Silent Knight HFS-MR-RC

The Silent Knight HFS-MR is an addressable relay module that lets an IntelliKnight 5600 series fire alarm control panel switch discrete contacts by code command, typically to operate door holders, dampers, or other auxiliary equipment during an alarm condition. It reports its own address on the signaling line circuit and contains two isolated sets of Form C contacts that operate independently of each other.

Key Features

• Two isolated Form C relay contact sets, switchable independently by control-panel command
• Addressable device polled directly on the SLC loop, no separate zone wiring needed
• Mounts directly to a standard 4-inch square electrical box

Technical Specifications

• Operating voltage: 15 to 32 VDC
• Relay contact rating: 2A at 30 VDC (coded applications); 0.3A at 125 VAC for inductive loads (PF=.35)
• Average operating current: 230 microamps (direct poll), 255 microamps (group poll); 6.5 mA max with LED on
• Operating temperature: 32°F to 120°F (0°C to 49°C); humidity 10-93% non-condensing
• Dimensions: 4.5 in H x 4 in W x 1.25 in D
• Compatibility: Silent Knight IntelliKnight 5600 series fire alarm control panels

Certifications

• UL listed addressable relay module, part of the Silent Knight HFS device line