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Alarms Series - Universal Alarms and Accessories

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Littelfuse Alarms and Accessories are designed for universal applications within harsh environments. Their features are designed for ease-of-installation and extended product lifecycle. Equipped with electromechanical buzzers that are designed for long-life, these products are designed to instantly indicate state changes to end users. Products will function with a variety of Cole Hersee and Littelfuse branded switches.

Many uses such as, door ajar warning, bus driver alert, low air pressure, temperature, etc.
Works with any temperature, pressure, door or momentary switch.

Access specifications, certifications, check availability and order parts below

Catalog #HousingMounting MethodInput TerminalsDimensionsCompare
Catalog #HousingMounting MethodInput TerminalsDimensionsCompare
4099 Impact-Resistant ABS Resin Case Moisture-Repellent InsulatorThree Mounting Holes (0.283 / 7.18mm Diameter 0.562 /14.28mm Apart)Two screw terminals with lockwashers2.53125 H x 2.5 W x 1.875 L in. (64.3 x 63.2 x 30.9 mm)
40151 2 Screw
40100 2 Screw
40100-01
40151-03
40151-BX 2 Screw
40212 Lightweight Molded Plastic Housing with Negative Ground TerminalMates to Littelfuse 3032 or 3029 Delphi (Packard) 12033871.Three 1/4 (6.4mm) blades0.93 H x 1.185 W x 2.005 L in. (23.66 x 30.3 x 50.4 mm)
40212-BX Lightweight Molded Plastic Housing with Negative Ground TerminalMates to Littelfuse 3032 or 3029 Delphi (Packard) 12033871.Three 1/4in (6.4mm) blades0.93 H x 2.5 W x 2.005 L in. (23.66 x 30.3 x 50.4 mm)
4099-10
4099-11
4099-BP Impact-Resistant ABS Resin Case Moisture-Repellent InsulatorThree Mounting Holes (0.283 / 7.18mm Diameter 0.562 /14.28mm Apart)Two screw terminals with lockwashers2.53125 H x 2.5 W x 1.875 L in. (64.3 x 63.2 x 30.9 mm)
4099-BX Impact-Resistant ABS Resin Case Moisture-Repellent InsulatorThree Mounting Holes (0.283 / 7.18mm Diameter 0.562 /14.28mm Apart)Two screw terminals with lockwashers2.53125 H x 2.5 W x 1.875 L in. (64.3 x 63.2 x 30.9 mm)
4112-RC-BP Plated Steel; Non-Grounded0.6875 (17.46mm) Diameter 0.53125 (12.88mm) Long Mounting StemTwo Screw #8-321.34375 H x 1 W x 1.875 L in. (34.1 x 25.4 x 47.6 mm)
4112-RC000 Plated Steel.6875' (17.46mm) Diameter .53125' (12.88mm) Long Mounting StemTwo Screw #8-32
4112-RC000-BX Plated Steel; Non-Grounded0.6875 (17.46mm) Diameter 0.53125 (12.88mm) Long Mounting StemTwo Screw #8-321.34375 H x 1 W x 1.875 L in. (34.1 x 25.4 x 47.6 mm)
4112-RC017
4124-RD000
4124-RD000-BX
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
4099 ALARM BUZZER 12V No 09/18/2019 No 09/18/2019 /~/media/images/littelfuse/site-logo/lf_logo.png" alt="Littelfuse Circuit Protection Sensors and Power Control" height ="62" width ="191" />

Alarms Series - Universal Alarms and Accessories

External overview image
Roll Over to Zoom

Littelfuse Alarms and Accessories are designed for universal applications within harsh environments. Their features are designed for ease-of-installation and extended product lifecycle. Equipped with electromechanical buzzers that are designed for long-life, these products are designed to instantly indicate state changes to end users. Products will function with a variety of Cole Hersee and Littelfuse branded switches.

Many uses such as, door ajar warning, bus driver alert, low air pressure, temperature, etc.
Works with any temperature, pressure, door or momentary switch.

Access specifications, certifications, check availability and order parts below

Catalog #HousingMounting MethodInput TerminalsDimensionsCompare
Catalog #HousingMounting MethodInput TerminalsDimensionsCompare
4099 Impact-Resistant ABS Resin Case Moisture-Repellent InsulatorThree Mounting Holes (0.283 / 7.18mm Diameter 0.562 /14.28mm Apart)Two screw terminals with lockwashers2.53125 H x 2.5 W x 1.875 L in. (64.3 x 63.2 x 30.9 mm)
40151 2 Screw
40100 2 Screw
40100-01
40151-03
40151-BX 2 Screw
40212 Lightweight Molded Plastic Housing with Negative Ground TerminalMates to Littelfuse 3032 or 3029 Delphi (Packard) 12033871.Three 1/4 (6.4mm) blades0.93 H x 1.185 W x 2.005 L in. (23.66 x 30.3 x 50.4 mm)
40212-BX Lightweight Molded Plastic Housing with Negative Ground TerminalMates to Littelfuse 3032 or 3029 Delphi (Packard) 12033871.Three 1/4in (6.4mm) blades0.93 H x 2.5 W x 2.005 L in. (23.66 x 30.3 x 50.4 mm)
4099-10
4099-11
4099-BP Impact-Resistant ABS Resin Case Moisture-Repellent InsulatorThree Mounting Holes (0.283 / 7.18mm Diameter 0.562 /14.28mm Apart)Two screw terminals with lockwashers2.53125 H x 2.5 W x 1.875 L in. (64.3 x 63.2 x 30.9 mm)
4099-BX Impact-Resistant ABS Resin Case Moisture-Repellent InsulatorThree Mounting Holes (0.283 / 7.18mm Diameter 0.562 /14.28mm Apart)Two screw terminals with lockwashers2.53125 H x 2.5 W x 1.875 L in. (64.3 x 63.2 x 30.9 mm)
4112-RC-BP Plated Steel; Non-Grounded0.6875 (17.46mm) Diameter 0.53125 (12.88mm) Long Mounting StemTwo Screw #8-321.34375 H x 1 W x 1.875 L in. (34.1 x 25.4 x 47.6 mm)
4112-RC000 Plated Steel.6875' (17.46mm) Diameter .53125' (12.88mm) Long Mounting StemTwo Screw #8-32
4112-RC000-BX Plated Steel; Non-Grounded0.6875 (17.46mm) Diameter 0.53125 (12.88mm) Long Mounting StemTwo Screw #8-321.34375 H x 1 W x 1.875 L in. (34.1 x 25.4 x 47.6 mm)
4112-RC017
4124-RD000
4124-RD000-BX
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
4099 ALARM BUZZER 12V No 09/18/2019 No 09/18/2019 ../../../../../Common
09/18/2019
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