Federal Signal 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.
Federal Signal

MSL1L-120G

Alternate Item Number: msl-led

UPC: 782979225652


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Overview

The Federal Signal MSL1L-120G MicroStat LED Status Indicator is a compact, 120VAC green visual signaling device designed for industrial monitoring. With a small 2.2-inch (55.9 mm) diameter, it offers a minimal footprint ideal for crowded control panels and equipment. The MSL1L-120G features both surface mount and an integrated 3/4-inch NPT pipe mount for versatile installation options. Its NEMA Type 4X enclosure provides robust protection against dust, water spray, and moderate impact, making it suitable for indoor industrial environments. The long-lasting LED lamp boasts a 50,000-hour lifespan, ensuring extended operational reliability and reducing maintenance requirements. This indicator is PLC compatible, facilitating seamless integration into automated control systems. Available in five lens colors (Amber, Blue, Clear, Green, Red), it can be specified to match specific visual signaling needs. Optional accessories include a sound module (MSS) for audible alerts, a pipe mount base, and a flasher module for enhanced functionality. The Federal Signal MSL1L-120G is UL and cUL Listed, meeting critical safety and performance standards for industrial use. Applications include plant control panels, HVAC systems, and process automation where clear, dependable status indication is paramount.
  • 120VAC green LED status indicator
  • Compact 2.2" (55.9 mm) diameter
  • NEMA Type 4X enclosure for harsh indoor environments
  • Surface mount and integrated 3/4" NPT pipe mount
  • 50,000-hour LED lamp life

Specifications

0.2
A
120
VAC
50,000
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
Surface Mount
Depth
2.2 in
Depth
55.88 mm
Enclosure
Type 4X
Environmental Conditions
32 to 104 DEG F
Height
7.8 in
Height
198.12 mm
Ip Rating
IP66/IP67
Ip Rating
IP4X
Ip Rating
Type 4X
Ip Rating
IP66/IP67 (implied by NEMA 4X)
Lamp Life
50,000 HR
Lamp Type
LED
Lens Color
Green
Lens Material
Polycarbonate
Material
NEMA 4X Enclosure
Mounting
3/4-Inch NPT Pipe/Surface
Mounting Type
Surface mount and 3/4-inch NPT pipe mount
Mounting Type
Surface mount or 3/4-inch NPT pipe mount
Mounting Type
Surface mount, 3/4-inch NPT pipe mount
Mounting Type
Surface Mount
Nema Rating
Type 4X
Operating Voltage
120VAC
Operating Voltage
120
Series
MSL
Series
MicroStat LED Status Indicator
Size
7.8 H x 2.2 W x 2.2 D IN
Size
2.2" diameter (55.9 mm)
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)
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
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MSL1-120G

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MicroStat LED Status Indicator 1 High 24VAC/DC 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-024G

MicroStat LED Status Indicator 1 High 24VAC/DC 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.
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USIS-120QC

UniStat LED Status Indicator With Sounder, 120VAC, Quad-Color (Amber, Blue, Green and Red) - Available in 24VDC and 120VAC. Tri- or quad-color models. 50,000 hour vibration resistant LED light source. Available with built-in sounder (Model USIS). Surface mount and integrated 3/4-inch NPT pipe mount. PLC compatible. Indoor use only. Type 4X, IP66 enclosure. Type 1 with sounder, 60 dBa at 10 feet. UL and cUL Listed.
MicroStat LED Status Indicator 1 High 120VAC Amber - 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-120A

MicroStat LED Status Indicator 1 High 120VAC Amber - 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 LED Status Indicator 1 High 120VAC Blue - 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-120B

MicroStat LED Status Indicator 1 High 120VAC Blue - 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 LED Status Indicator 1 High 120VAC Clear - 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-120C

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MSL1L-120R

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MSL2-120B-MSF

Microstat Status indicator, 2-High, 120VAC, Sounder, Flashing, Blue - 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.
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Frequently Asked Questions

What are the available voltage options for the MicroStat?

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

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).

Can I use the MicroStat status indicator outdoors?

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

What is the diameter of the MicroStat unit?

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

What is the operating current for a 120VAC, 3-segment MicroStat?

A 3-segment MicroStat (MSL3) operating on 120VAC draws 0.6 amps.

Is a clear lens available for all 24VAC/DC MSL1 models?

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

What are the installation options for the MicroStat?

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

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 rating of the MicroStat?

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

What is the standard lamp type and its expected life?

The standard light source is a Wedge-Type Lamp #655 with an expected lamp life of 7,000 hours.

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.