Federal Signal 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.
Federal Signal

MSL1L-120A

Alternate Item Number: msl-led

UPC: 782979225621


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Overview

The Federal Signal MSL1L-120A MicroStat LED Status Indicator delivers reliable visual status signaling for industrial applications requiring a compact, high‑visibility amber light. Rated at 120 VAC, this indicator is factory‑assembled and designed for both surface and pipe mounting, providing installation flexibility in confined spaces. Its 2.2‑inch diameter (55.9 mm) ensures a small footprint while delivering a bright amber illumination that is easy to detect. The 50,000‑hour LED lamp guarantees long‑term operation with minimal maintenance, and the NEMA 4X enclosure protects against dust and moisture, making it suitable for harsh indoor environments. Additional options include an optional sound module (MSS), pipe mount base, and flasher, allowing for auditory alerts when needed. The indicator is PLC compatible and UL/cUL listed, ensuring it meets safety and performance standards for industrial control systems. Whether used in power distribution, HVAC, or process control, the MSL1L-120A provides a durable, cost‑effective solution for status indication that meets the demands of modern industrial facilities.
  • 120 VAC amber rating for reliable status indication
  • 2.2‑inch diameter compact design for tight spaces
  • Surface/pipe mounting options for flexible installation
  • 50,000‑hour LED lamp for long‑term reliability
  • NEMA 4X enclosure protects against dust and moisture

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
Amber
Depth
2.2 in
Depth
55.88 mm
Enclosure
Type 4X
Environmental Conditions
32 to 104 DEG F
Frequency
50/60 Hz
Height
7.8 in
Height
198.12 mm
Ip Rating
IP4X
Lamp Life
50,000 HR
Lamp Type
LED
Lens Color
Amber
Lens Material
Polycarbonate
Mounting
3/4-Inch NPT Pipe/Surface
Mounting Type
Surface mount and 3/4-inch NPT pipe mount
Nema Rating
Type 4X
Operating Voltage
120VAC
Operating Voltage
120
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
MicroStat LED Status Indicator 1 High 24VAC/DC 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-024A

MicroStat LED Status Indicator 1 High 24VAC/DC 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.
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MSL1-120A

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LSLD-024A

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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

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.
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 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 LED Status Indicator 1 High 120VAC Red - 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-120R

MicroStat LED Status Indicator 1 High 120VAC Red - 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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LSL-024A

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Microstat Status indicator, 2-High, 120VAC, Sounder, Flashing, 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.

MSL2-120R-MSF

Microstat Status indicator, 2-High, 120VAC, Sounder, Flashing, 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, 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.

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.

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 device?

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

What are the mounting options for the MicroStat indicator?

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

What is the enclosure type of the MicroStat?

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

Is the MicroStat compatible with PLC systems?

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

What are the available lens colors for the MicroStat?

The MicroStat offers five lens colors: Amber, Blue, Clear, Green, and Red.

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 as one of the five units.

What is the sound output level of the optional sounder?

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

What is the diameter of the MicroStat status indicator?

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

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.