Federal Signal MSL1-024B - MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 24VDC/AC, Blue
Federal Signal

MSL1-024B

Alternate Item Number: msl-microstat

UPC: 782979201656


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Overview

The Federal Signal MicroStat 1-High Blue Incandescent Status Indicator (SKU MSL1-024B) delivers dependable visual status indication for industrial control systems operating at 24 VDC/AC. Designed with a compact 1‑High form factor and a clear blue light, this indicator meets UL and cUL safety certifications, ensuring compliance in critical applications. Its incandescent illumination provides a bright, low‑power signal that is easily visible in both daylight and low‑light environments, making it ideal for PLC panels, instrumentation cabinets, and other automation equipment. The device’s robust construction protects against vibration and temperature extremes, while the simple mounting interface allows for quick integration into existing panels. Whether you need to signal power, alarm, or operational status, the MicroStat offers a reliable, cost‑effective solution that enhances system visibility and troubleshooting efficiency. Choose Federal Signal for quality, safety, and performance in every industrial setting.
  • 24 VDC/AC voltage rating for versatile power compatibility
  • Blue incandescent light provides high visibility and low power consumption
  • UL and cUL certified for safety and reliability
  • Compact 1‑High size fits tight panel spaces
  • Simple mounting and quick installation for efficient deployment

Specifications

0.2
A
24
VAC
24VAC/DC
V
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
Blue
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
Blue
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
24VAC/DC
Operating Voltage
24
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,cUL
Standard
UL Listed/cUL Listed
Sub Brand
MicroStat
Type
status Indicator
Voltage Rating
24VAC/DC
Voltage Rating
24 VDC/AC
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, Red

MSL1-024R

MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 24VDC/AC, Red
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
UniStat LED Status Indicator, 24VDC, Tri-Color (Amber, 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.

USI-024TC

UniStat LED Status Indicator, 24VDC, Tri-Color (Amber, 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.
UniStat LED Status Indicator, 24VDC, 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.

USI-024QC

UniStat LED Status Indicator, 24VDC, 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 Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Blue

MSL1-120B

MicroStat Incandescent Status Indicator, 1-High, UL and cUL, 120VAC, Blue
MicroStat LED Status Indicator 1 High 24VAC/DC 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-024B

MicroStat LED Status Indicator 1 High 24VAC/DC 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 Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Amber, Blue

MSL2-024AB

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Amber, Blue
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Blue, Clear

MSL2-024BC

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Blue, Clear
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Clear, Red

MSL2-024CR

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Clear, Red
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Amber, Red

MSL2-024AR

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Amber, Red
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Green, Red

MSL2-024GR

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Green, Red
MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Amber, Green

MSL2-024AG

MicroStat Incandescent Status Indicator, 2-High, UL and cUL, 24VDC/AC, Amber, Green

Frequently Asked Questions

What are the available voltage options?

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

What are the mounting options for the MicroStat?

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

What is the diameter of the MicroStat indicator?

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

What is the operating temperature range?

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

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?

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

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?

Yes, an optional sound module 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 are the available lens colors?

The five available lens colors are Amber, Blue, Clear, Green, and Red.

How to Install the MSL1-024B MicroStat™ Status Indicator

This guide provides step-by-step instructions for installing and configuring the MSL1-024B MicroStat™ Status Indicator, including mounting, wiring, and initial setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, O-rings, Terminal connectors

  1. Unpack and Inspect the Unit

    Carefully unpack the MSL1-024B unit and inspect it for any damage that may have occurred during transit. If damaged, do not proceed with installation and file a claim with the carrier.

  2. Mount the Base

    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 appropriate screws, ensuring not to over-tighten.

  3. Make Electrical Connections

    Feed the control wires through the NPT opening in the base. Connect the wires to the female terminal block plug according to the labeled terminals (1-5). Ensure power is off during this process to avoid electrical shock.

  4. Reassemble the Unit

    Reattach the sleeve(s) to the base by sliding the printed circuit board into the channels. Secure with the screws removed earlier. Ensure all O-rings are in place before reassembling the colored lenses.

  5. Test the Installation

    After reassembling the unit, restore power and test the MicroStat™ to ensure it operates correctly. Verify that all lights function as intended.

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.