ASCO Model 140 (Edco SRA-6LC) Surge Protective Device
Low Voltage DC | 0.250 kA
The ASCO Model 140 SPDs are three terminal devices, two of which are connected across the signal inputs of the detector for differential mode protection, and the third is grounded to protect against common mode damage. The Model 140 SPDs are intended for all popular makes of loop detectors presently on the market.
