The Bosch FLM-420-RHV-S high-voltage relay surface module is intended for controlling external devices, such as smoke extraction dampers and fans, on an LSN local network. It is compatible with the FPA-5000 and FPA-1200 fire alarm panels.

• Switching relay type: C
• Input voltage: 15 VDC - 33 VDC
• Maximum current consumption: 17.15 mA
• Maximum contact load: 10 A at 120 VAC, 10 A at 230 VAC, 10 A at 24 VDC, 6 A at 30 VDC
• Maximum NC contact delay time: 9 ms
• Operating temperature: -20°C to +50°C
• Storage temperature: -25°C to +85°C
• Enclosure protection rating: IP 54
• Built-in short-circuit isolators and LED indicators