MDF-300 Dual Monitor Module The MDF-300(A) Dual Monitor Module is intended for use in intelligent, two-wire systems. It provides two independent twowire initiating device circuits (IDCs) at two separate, consecutive addresses. It is capable of monitoring normally open contact fire alarm and supervisory devices. The module has a single panelcontrolled LED.

Alarm Current: 75mA (max.); 54mA (12V In), 32mA (24V In)
Dimensions: Diameter: 6.4 in. ; Width: 6.04 in. ; Depth: 1.00 in
Mounting: 4-11/16 in. square back box or inside a metal enclosure
Operating Humidity Range: 5-95% RH
Operating Temperature Range: 0 – 50° C (32 — 122° F)
Operating Voltage: Nominal: 12/24 VDC; Minimum: 10 VDC; Maximum: 35 VDC (power limited)
Standby Current: 52mA (max.); 36mA (12V In); 20mA (24V In)
Weight: 9.6 oz. (272 g)
Wiring Gauge: 14-22 AWG

Features

• Photoelectric, integrated low-flow technology (detector head sold separately)
• Air velocity rating from 100 ft/min to 4,000 ft/min
• Adjusts to square and rectangular mounting configurations
• Broad ranges for operating temperature (4°F to 158°F) and humidity (0% to 95% non-condensing)
• Patented tool-free, plug-in sampling tubes
• New cover tamper signal
• Increased wiring space with a new ¾-inch conduit knockout
• Housing has space for mounting a relay module
• Easily accessible code wheels on sensor head (sold separately)
• Clear cover for convenient visual inspection
• UL 268A listed
• Remote testing capability
• Requires com line power only