Fire Alarm Bells | McMaster-Carr

	Voltage Voltage

	Audible Signal Type Audible Signal Type


Bell	Buzzer

Horn

	Volume Volume

	Signal Type Signal Type

Audible Alarm

Signal Light with Audible
Alarm

	Color Color

	Red
	White
	Gray

	Environment Environment

	Current Current

	Material Material

Aluminum

Plastic

	Volume Control Volume Control

Fixed

Adjustable

	Diameter Diameter

10"

	Electrical Connection Type Electrical Connection Type

Screw Terminals

Wire Leads

	Fasteners Included Fasteners Included

Yes

	Specifications Met Specifications Met

CFM

ADA

CSA

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Sound Pattern Sound Pattern

Continuous

Pulse

	Height Height

	Width Width

	Depth Depth

	Light Intensity Light Intensity

	Environmental Rating Environmental Rating

IP54

NEMA 3R

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant with
Exemptions

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25 Products

About Sound Levels

To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.

Surface mount using an outlet box (sold separately).

With Screw Terminals
Voltage	Current	Volume	Environment	Dia.	Material	Color	Fasteners Included	Specifications Met		Each
120V AC	0.12 A @ 120 V AC	86 dBA @ 10 ft.	Outdoor	6"	Aluminum	Red	Yes	UL Listed, C-UL Listed, FM Approved	00000000	0000000
120V AC	0.12 A @ 120 V AC	88 dBA @ 10 ft.	Outdoor	10"	Aluminum	Red	Yes	UL Listed, C-UL Listed, FM Approved	00000000	000000

Bell Guard	0000000	Each	000000
Outdoor Outlet Box	00000000	Each	00000
Outlet Box	00000000	Each	0000

Fire Alarms with Strobe Light

In addition to an audible signal, these alarms flash a high-intensity strobe to draw attention during fire emergencies.

Styles E and F have a strobe that helps comply with ADA standards for photosensitivity when properly installed.

Surface mount using an outlet box (sold separately for Styles A-E).

Fire Alarms

With Screw Terminals
	Voltage	Current	Volume	Light Intensity, cp	Ht.	Wd.	Dp.	Material	Fasteners Included	Features	Specifications Met	Choose a Color		Each
A	12V DC	0.43 A @ 12 V DC	80-92 dBA @ 10 ft.	15/75	5 1/8"	5 1/8"	4 3/8"	Plastic	Yes	Eight Tones	UL Listed, California Fire Marshal Approved	White	00000000	0000000
B	24V DC	0.33 A @ 24 V DC	80-92 dBA @ 10 ft.	15/30/75/110	5 1/8"	5 1/8"	4 3/8"	Plastic	Yes	Eight Tones	UL Listed, California Fire Marshal Approved	Red	00000000	000000
E	24V DC	0.33 A @ 24 V DC	79-91 dBA @ 10 ft.	15/30/75/110	5 1/8"	5 1/8"	4 3/8"	Plastic	Yes	Two Tones	UL Listed, California Fire Marshal Approved, ADA Compliant	Red, White	0000000	000000

Steel Outlet Box	00000000	Each
Red Plastic Outlet Box	000000000	Each
White Plastic Outlet Box	000000000	Each

Fire Alarms for Outdoor Use

With Screw Terminals
	Voltage	Current	Volume	Light Intensity, cp	Ht.	Wd.	Dp.	Material	Knockout Trade Size	Fasteners Included	Features	Specifications Met	Choose a Color		Each
C	120V AC	0.05 A @ 120 V AC	74-89 dBA @ 10 ft.	15	4 1/8"	4 1/8"	3 1/2"	Plastic	__	Yes	Eight Tones	UL Listed, California Fire Marshal Approved	Gray	00000000	0000000
D	120V AC	0.05 A @ 120 V AC	74-89 dBA @ 10 ft.	15	4 1/8"	4 1/8"	3 1/2"	Plastic	__	Yes	Eight Tones	UL Listed, California Fire Marshal Approved	Red	00000000	000000
F	24V DC	0.19 A @ 24 V DC	100 dBA @ 10 ft.	75	5 3/4"	4 3/4"	4 3/16"	Plastic	1/2	Yes	Two Tones	UL Listed, California Fire Marshal Approved, ADA Compliant	Red, White	000000	000000

Red Aluminum Outlet Box	Each	000000
Steel Outlet Box	Each	0000
Gray Aluminum Outlet Box	Each	00000

Fire Alarms

Surface mount using an outlet box (sold separately).

With Screw Terminals
	Voltage	Current	Volume	Environment	Ht.	Wd.	Dp.	Material	Color	Fasteners Included	Specifications Met		Each
A	12V DC 24V DC	0.11 A @ 24 V DC 0.18 A @ 12 V DC	80-92 dBA @ 10 ft.	Outdoor	5 1/8"	5 1/8"	2 1/8"	Plastic	Red	Yes	UL Listed, California Fire Marshal Approved	00000000	000000
A	12V DC 24V DC	0.11 A @ 24 V DC 0.18 A @ 12 V DC	80-92 dBA @ 10 ft.	Outdoor	5 1/8"	5 1/8"	2 1/8"	Plastic	White	Yes	UL Listed, California Fire Marshal Approved	00000000	00000
B	120V AC	0.05 A @ 120 V AC	75-88 dBA @ 10 ft.	Outdoor	4 1/8"	4 1/8"	2 1/8"	Plastic	Gray	Yes	UL Listed, California Fire Marshal Approved	00000000	00000
B	120V AC	0.05 A @ 120 V AC	75-88 dBA @ 10 ft.	Outdoor	4 1/8"	4 1/8"	2 1/8"	Plastic	Red	Yes	UL Listed, California Fire Marshal Approved	00000000	00000

Steel Outlet Box	00000000	Each
Red Plastic Outlet Box	000000000	Each
White Plastic Outlet Box	000000000	Each
Red Aluminum Outlet Box	00000000	Each
Gray Aluminum Outlet Box	00000000	Each

Adjustable-Volume Multiple-Tone Horns

												Mounting Holes
Voltage	Current	Volume	Sound Pattern	Ht.	Wd.	Dp.	Material	Conduit Size	Thread Type	Gender	Fasteners Included	No. of	Dia.		Each
With Screw Terminals
24V AC 24V DC	1.1 A @ 24 V AC 1.1 A @ 24 V DC	0-110 dBA @ 10 ft.	Continuous Pulse	12 1/2"	8"	8 1/2"	Aluminum	1/2	NPT	Female	No	2	3/16"	0000000	0000000
120V AC	0.3 A @ 120 V AC	0-110 dBA @ 10 ft.	Continuous Pulse	12 1/2"	8"	8 1/2"	Aluminum	1/2	NPT	Female	No	2	3/16"	0000000	000000

Multiple-Tone Buzzers

With 2 Wire Leads
Voltage	Current	Volume	Environment	Sound Pattern	Ht.	Wd.	Dp.	Material	Fasteners Included	Specifications Met		Each
24V AC 24V DC	0.07 A @ 24 V DC 0.22 A @ 24 V AC	88 dBA @ 10 ft.	Outdoor	Continuous	4 1/2"	4 1/2"	3 1/2"	Plastic	Yes	C-UL Listed, California Fire Marshal Approved, UL Listed	0000000	0000000
120V AC	0.04 A @ 120 V AC	88 dBA @ 10 ft.	Outdoor	Continuous	4 1/2"	4 1/2"	3 1/2"	Plastic	Yes	C-UL Listed, California Fire Marshal Approved, UL Listed	0000000	000000

Outdoor Outlet Box	00000000	Each	000000
Outlet Box	00000000	Each	0000