Data Sheet - System Sensor

Sounder Bases
System Sensor B200SR series sounder bases set a
new standard for performance, installation ease,
and aesthetics.
B200SR Series Features
• Tone selection via an onboard jumper
• UL 268 and UL 464 compliant
The B200SR sounder base series is designed for new and existing
dwelling unit applications. It offers maximum flexibility in installation,
configuration, and operation to meet or exceed UL 268 and UL 464
• Pre-wire mounting plate fits various junction box sizes
• F
ully compatible with existing B501BH-Series sounder base
• M
echanical locking feature prevents removal of attached
sensor head
• 520 Hz +/– 10% square wave tone (B200S-LF)
The B200SR series is fully compatible with existing B501BH-Series
sounder base installations. The device enables users to select one
of two B501-supported tones (ANSI Temporal 3 or Continuous) by
removing a jumper.
With its attractive aesthetics, the B200SR series is ideal for
applications where appearance is critical. For example, the sounder
base employs a separate mounting plate that installs on various
junction box sizes to eliminate unsightly surface-mount boxes. In
addition, the mounting plate enables pre-wiring of all connections
to speed and simplify installation. The housing then mates with the
mounting plate and is locked in position with two retaining screws,
which are covered by the installed sensor head for added tamper
The B200SR-LF low frequency sounder base is designed to meet
the NFPA 72 sleeping space requirement to produce a fundamental
frequency of 520 Hz +/– 10% with a square wave or its equivalent.
Studies show that a lower frequency, centered around 520 Hz, is the
most ideal to awaken sleeping occupants, even those with mild to
severe hearing loss.
Agency Listings
B200SR: 7135-1653:0213
B200SR-LF: 7300-1653:0238
Physical Specifications
Base Diameter
Base Height
Shipping Weight
Operating Temperature Range
Operating Humidity Range
Electrical Specifications: B200SR
External Supply Voltage
External Supply Standby Current
Alarm Current
SLC Operating Voltage
SLC Standby Current
Sound Output
6.875˝ (17.46 cm)
2.0˝ (5.08 cm) less sensor
B200SR: 0.50 lb. (227 gm); B200SR-LF: 0.60 lb. (272 gm)
Refer to applicable sensor Operating Temperature Range using the Base/Sensor Cross Reference
Chart at
10% to 93% relative humidity (non-condensing)
16 to 33 VDC (VFWR)
1 mA maximum
35 mA maximum
15 to 32 VDC
Refer to applicable sensor specification
Greater than 85 dBA minimum - measured in a UL reverberant room at 10 ft. 24 Volts
(in continuous tone)
Electrical Specifications: B200SR-LF
External Supply Voltage
16 to 33 VDC (VFWR)
External Supply Standby Current
1 mA maximum
Alarm Current
65 mA maximum @ 33.0 VDC
90 mA maximum @ 24.0 VDC
125 mA maximum @16.0 VDC
SLC Operating Voltage
15 to 32 VDC
SLC Standby Current
Refer to applicable sensor specification
Sound Output
Greater than 85 dBA minimum – measured in a UL reverberant room at 10 ft. 24 Volts
(in continuous tone)
3825 Ohio Avenue • St. Charles, IL 60174
Phone: 800-SENSOR2 • Fax: 630-377-6495
©2015 System Sensor.
Product specifications subject to change without notice. Visit
for current product information, including the latest version of this data sheet.
SPDS53802 • 02/15