3825 Ohio Avenue • St. Charles, IL 60174

Phone: 800-SENSOR2 • Fax: 630-377-6495

©2008 System Sensor.

Product specifications subject to change without notice. Visit systemsensor.com for

current product information, including the latest version of this data sheet.

A05-0375-003 • 6/08 • #1991

APA151 Piezo Annunciator

Voltage

Regulated 24 VDC

Operating Voltage

16 to 33 VDC

Maximum Alarm Current

30 mA

Temperature Range

0°C to 49°C (32°F to 120°F)

Relative Humidity

10 to 93% non-condensing

Wire Gauge

12 to 18 AWG

Dimensions

4.6 in H × 2.9 in W × .45 in D

Voltage

Regulated 12 DC or FWR (Full Wave Rectified)

or Regulated 24VDC or FWR

Operating Voltage

8 to 33 VDC

Sounder Current Draw

22 mA RMS max at 8 to 17.5 Volts DC

17 mA RMS max at 8 to 17.5 Volts FWR

29 mA RMS max at 16 to 33 Volts DC

25 mA RMS max at 16 to 33 Volts FWR

Temperature Range

0°C to 49°C (32°F to 120°F)

Humidity Range

10 to 93% non-condensing

Nominal Sounder Frequency

3 kHz

Wire Gauge

12 to 18 AWG

Dimensions

4.6 in H × 2.9 in W × 0.45 in D

Voltage

24 VDC

Temperature Range

0°C to 49°C (32°F to 120°F)

Wire Gauge

12 to 18 AWG

Dimensions

3.8 in H × 1.6 in W × 1.6 in D

RA400Z Remote Annunciator

Voltage Range

Conventional System: 3.1 to 32 VDC

Intelligent System: 18 to 32 VDC

Maximum Alarm Current

10 mA

Dimensions

4.6 in H × 2.8 in W × 1.3 in D

Specifications, Duct Smoke Detector Accessories

RTS451 Remote Test Station

Power Requirements

Alarm LED: 2.8 to 32 VDC, 7.5 mA max.

Total Current: 105 mA max.

Test Switch

10 VA @ 32 VDC

Reset Switch

10 VA @ 32 VDC

Alarm Response Time

40 seconds max.

Temperature Range

–10°C to 60°C (14°F to 140°F)

Relative Humidity

95% non-condensing

Wire Gauge

14 to 18AWG

Dimensions

4.6 in H × 2.75 in W × 1.8 in D

RTS451KEY Remote Test Station with Key

Power Requirements

Power LED (Green): 14 to 35 VDC, 12 mA max.

Alarm LED (Red): 2.8 to 32 VDC, 7.5 mA max.

Total Current: 103 mA maximum

Alarm Response Time

40 seconds maximum

Temperature Range

–10°C to 60°C (14°F to 140°F)

Relative Humidity

95% non-condensing

Wire Gauge

14 to 18 AWG

Dimensions

4.6 in H × 2.75 in W × 1.8 in D

SSK451 Multi-signaling Accessory

Voltage

24 VDC

Power Requirements

Standby: 8 mA

Trouble: 16 mA

Alarm without strobe: 40 mA

Alarm with strobe: 65 mA

Sounder

87 dBA at ten feet

Temperature Range

–10°C to 60°C (14°F to 140°F)

Relative Humidity

95% non-condensing

Wire Gauge

14 to 22 AWG

Dimensions

4.8 in H × 4.7 in W × 1.5 in D

For the very latest product specifications and listing information, please visit

the System Sensor web site at www.systemsensor.com.

SSK451 with PS24LOW strobe

and PS12/24 LENSW lens