Bosch ET70-W, ET70-R, ET70-N Specsheet

Fire Alarm Systems | ET70 High performance Speakers

ET70 High performance Speakers

www.boschsecurity.com

u 25 VRMS or 70 VRMS operation at a choice of seven taps from 0.125 W to 8 W

u Cost effective two wire design

u Low average current draw

u Extra protection and improved audibility through sealed back speaker construction

u Easy wiring with screw terminals

The ET70 Series Speakers provide high audio output with clear audibility, and are designed to meet the critical needs of the life safety industry for effective emergency voice communications and tone signaling. The high efficiency speakers are designed for maximum output at a minimum wattage across a frequency range of 400 Hz to 4 kHz.

A speaker mounting plate with a built in level adjustment allows for a faster and easier installation. The two screw grill cover creates an attractive appearance.

Certifications and approvals

Cooper Wheelock, Inc. holds these Listings and Approvals:

Region	Certification
USA	UL	UEAY: Speakers (UL464)
	CSFM	see our website

Installation/configuration notes

Compatible Products

The following products are compatible with these ET70 Speakers:

Category	Product ID	Product Description
Control	D70221	Conventional FACP
Panels
	D70242	Addressable FACP
	D7024	Conventional FACP
	D8024	Analog FACP
	D9124	Addressable FACP
	D10024A	Analog FACP
	FPD-70242	Addressable FACP
	FPD-7024	Conventional FACP

These speakers are compatible with Wheelock SAFEPATH4 Facility Communication Systems and Bosch Voice Evacuation Systems.

1 When used, the D7022 must be set for 24 VDC operation.

2 When used with a D7039 Multiplex Expansion Module, the D7024 and FPD-7024 become addressable fire alarm control panels (FACPs).

Mounting

The low profile design of these notification appliances creates more wiring space in standard electrical back boxes. The speaker mounting plate incorporates a

2 | ET70 High performance Speakers

built in level adjustment feature allowing for a faster and easier installation. These speakers mount on the indicated back boxes for the indicated applications:

	Conduit	Surface	Flush Mounted
	Applications	Mounted
Four inch square*			•
SBB Back Box	•	•

*Requires an SER extension ring. Use as Combination Appliance

Where combination appliances are required, these speakers can be used with the RSSP 241575W FR (15/75 cd), RSSP 24MCW FR (15 cd, 30 cd, 75 cd, or 110 cd), or RSSP 24MCWH FR (135 cd or 185 cd) Retrofit Strobe Plates that are designed to meet or exceed the latest requirements of NFPA 72,

ANSI 117.0 and UL 1971. The speakers and retrofit strobe plates are also compatible with the SBL2 R Retrofit Device Back Box.

Wiring

The input terminals accept wires with diameters between 18 AWG and 12 AWG (ISO 0.75 mm2 and 4 mm2).

Parts included

Quant. Component

1Speaker

1Mounting Plate

1Hardware pack

1Literature pack

Technical specifications

Electrical

Power Requirements

Voltage (input):		24 VDC nominal;
		16 VDC or FWR to 33 VDC or FWR
Environmental
Relative Humidity:				Up to 85%, non condensing
Temperature (Operating):				+32°F to +120°F (0° to +49°C)
Mechanical
Dimensions (H x W x D):			5.1 in. x 5.1 in. x 2.9 in.
			(13.0 cm x 13.0 cm x 7.4 cm)
Material:			Molded plastic

Speaker Volume at 10 ft (3 m)

0.125 (1/8) W:	75 dBA
0.25 (1/4) W:	78 dBA
0.5 (1/2) W:	81 dBA

1 W:	84 dBA
2 W:	87 dBA
4 W:	90 dBA
8 W:	93 dBA

Ordering information

ET70 N High Performance Speaker (nickel)

Nickel finish, 24 VDC device with high audio output with clear audibility and field selectable taps from 1/8 W to 8 W

Order number ET70-N

ET70 R High Performance Speaker (red)

Red, 24 VDC device with high audio output with clear audibility and field selectable taps from 1/8 W to 8 W

Order number ET70-R

ET70 W High Performance Speaker (white)

White, 24 VDC device with high audio output with clear audibility and field selectable taps from 1/8 W to 8 W

Order number ET70-W

Accessories

ISP2 R Surface Adapter (red)

13.3 cm (5.25 in.) square, 3 cm (1.1875 in.) deep

Order number ISP2-R

ISP2 W Surface Adapter (white)

13.3 cm (5.25 in.) square, 3 cm (1.1875 in.) deep

Order number ISP2-W

RP R Retrofit Plate (red)

20.3 cm (8 in.) high, 14.9 cm (5.875 in.) wide. Not Available.

Order number RP-R

SBB R Surface mount Back Box (red)

14 cm (5.5 in.) x 14.2 cm (5.6 in.) x 9.1 cm (3.6 in.)

Order number SBB-R

SBB W Surface mount Back Box (white)

14 cm (5.5 in.) x 14.2 cm (5.6 in.) x 9.1 cm (3.6 in.)

Order number SBB-W

SER R Square Semi flush Extension Ring (red)

12.7 cm (5 in.) square by 4 cm (1.5625 in.) deep

Order number SER-R

SER W Square Semi flush Extension Ring (white)

12.7 cm (5 in.) square by 4 cm (1.5625 in.) deep

Order number SER-W

SFP R Semi flush Plate (red)

15.2 cm (6 in.) square by 0.8 cm (0.3125 in.) thick

Order number SFP-R

SSB 4 Ceiling Support Bridge

60.3 cm (23.75 in.) long by 16.5 cm (6.5 in.) wide

Order number SSB-4