Federal Signal MSL3L-120RAG - MicroStat LED Status Indicator 3 High 120VAC Red/Amber/Green- Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint, only 2.2" diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Type 4X enclosure (MSL with optional sounder rated NEMA Type 1). Indoor use only. 50,000 hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. PLC compatible. UL and cUL Listed.
Federal Signal

MSL3L-120RAG

Alternate Item Number: msl-led

UPC: 782979225683


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Overview

The Federal Signal MSL3L-120RAG MicroStat LED Status Indicator is a factory-assembled, 120VAC-rated visual signaling device designed for industrial control systems requiring high-visibility status indication. This 3-high LED indicator delivers three distinct color outputs—Red, Amber, and Green—enabling clear differentiation of system states (e.g., fault, warning, normal operation) at a glance. Its compact 2.2-inch diameter (55.9 mm) footprint allows installation in tight control panels, junction boxes, or machinery enclosures where space is constrained. The indicator supports both surface-mount and 3/4-inch NPT pipe-mount configurations, providing installation flexibility for diverse industrial environments. Housed in a NEMA Type 4X enclosure, it resists dust, dirt, and limited water spray, making it suitable for indoor applications in harsh or washdown-prone areas. The 50,000-hour LED lamp life ensures long-term reliability with minimal maintenance, reducing downtime and replacement costs. Certified UL and cUL listed for safety compliance, the MSL3L-120RAG integrates seamlessly with programmable logic controllers (PLC) via its PLC-compatible design. Optional accessories—including the MSS sound module, pipe-mount base, and flasher—enable multi-modal alerting when auditory signals are required. Typical applications include process control panels, HVAC systems, power distribution units, and safety interlocks where immediate visual feedback is critical. The indicator’s versatility, durability, and compliance with industrial standards make it a cost-effective solution for status monitoring in modern facilities.
  • 120VAC operation with 3-color (Red/Amber/Green) LED output for clear status indication
  • Compact 2.2-inch diameter (55.9 mm) footprint for tight-space installations
  • Surface-mount and 3/4-inch NPT pipe-mount options for flexible enclosure integration
  • NEMA Type 4X enclosure rated for indoor use in harsh or washdown environments
  • 50,000-hour LED lamp life for long-term reliability and low maintenance
  • PLC-compatible with optional MSS sound module, pipe-mount base, and flasher for multi-modal alerts
  • UL and cUL listed for safety compliance in industrial control systems

Specifications

0.6
A
12.5 H x 2.2 W x 2.2 D
IN
120
VAC
50,000
HR
Amperage
0.6 A
Amperage Rating
0.6 AMP
Application
Indoor
Brand Name
Federal Signal
Depth
2.2 in
Depth
55.88 mm
Enclosure
Type 4X
Environmental Conditions
32 to 104 DEG F
Height
12.5 in
Height
317.5 mm
Lamp Life
50,000 HR
Lamp Type
LED
Lens Color
Red/Amber/Green
Lens Color
Amber;Green;Red
Lens Material
Polycarbonate
Mounting
3/4-Inch NPT Pipe/Surface
Operating Voltage
120VAC
Operating Voltage
120
Size
12.5 H x 2.2 W x 2.2 D IN
Special Features
Optional Sound Module Model MSS
Standard
UL Listed/cUL Listed
Sub Brand
MicroStat
Type
status Indicator
Voltage Rating
120VAC
Width
2.2 in
Width
55.88 mm
Package Dimensions (L x W x H)
20.25 IN x 4.25 IN x 4.25 IN
Package Dimensions (L x W x H)
51.435 cm x 10.795 cm x 10.795 cm
Package Weight (Imperial)
1.300 L
Package Weight (Metric)
0.590 kg
Microstat Status indicator, 3-High, 120VAC, Sounder, Flashing, Blue/Red - Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint – only 2.2 inch diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Five lens colors: Amber, Blue, Clear, Green and Red. Optional 50,000-hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. Sounder produces 93-95 dBa at 1m (83-85 dBa at 10ft). PLC compatible. Indoor use only. Type 4X enclosure (With optional sounder rated NEMA Type 1). UL and cUL Listed.

MSL3-120BR-MSF

Microstat Status indicator, 3-High, 120VAC, Sounder, Flashing, Blue/Red - Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint – only 2.2 inch diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Five lens colors: Amber, Blue, Clear, Green and Red. Optional 50,000-hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. Sounder produces 93-95 dBa at 1m (83-85 dBa at 10ft). PLC compatible. Indoor use only. Type 4X enclosure (With optional sounder rated NEMA Type 1). UL and cUL Listed.
Microstat Status indicator, 4-High, 120VAC, Sounder, Flashing, Blue/Amber/Red - Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint – only 2.2 inch diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Five lens colors: Amber, Blue, Clear, Green and Red. Optional 50,000-hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. Sounder produces 93-95 dBa at 1m (83-85 dBa at 10ft). PLC compatible. Indoor use only. Type 4X enclosure (With optional sounder rated NEMA Type 1). UL and cUL Listed.

MSL4-120BAR-MSF

Microstat Status indicator, 4-High, 120VAC, Sounder, Flashing, Blue/Amber/Red - Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint – only 2.2 inch diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Five lens colors: Amber, Blue, Clear, Green and Red. Optional 50,000-hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. Sounder produces 93-95 dBa at 1m (83-85 dBa at 10ft). PLC compatible. Indoor use only. Type 4X enclosure (With optional sounder rated NEMA Type 1). UL and cUL Listed.
MicroStat LED Status Indicator 5 High 120VAC - Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint, only 2.2" diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Type 4X enclosure (MSL with optional sounder rated NEMA Type 1). Five lens colors: Amber, Blue, Clear, Green and Red. Indoor use only. 50,000 hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. PLC compatible. UL and cUL Listed.

MSL5L-120

MicroStat LED Status Indicator 5 High 120VAC - Available in 24VAC/DC or 120VAC. Factory assembled. Small footprint, only 2.2" diameter (55.9 mm). Surface mount and integrated 3/4-inch NPT pipe mount. Type 4X enclosure (MSL with optional sounder rated NEMA Type 1). Five lens colors: Amber, Blue, Clear, Green and Red. Indoor use only. 50,000 hour LED lamp. Optional sound module (MSS), pipe mount base and flasher. PLC compatible. UL and cUL Listed.
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MSL3L-024RAG

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MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Clear, Green

MSL2-120CG

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Clear, Green
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Blue

MSL2-120AB

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Blue
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Clear, Red

MSL2-120CR

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Clear, Red
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Red

MSL2-120AR

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Red
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Green

MSL2-120AG

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Green
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Blue, Clear

MSL2-120BC

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Blue, Clear
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Clear

MSL2-120AC

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Amber, Clear
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Blue, Green

MSL2-120BG

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 120VAC, Blue, Green

Frequently Asked Questions

What are the available voltage options for the MicroStat?

The MicroStat is available in 24VAC/DC or 120VAC configurations.

What is the diameter of the MicroStat status indicator?

The MicroStat status indicator has a small footprint with a diameter of 2.2 inches (55.9 mm).

What are the mounting options for the MicroStat?

The MicroStat can be surface mounted or integrated with a 3/4-inch NPT pipe mount.

What lens colors are available for the MicroStat?

Five lens colors are available: Amber, Blue, Clear, Green, and Red.

Is the MicroStat compatible with PLC systems?

Yes, the MicroStat is PLC compatible and designed to work with PLC outputs, including Triacs.

What is the enclosure type rating for the MicroStat?

The MicroStat features a Type 4X enclosure, or Type 1 when an optional sounder is installed.

What is the operating temperature range for the device?

The MicroStat operates within a temperature range of 32°F to 104°F (0°C to 40°C).

What is the standard lamp life for the MicroStat?

The standard wedge-type lamp #655 has a lamp life of 7,000 hours.

Can an optional sound module be added to the MicroStat?

Yes, an optional sound module (MSS) can be installed in the top position of any MicroStat unit.

How loud is the optional sound module?

The optional sounder produces 93-95 dBa at 1 meter (83-85 dBa at 10 feet).

Frequently Asked Questions about Federal Signal

What certifications and standards do Federal Signal products comply with?

Federal Signal products are certified across multiple international standards, including UL (Underwriters Laboratories) in the USA, CSA (Canadian Standards Association), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia and New Zealand). Their products meet rigorous safety and performance standards for industrial environments, with specific compliance in electrical equipment enclosures, functional safety, and environmental protection ratings.

What is Federal Signal's warranty policy?

Federal Signal offers a comprehensive limited warranty covering most products for 1-5 years from the date of delivery, with specific terms varying by product category. Mechanical sirens, beacons, speakers, and sounders typically receive 5-year parts and labor coverage, while electronic sirens and controllers generally have 2-year warranties. All warranties require return to the factory for service, and on-site services are not included. Certain components like domes, lenses, lamps, and batteries are specifically excluded from warranty coverage.

What industries and applications are Federal Signal products used for?

Federal Signal products are used across multiple critical industrial and municipal sectors for notification, communication, and safety systems. Their product lines cover essential applications including fire alarm systems, public address and telephony, outdoor warning systems, visual and audible signals, and emergency communication networks. Key industries served include manufacturing, municipal emergency services, industrial facilities, and infrastructure environments where clear, reliable communication and safety signaling are paramount.

What technical support does Federal Signal offer?

Federal Signal offers comprehensive technical support through their dedicated [email protected] email and direct phone line at +1 708.534.4756. Their support covers a wide range of notification and communication solutions, including technical assistance for products in public address, telephony, fire alarm, visual and audible signals, outdoor warning systems, and intercoms.

What are the main product lines offered by Federal Signal?

Federal Signal offers comprehensive notification and communication solutions across multiple product lines, including Visual Signals, Audible Signals, Telephony, Intercoms, Fire Alarm, Outdoor Warning Systems, Public Address, and Initiating Systems. Their product range is designed to provide clear communications and critical process notifications that enhance safety and compliance in industrial and public environments.

What are the key features of Federal Signal products?

Federal Signal products are comprehensive notification solutions designed to enhance safety and communication across industrial environments. Their key features include visual and audible signals, fire alarm systems, outdoor warning systems, public address capabilities, telephony, and intercoms. These products provide critical process notifications, ensure safety compliance, and offer advanced technologies like secure encrypted communication, cloud-based control systems, and customizable emergency response interfaces.

What environmental ratings do Federal Signal products have?

Federal Signal products offer robust environmental ratings across multiple standards, including UL 508A, CSA, NEMA, and IEC 60529. Their enclosures are rated for Type 1, 2, 3, 4, 4X, 12, and 13 environments, with IP66 protection, and can operate in temperatures ranging from -40°F to 266°F. These ratings ensure superior protection against dust, water, corrosion, and extreme conditions for indoor and outdoor industrial applications.

What accessories are available for Federal Signal products?

Federal Signal offers multiple accessories for their signaling products, including coupling kits, cable entry adapters, indicator rings, legend plates, and mounting brackets. Key accessories include E-Box endcap kits with M20 and M25 openings, U-Brackets for dual configurations, and color-coded indicator rings in black, blue, green, magenta, red, and yellow. Additional options like adapters for NPT connections and specialized mounting hardware are also available for their Global Series signaling platforms.

What communication protocols do Federal Signal products support?

Federal Signal supports multiple industrial communication protocols including PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, and Modbus RTU. These protocols enable flexible network integration across various industrial automation environments, supporting both traditional fieldbuses and modern Ethernet-based communication standards.

How are Federal Signal products typically installed?

Federal Signal products are typically installed using professional mounting configurations that include wall brackets, base stations, and specialized mounting hardware. Depending on the specific product line—such as outdoor warning systems, visual signals, or audible signals—installation involves precise mounting options like wall-mount antenna brackets, base station radio packages, and modular component assemblies. Each product configuration includes specific mounting accessories like endcaps, adapters, and terminal blocks to ensure secure and compliant installation in industrial and safety-critical environments.