Bosch S8-70-25 Specsheet

Fire Alarm Systems | S8‑70/25 Ceiling‑mount Dual‑voltage Speaker (white)
S8‑70/25 Ceiling‑mount Dual‑voltage Speaker (white)
www.boschsecurity.com
u 24 VDC with a wide UL regulated voltage range
using filtered VDC or unfiltered VRMS input
The Wheelock S8‑70/25 Ceiling‑mount Dual‑voltage Speaker provides high audible output with clear audibility at either of its field‑selectable voltages (25 VRMS or 70 VRMS) and at all of its field‑selectable powers (1/8 W, 1/4 W, 1/2 W, 1 W, 2 W, 4 W, or 8 W). The speakers have a 12‑inch round metal grill and a molded, flame‑retardant core.
Certifications and approvals
Cooper Wheelock, Inc. holds these Listings and Approvals:
Region Certification
and powers from 1/8 W to 8 W
u High efficiency design for maximum output at
minimum wattage across a frequency range of 400 Hz to 4 kHz
u Compatible with DC circuit supervision
Mounting Considerations
The S8‑70/25 Speaker is designed to mount flush in a hung tile ceiling. The CBB‑8 Circular Back Box or its equivalent is required to meet UL1480 requirements. When the speaker and back box cannot be installed directly through a ceiling tile, a support bridge (SBB‑8 or equivalent) must be used.
Notice
Do not use these speakers in hazardous locations as defined by the National Electrical Code (NEC) and by NFPA. Do not expose these speakers to rain or moisture.
USA UL UUMW: Speakers and Amplifiers for Fire
Protective Signaling Systems (UL1480, UL1711, and UL2043)
CSFM see our website
Installation/configuration notes
Compatibility Information
These speakers are compatible with Wheelock SAFEPATH4 Facility Communication Systems and Bosch Voice Evacuation Systems.
Wiring Considerations
The terminal block accepts two 12 AWG (2.3 mm) to 18 AWG (1.2 mm) stranded wires at each screw terminal.
2 | S8‑70/25 Ceiling‑mount Dual‑voltage Speaker (white)
Parts included
Quant. Component
1 Speaker
1 Literature pack
Technical specifications
Environmental
Relative Humidity: Up to 85%, non‑condensing
Temperature (operating): +32°F to +120°F (0°C to +49°C)
Mechanical
Color: white, powder coat
Diameter: Grill: 12 in. (30.5 cm)
Speaker: 8 in. (20.3)
Weight: 3.75 lb (1.7 kg)
Electrical
Voltage
Range : 16.0 VDC or VRMS to 33.0 VDC or VRMS
Regulated: 24 VDC or VRMS
Accessories
CBB‑8 Circular Back Box
Overall (flange) diameter of 31.3 cm (12.3125 in.), interior diameter of 24.8 cm (9.75 in.), depth of
10.3 cm (4.1 in.)
Order number CBB-8
SSB‑8 Ceiling Support Bridge
23.75 in. (60.3 cm) long by 14.5 in. (36.8 cm) wide
Order number SSB-8
Speaker Characteristics
Frequency Response: 200 Hz to 15 kHz (400 Hz to 4 kHz UL)
Impedance: 8 Ω
Decibel Rating at 10 ft (3 m):
1/8 W: 75 dBA
1/4 W: 78 dBA
1/2 W: 81 dBA
1 W: 84 dBA
2 W: 87 dBA
4 W: 90 dBA
8 W: 93 dBA
Trademarks
All hardware and software product names used in this document are likely to be registered trademarks and must be treated accordingly.
Ordering information
S8‑70/25 Ceiling‑mount Dual‑voltage Speaker (white)
Compatible with Wheelock SAFEPATH4 Facility Communication Systems and Bosch Voice Evacuation Systems
Order number S8-70/25
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