System Sensor 2351B — Select Series intelligent photoelectric smoke sensor, white, plug-in head.
This is an addressable-analog sensor: rather than latching an alarm itself, it reports a measurement of smoke density and the panel decides. Sensitivity is set in panel software and monitored continuously. The address is set on two rotary decade switches, and the two LEDs are driven by the panel.
- 15 to 32 VDC; 200 µA standby at 24 VDC, 2 mA maximum in alarm, 4.5 mA maximum
- Supports Advanced Protocol and CLIP; addressable to 159 addresses
- UL 268 certified for open air and UL 268A for ducts; designed to meet UL 268 7th Edition
- 32 °F to 122 °F open area, -4 °F to 158 °F in ducts; 10-93% RH; 0 to 4,000 ft/min
- 2.0 in. high, 6.2 in. across in a B300-6 base or 4.1 in. in a B501; isolator load 0.0063
No base is supplied: B501-WHITE, B300-6, the B200S sounder, B224RB relay and B224BI isolator bases are separate orders, as is the RA100Z remote annunciator. In the same series, 2351BR is remote test capable for DNR and DNRW duct housings and 2351TB adds 135 °F thermal sensing; 2351B-IV is this head in ivory.
Documents
FAQ
Is a base included with the 2351B?
No. The head plugs into a separately ordered base such as the B501 or B300-6, or a sounder, relay or isolator base.
Which protocols does the 2351B support?
It supports Advanced Protocol and CLIP (Classic Loop Interface Protocol) mode and is point addressable up to 159 addresses.
Can the 2351B be used in duct detectors?
Yes. It is certified to UL 268A for duct applications and can be used inside DNR and DNRW duct smoke detector housings.
What is its operating voltage?
15 to 32 VDC from the signaling line circuit.
