction switching actuator
• Bus system: Eltako-RS485 bus
• Contact configuration: 1 NO (normally open)
• Rated switching current: 16 A
• Rated switching voltage: 250 V AC
• Maximum incandescent lamp load: 2000 W
• Maximum LED lamp load: 600 W
• Control voltage: 24 V DC via bus
• Mounting: DIN rail, 1 module unit (18 mm)
• Standby power consumption: 0.5 W
• Protection class: IP20
• Ambient temperature range: -20 °C to +50 °C
• Terminal type: Screw terminals
• Short-circuit current rating: 3000 A
• Switching frequency: Max. 600 operations/hour
• Minimum switching capacity: 100 mA
• Galvanic isolation: Yes (control/switching circuit)
• Configuration: PC tool or rotary switch
• Housing material: Thermoplastic

Why choose it

The FMZ14 offers a compact, bus-controlled switching solution for modern building automation. Its multifunction capability allows adaptation to various switching tasks, while the RS485 bus enables central control and monitoring. The actuator handles both high inrush loads like incandescent lamps and energy-efficient LED lighting.

Ideal use cases

• Switching lighting circuits in residential and commercial buildings
• Controlling electrical loads via a central building management system
• Integration into Eltako RS485 bus installations for distributed switching

Good to know

The device is designed for DIN rail mounting and occupies only one module width. Configuration is possible via PC tool or a rotary switch on the device. The galvanic isolation between control and switching circuits enhances system safety.