FEDERAL SIGNAL CORPORATION MicroStat ® Status Indicator Model MSL COMPACT STATUS INDICATOR IN WATER-TIGHT ENCLOSURE • MSL1, MSL2, MSL3 available in 24VAC/DC, 120VAC and 240VAC; MSL4 and MSL5 available in 24VAC/DC and 120VAC • Factory assembled • Small footprint — only 2.2" diameter (55.9 mm) • Vibration-resistant 5.6W wedge lamp • Surface mount and integrated 3/4-inch NPT pipe mount • Type 4X enclosure1 • Indoor Use only • Optional Sound Module, LED Lamp, Pipe Mount Base and Flasher • PLC Compatible • UL and cUL Listed The Federal Signal MicroStat® is a compact, Type 4X status indicator, Type 1 with optional sounder. Ideal for OEM applications, the MicroStat comes pre-assembled as 1-, 2-, 3-, 4-, or 5-high light units. The user selects combinations from five colors; Amber, Blue, Clear, Green and Red. O-rings between each segment provide a water-tight and dust-tight seal. The MSL1, MSL2, MSL3 are available in 24VAC/DC, 120VAC and 240VAC; the MSL4 and MSL5 are available in 24VAC/DC and 120VAC. The base of each light can be surface or pipe mounted (3/4-inch NPT). The lenses lock together and snap apart with a simple twisting motion, allowing for easy lamp changes and quick lens resequencing. A rugged vibration-resistant, thick-filament wedge lamp fills each lens with light, providing excellent optical performance. Wire connections are made through a 2-piece terminal block. The MicroStat is designed to work with PLC outputs including “Triacs”. An optional 100,000-hour LED light source is available in the five colors. This lamp, made of surface mounted LEDs, plugs directly into the same socket as the standard lamp. An optional sound module can be installed in the top position of any MicroStat. The Sound Module Kit (MSS) consists of a slotted grille and board-mounted piezoelectric horn. The sounder plugs directly into the wedge socket. Sounder is optional as one of the 5-units. A pipe mount base, pipes and flashers are also available. See page 16 for a complete list of accessories. Model Description Voltage MSL1 RRANT Y 24VAC/DC, 120VAC, 240VAC 0.2 amps Two status segments 24VAC/DC, 120VAC, 240VAC 0.4 amps MSL3 WA One status segment MSL2 y 5 yr Operating Current Three status segments 24VAC/DC, 120VAC, 240VAC 0.6 amps MSL4 Four status segments 24VAC/DC, 120VAC 0.8 amps MSL5 Five status segments 24VAC/DC, 120VAC 1.0 amps 1 MSL with optional sounder rated NEMA Type 1.

MICROSTAT ® STATUS INDICATOR (MSL) Cap Dimensions — Sound Module Assembly Lamp Socket & Cover Assembly 18.5”/444.9 mm Wedge-Type Lamp #655 9.8”/248 mm 7.8”/197.2 mm Two Phillips-Head Screws Connect Sleeve to Base 16.5”/419.5 mm (Diameter: 2.2”/55.9 mm) 12.5”/317.9 mm Colored Lenses Twist On/Off and “Click” into Place Terminal Block Wiring Diagram Sleeve Printed Circuit Board O-Ring Gasket Base is Designed for Surface or Pipe Mounting 5 4 3 2 1 N 290A3377 SPECIFICATIONS Lamp Life: 7,000 Hours Light Source: Wedge-Type Lamp #655 Operating Temperature: 32°F to 104°F Net Weight: 1-high 0.4 lbs. 2-high...