System Sensor

System Sensor - 2D51 - Photoelectronic Low-Profile Plug-In Detector for Special Applications.

Item: SYS2D51
MFG: 2D51
loading availability
Loading price
/ EA


2D51 4-wire Photoelectric Sensor Head
Photoelectronic Low-Profile Plug-In Detector For Special Applications. For Pendent Mount Applications Where Remote Testing Is Needed, The 2D51 Needs To Be Used with The DP4P120 and B210LP. Specifically For Use In No-Flow/Low-Flow Air-Handling Systems. The Twist-In/Twist-Out Head Allows Easy Removal From The Base For Quick Cleaning and Maintenance. The 2D51 Heads Can Be Locally Tested Using A Magnet or By Using The Test/Reset Push Button On The D4P120 Power Board.

California residents: see Proposition 65 Warning

Features and Specification

Weight 0.300000
Operating Temperature Range -4°F to 158°F (-20°C to 70°C)
Package Weight 0.300000
Package Height 2.000000
Power Source DC
Package Length 4.500000
Package Width 4.250000
Operating Temperature 14°F to 140°F (-10°C to 60°C)
Mounting Twist in twist out
Locking Pin No
Length 4.100000
Wire Gauge Up to 12 AWG
UPC 783863036880
Visual Alert No
Voltage 24/120 VAC
Warranty Offered Yes
UL Listed Yes
Width 4.100000
Type Smoke Detector
Test Button No
Terminal Connection Yes
Hush Button No
Standards UL, FM, CSFM
Sensor Type Photoelectric
UL Recognized No
Height 2.000000
Amps 200
Application Duct Smoke Detection
Audible Alert No
Batteries Included No
Batteries Required No
Battery Backup No
Brand System Sensor
Color White
Cubic Measurement 0.019500
CUL Listed No
EAN 0783863036880
Display No
Dimensional Weight 1.000000
Digital Readout No
Detection Method Photoelectric
Cycle/Hertz 60 Hz