i3 Series™ Photoelectric Smoke Detectors

Installation ease, intelligence, and instant inspection are the guiding principles of the System Sensor i 3 Series photoelectric smoke detectors. The i3 Series is a complete line – standard, sounder, auxiliary Form C relay, and isolated thermal models – featuring plug-in bases, removable covers, remote maintenance signaling, drift compensation and smoothing algorithms, green and red LEDs, and simplified sensitivity measurement.

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Description

Avg. Standby Current 50 µA

Model Details Are As Follows

Model No. – 2W-B
Loop Type – 2-wire
Thermal – No
Sounder – No
Form C Relay – No
Operating Voltage – 8.5-35 VDC
Max. Alarm Current – 130 mA limited by control panel

Model No. – 2WT-B
Loop Type – 2-wire
Thermal – Yes
Sounder – No
Form C Relay – No
Operating Voltage – 8.5-35 VDC
Max. Alarm Current – 130 mA limited by control panel

Model No. – 4W-B
Loop Type – 4-wire
Thermal – No
Sounder – No
Form C Relay – No
Operating Voltage – 8.5-35 VDC
Max. Alarm Current – 23 mA

Model No. – 4WT-B
Loop Type – 4-wire
Thermal – Yes
Sounder – No
Form C Relay – No
Operating Voltage – 8.5-35 VDC
Max. Alarm Current – 23 mA

Model No. – 2WTA-B
Loop Type – 2-wire
Thermal – Yes
Sounder – Yes
Form C Relay – No
Operating Voltage – 8.5-35 VDC
Max. Alarm Current – 130 mA*

Model No. – 2WTR-B
Loop Type – 2-wire
Thermal – Yes
Sounder – No
Form C Relay – Yes
Operating Voltage – 8.5-35 VDC
Max. Alarm Current – 130 mA limited by control panel

Model No. – 4WTA-B
Loop Type – 4-wire
Thermal – Yes
Sounder – Yes
Form C Relay – No
Operating Voltage – 10-35 VDC
Max. Alarm Current – 35 mA

Model No. – 4WTR-B
Loop Type – 4-wire
Thermal – Yes
Sounder – No
Form C Relay – Yes
Operating Voltage – 10-35 VDC
Max. Alarm Current – 35 mA

Model No. – 4WTAR-B
Loop Type – 4-wire
Thermal – Yes
Sounder – Yes
Form C Relay – Yes
Operating Voltage – 10-35 VDC
Max. Alarm Current – 50 mA

Model No. – 4WITAR-B
Loop Type – 4-wire
Thermal – Isolated
Sounder – Yes
Form C Relay – Yes
Operating Voltage – 10-35 VDC
Max. Alarm Current – 50 mA

*In direct power (non-reverse polarity), the maximum alarm current is 130 mA limited by the panel. In reverse polarity power, the maximum current is 30 mA for the 2WTA-B in alarm; 12 mA for all other 2WTA-B units on the loop. Add 25 mA for the RRS-MOD reversing relay alarm current.

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