BRK 800 series

800 series

Manufacturer	BRK System Sensor {"label": "Manufacturer", "field": "BRK System Sensor"}
Introduced	1978 {"label": "Introduced", "field": "1978"}
Preceded by	BRK 700 series {"label": "Preceded by", "field": "BRK 700 series"}
Succeeded by	System Sensor 400 series {"label": "Succeeded by", "field": "System Sensor 400 series"}

{
    "rows": [],
    "title": "800 series",
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}

The BRK 800 series was a series of smoke alarms and conventional system smoke detectors. The system smoke detectors are also known under the System Sensor brand name.

History

The 800 series was introduced in 1978 with low-current 4-wire ionization smoke detectors. The 2851 was introduced in 1982 as an alternative to the 2751 without field-adjustable sensitivity, and the 2800 was introduced at the same time.

In 1984, the System Sensor division of BRK formed and became responsible for the 800 series system smoke detectors. Around this time, duct detectors were introduced.

Models

Ionization smoke detectors

Model	Wiring	Sensor polarity	Voltage	Replaced	Replaced by
806	4-wire	Bipolar	6 VDC		1806
812	4-wire	Bipolar	12 VDC		1812
824	4-wire	Bipolar	24 VDC		1824
1800	2-wire	Unipolar			1400
1806	4-wire	Unipolar	6 VDC	806	None
1812	4-wire	Unipolar	12 VDC	812	1412
1824	4-wire	Unipolar	24 VDC	824	1424
1851B	Plug-in	Unipolar		1751	1451
1851DH	Plug-in	Unipolar	24 VDC & 120 VAC		1451DH

Photoelectric smoke detectors

Model	Wiring	Voltage	Heat sensor?	Replaced	Replaced by
2800	2-wire		No		2400
2800TH	2-wire		Yes		2400TH
2806	4-wire	6 VDC	No		None
2806TH	4-wire	6 VDC	Yes		None
2812	4-wire	12 VDC	No		2412
2812TH	4-wire	12 VDC	Yes		2412TH
2824	4-wire	24 VDC	No		2424
2824TH	4-wire	24 VDC	Yes		2424TH
2851	Plug-in		No	2751	2851B
2851B	Plug-in		No	2851	2451
2851BTH	Plug-in		Yes	3751	2451TH
2851DH	Plug-in	24 VDC & 120 VAC	No		2451

Duct detectors

Model	Wiring	Voltage	Type	Replaced	Replaced by
DH1851AC	4-wire	120 VAC	Ionization		DH400ACDCI
DH1851DC	2-wire	24 VDC	Ionization		DH400I DH400ACDCI (with AR-10)
DH2851AC	4-wire	120 VAC	Photoelectric		DH400ACDCP
DH2851DC	2-wire	24 VDC	Photoelectric		DH400P DH400ACDCP (with AR-10)