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Please use the table below to identify the new ProLoop loop detector that replaces your existing LD20 or LD40 loop detector, clicking on the ProLoop part number will open a new window with the details of the new new version.

LD Series ProLoop Description
LD20.0.A4.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.0.B3.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.0.B3.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.0.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD20.0.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.0.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.0.N2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.0.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.A1.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.A1.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.A2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.A3.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.A3.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.B3.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.B3.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.B4.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.B4.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.B5.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.H6.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.H6.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD20.1.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.N1.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.N1.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.1.N2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.1.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.2.A1.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.2.B4.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.2.B5.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.2.B5.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.2.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.2.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.2.N1.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD20.2.N2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.2.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.3.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.3.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD20.X.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD20.X.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.0.B3.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.0.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.0.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.0.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.1.A1.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.1.A5.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.1.H6.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.1.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD21.1.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.1.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.1.N1.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.1.N2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.2.A2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.2.B3.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.2.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.2.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.2.N2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.2.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.3.B4.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.3.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.3.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD21.X.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD21.X.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD22.0.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD22.0.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD22.0.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD22.1.B3.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD22.1.H6.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD22.1.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD22.1.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD22.1.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD22.1.N2.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD22.1.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD22.2.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD22.2.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD22.2.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD23.0.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD23.0.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD23.1.A3.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD23.1.B3.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD23.1.H9.115AC 224481 ProLoop 11 pin base, 1-loop detector, 2 relays, 115Vac
LD23.1.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD23.1.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD23.2.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD23.3.B3.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD23.3.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD23.3.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD24.0.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD24.0.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD24.1.H9.230AC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD24.1.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD24.2.H9.230VAC 224482 ProLoop 11 pin base, 1-loop detector, 2 relays, 230Vac
LD24.2.H9.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD24.2.N2.24ADC 224480 ProLoop 11 pin base, 1-loop detector, 2 relays, 24Vac/dc
LD40.0.B3.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.0.B3.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.0.H9.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.0.H9.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.0.N2.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.0.N5.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.0.N6.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.A1.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.A2.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.B3.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.1.B3.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.B4.115AC 224484 ProLoop 11 pin base, 2-loop detector, 2 relays, 115Vac
LD40.1.B4.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.1.B4.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.B5.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.1.H6.115AC 224484 ProLoop 11 pin base, 2-loop detector, 2 relays, 115Vac
LD40.1.H6.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.H9.115AC 224484 ProLoop 11 pin base, 2-loop detector, 2 relays, 115Vac
LD40.1.H9.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.1.H9.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.N1.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.1.N1.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.1.N2.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.2.A1.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.2.B3.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.2.B4.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.2.H9.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.2.H9.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.2.N2.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.2.N2.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.3.B4.115AC 224484 ProLoop 11 pin base, 2-loop detector, 2 relays, 115Vac
LD40.3.H9.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.3.H9.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.4.R0.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.4.R0.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc
LD40.X.H9.230AC 224485 ProLoop 11 pin base, 2-loop detector, 2 relays, 230Vac
LD40.X.H9.24ADC 224483 ProLoop 11 pin base, 2-loop detector, 2 relays, 24Vac/dc

If you cannot find your unit in the list above, please contact us for assistance.