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.

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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