Federal Signal MSL1-120G - MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Green
Federal Signal

MSL1-120G

Alternate Item Number: msl-microstat

UPC: 782979201731


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Overview

The Federal Signal MSL1-120G MicroStat 1‑High green incandescent status indicator is engineered for reliable, high‑visibility status signaling in industrial control panels and equipment. With a 120 VAC voltage rating, it seamlessly integrates with standard AC power supplies, providing consistent illumination under typical operating conditions. The green LED offers a clear, universally recognized visual cue that can be easily distinguished from other indicator colors, reducing operator confusion and enhancing safety. UL and cUL certification certify that the product meets stringent safety and performance standards, giving you confidence in its reliability and compliance with regulatory requirements. The 1‑High size ensures a compact footprint that fits standard panel openings, while the durable construction protects against vibration, dust, and temperature extremes commonly encountered in industrial environments. Whether used to indicate power status, system health, or fault conditions, the MicroStat indicator delivers crisp, steady light that is visible in both bright and dim settings. Its simple, plug‑and‑play design minimizes installation time and maintenance, making it an ideal choice for manufacturers, maintenance teams, and end‑users seeking a dependable status indicator that meets demanding industrial specifications. Upgrade your control systems with the Federal Signal MSL1-120G and experience the blend of safety, performance, and visual clarity that only a certified, high‑quality incandescent indicator can provide.
  • UL/cUL certification for safety and compliance
  • 120 VAC voltage rating for standard AC integration
  • Bright green illumination for clear visual status
  • Compact 1‑High size fits standard panel openings
  • Durable construction withstands vibration, dust, and temperature extremes

Specifications

0.2
A
120
VAC
7,000
HR
7.8 H x 2.2 W x 2.2 D
IN
Amperage
0.2 A
Amperage Rating
0.2 Amp
Application
Indoor
Brand Name
Federal Signal
Color
Green
Connection Type
Plug-and-play design
Depth
2.2 in
Depth
55.88 mm
Diameter
2.2 in (55.9 mm)
Enclosure
Type 4X
Environmental Conditions
32 to 104 DEG F
Flashing Pattern
Steady/Flashing
Height
7.8 in
Height
198.12 mm
Lamp Life
7,000 HR
Lamp Type
Wedge
Lens Color
Green
Lens Material
Polycarbonate
Mounting
3/4-Inch NPT Pipe/Surface;3/4-Inch Pipe,Surface
Operating Temperature
32D to +104DF (0D to +40DC)
Operating Voltage
120VAC
Operating Voltage
120
Series
MicroStat
Size
7.8 H x 2.2 W x 2.2 D IN
Size
1-High
Special Features
Optional Sound Module Model MSS
Standard
UL Listed/cUL Listed
Standard
UL,cUL
Sub Brand
MicroStat
Type
status Indicator
Voltage Rating
120VAC
Width
2.2 in
Width
55.88 mm
Package Dimensions (L x W x H)
13 IN x 4.75 IN x 2.75 IN
Package Dimensions (L x W x H)
33.02 cm x 12.065 cm x 6.985 cm
Package Weight (Imperial)
0.700 L
Package Weight (Metric)
0.318 kg
MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 24VDC/AC, Green

MSL1-024G

MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 24VDC/AC, Green
MicroStat LED Status Indicator 1 High 120VAC 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). 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.

MSL1L-120G

MicroStat LED Status Indicator 1 High 120VAC 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). 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.
MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Blue

MSL1-120B

MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Blue
MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Red

MSL1-120R

MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Red
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 operating voltages for the MicroStat?

The MicroStat status indicator is available in 24VAC/DC or 120VAC versions.

What is the enclosure rating of the MicroStat status indicator?

The MicroStat is a Type 4X status indicator. With an optional sounder, it is rated NEMA Type 1.

How can the MicroStat status indicator be mounted?

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

What is the operating temperature range for the MicroStat?

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

Is the MicroStat status indicator suitable for outdoor use?

No, the MicroStat status indicator is designed for indoor use only.

Is the MicroStat status indicator compatible with PLCs?

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

What is the sound output level of the optional sound module?

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

What type of lamp does the MicroStat use and what is its life?

The MicroStat uses a rugged, vibration-resistant, thick-filament wedge lamp (#655) with a life of 7,000 hours. An optional 50,000-hour LED lamp is also available.

What lens colors are available for the MicroStat status indicator?

The MicroStat is available with Amber, Blue, Clear, Green, and Red lens colors.

Is the clear lens available for all MSL1 voltage options?

No, the MSL1 24VAC/DC model is not offered with a clear lens.

How to Install the MSL1-120G MicroStat™ Status Indicator

This guide provides step-by-step instructions for installing and configuring the MSL1-120G MicroStat™ Status Indicator, ensuring proper mounting, wiring, and initial setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors, Gasket

  1. Unpack and Inspect the Equipment

    Carefully unpack the MSL1-120G unit and inspect it for any damage that may have occurred during transit. If damaged, do not install and file a claim with the carrier.

  2. Mount the Base Unit

    Remove the colored lenses by twisting the bottom lens counter-clockwise until it unlocks. Lift the bottom lens off. Remove the two Phillips head #6 screws to disassemble the sleeve from the base. Mount the base onto a 3/4" NPT pipe or a flat surface using the provided gasket and screws, ensuring it is securely fastened without over-tightening.

  3. Make Electrical Connections

    Feed the control wires through the NPT opening in the base. Connect the wires to the female terminal block plug, ensuring they correspond to the correct lamp positions. Reconnect the terminal block plug to the printed circuit board assembly.

  4. Reassemble the Unit

    Ensure that O-rings are in place on each module. Reattach the sleeve(s) to the base by sliding the printed circuit board into the channels and securing with the screws. Reassemble the colored lenses, ensuring each lens is locked into place.

  5. Test the Installation

    Before applying power, double-check all connections and ensure that the unit is securely mounted. Once verified, apply power and test the MicroStat™ to ensure it operates correctly.

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.