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Federal Signal 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.

Federal Signal MSL4-120BAR-MSF Microstat Status indicator, 4-High, 120VAC, Sounder, Flashing, Blue/Amber/Red…

Alternate Item Number: msl-microstat

UPC: 782979217671

Documents & Media
Installation InstructionsLine DrawingSpecification SheetWarranty

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Federal Signal MSL4-120BAR-MSF MicroStat Status Indicator is a factory-assembled, 4-high signaling device designed for industrial environments, operating at 120VAC. It features a sounder with flashing capabilities, producing 93-95 dBa at 1m (83-85 dBa at 10ft). The unit is available in 24VAC/DC or 120VAC configurations, with a factory-assembled design for reliability. Its compact design includes a small footprint of 2.2 inches (55.9 mm) in diameter, making it ideal for panels or tight installation spaces. Mounting options include surface mount and an integrated 3/4-inch NPT pipe mount, providing flexibility for various installation requirements. The MSL4-120BAR-MSF offers five lens colors: Amber, Blue, Clear, Green, and Red, allowing for customizable visual signaling. An optional 50,000-hour LED lamp is available for extended operational life, reducing maintenance needs. The unit is PLC compatible, ensuring seamless integration into existing control systems for enhanced automation and monitoring. It features a Type 4X enclosure for indoor use, with an optional sounder rated NEMA Type 1 for additional protection. The MSL4-120BAR-MSF is UL and cUL Listed, meeting stringent safety and performance standards for industrial applications. Optional accessories include a sound module (MSS), pipe mount base, and flasher, further enhancing its versatility. This compact yet robust indicator is suitable for applications requiring clear visual and audible status indication, such as process control, machine monitoring, and alarm systems.
  • 4-High status indicator with sounder and flashing capability
  • 120VAC operation with optional 24VAC/DC
  • Compact 2.2-inch (55.9 mm) diameter with small footprint
  • Surface mount and integrated 3/4-inch NPT pipe mount options
  • Type 4X enclosure for indoor use, UL and cUL Listed
  • UL and cUL Listed for safety and compliance
  • Optional 50,000-hour LED lamp and sound module (MSS) for extended durability and customizable alerts
  • PLC compatible for seamless integration with industrial control systems

Specifications

0.8
A
120
VAC
16.5 H x 2.2 W x 2.2 D
IN
7,000
HR
Amperage
0.8 A
Amperage Rating
0.8 AMP
Application
Indoor
Brand Name
Federal Signal
Depth
2.2 in
Depth
55.88 mm
Enclosure
NEMA TYPE 1
Environmental Conditions
32 to 104 DEG F
Height
16.5 in
Height
419.1 mm
Lamp Life
7,000 HR
Lamp Type
Wedge
Lens Color
Amber;Blue;Red
Lens Color
Blue/Amber/Red
Lens Material
Polycarbonate
Mounting
3/4-Inch NPT Pipe/Surface
Operating Voltage
120VAC
Operating Voltage
120
Size
16.5 H x 2.2 W x 2.2 D IN
Special Features
Sound Module and Flasher Included
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)
4 IN x 19.63 IN x 4 IN
Package Dimensions (L x W x H)
10.16 cm x 49.8602 cm x 10.16 cm
Package Weight (Imperial)
1.500 L
Package Weight (Metric)
0.680 kg
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.
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 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.

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.
MicroStat Incandescent Status Indicator, 4-High, UL and cUL, 120VAC, All Lens Colors

MSL4-120

MicroStat Incandescent Status Indicator, 4-High, UL and cUL, 120VAC, All Lens Colors
MicroStat Incandescent Status Indicator, 5-High, UL and cUL, 120VAC, All Lens Colors

MSL5-120

MicroStat Incandescent Status Indicator, 5-High, UL and cUL, 120VAC, All Lens Colors
Microstat Status indicator, 4-High, 24VDC/AC, 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.

MSL4-024BAR-MSF

Microstat Status indicator, 4-High, 24VDC/AC, 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 24VAC/DC - 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-024

MicroStat LED Status Indicator 5 High 24VAC/DC - 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 3 High 24VAC/DC 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.

MSL3L-024RAG

MicroStat LED Status Indicator 3 High 24VAC/DC 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.
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.

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 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, 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, Blue

MSL2-120AB

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

Frequently Asked Questions

What are the available operating voltages for the MicroStat?

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

What are the installation options for the MicroStat?

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

What is the operating temperature range for this device?

The operating temperature range for the MicroStat is 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 compatible with Programmable Logic Controllers (PLCs)?

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

What lens colors are available for the MicroStat?

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

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 Wedge-Type Lamp #655 with a lamp life of 7,000 hours.

Is an LED lamp option available for the MicroStat?

Yes, an optional 50,000-hour LED lamp (MSLED Lamp) is available.

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).

How to Install the MSL4-120BAR-MSF MicroStat™ Status Indicator

Installation guide for mounting and wiring the MSL4-120BAR-MSF MicroStat™ status indicator.

Estimated time: 45m

Tools needed:

Phillips head screwdriver, Drill, 1" hole saw, Wire strippers

Supplies needed:

Mounting screws (#6), Gasket or template, Reducer (if using 1/2" pipe)

  1. Prepare the unit for mounting

    Disassemble the MSL4-120BAR-MSF unit by twisting the bottom lens counter-clockwise to unlock and remove the entire stack of colored lenses. Retain all O-rings. Then, remove the two Phillips head #6 screws to disassemble the sleeve(s) from the base, keeping the printed circuit board attached to the sleeve(s). Retain any O-rings.

  2. Mount the base

    For pipe mounting, thread the MSL base onto a 3/4" NPT pipe. If using 1/2" pipe, a user-supplied reducer is required. For surface mounting, use the gasket or template to mark four mounting holes and a 1" center clearance hole on a flat surface. Drill the mounting holes with a #34 drill and the clearance hole with a 1" hole saw. Knock out the four surface mount holes at the bottom of the MSL base. Place the gasket on the surface, position the base over it, and secure with appropriate #6 screws. Do not overtighten.

  3. Make electrical connections

    Feed the control wires through the NPT opening in the base. Remove the terminal block plug from the printed circuit board assembly. Connect the control wires to the female terminal block plug, noting that terminals '1' through '5' correspond to lamp positions from bottom to top. Reconnect the female plug to the printed circuit board assembly. The maximum tightening torque for field wiring connections is 5 in-lb (0.56 N.m).

  4. Reassemble the unit

    Ensure an O-ring is in place on each module. Reattach the sleeve(s) to the base by sliding the printed circuit board into the base channels and fastening with the screws removed earlier. If desired, install optional light shields over the lamps by pressing them into place. Reassemble the colored lenses onto the base, ensuring an O-ring is between each lens for a watertight seal. Twist each lens clockwise until it locks. The lens color sequence is user-determined.

  5. Test the indicator

    After installation and reassembly, test the MSL4-120BAR-MSF MicroStat™ to ensure it operates as intended. Verify all screws and threaded joints are properly tightened. Provide a copy of this instruction sheet to operating personnel and establish a routine check procedure.

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.