Tamil Nadu Generation And Distribution Corporation Limited Tender

Material

Barksdale or equivalent make surge protection DP switches Model No: DPD1T-M3SS-Exi or equivalent Specifications: Working range: 0 – 0.7 bar, Adjusting range: Decreasing : 0 – 0.2 bar (0.03 – 2.76 psi), Increasing : 0.02 – 0.2 bar (0.27 – 3 psi) Approx. Dead band: 0.01 – 0.02 bar (0.09 – 0.24 psi) Max. Diff. Pressure (proof): 0.7 bar (10 psi), Accuracy: ± 0.5% of the adjustable range Switch, Switching Type: SPDT snap action; Contact: Silver Single or dual circuit, Rating: 10 amps @ 125/250 VAC; 3 amps @ 480 VAC;0.5 amps @ 125 VDC; 0.25 amps @ 250 VDC (Class A or H limit switch), Wetted Parts:- Diaphragm: 17-7 PH stainless steel, Seals: Viton®, Enclosure: Die-cast aluminum anodized, Other Parts: Nickel plated aluminum 300 series SS Electrical Connection: Screw terminals on covered terminal strip through 1/2” NPT conduit fitting, Enclosure Ratings: NEMA 4X, Pressure Connection: 1/8” NPT female high + low Temperature Range: Operating:-65°F to +165°F (-54°C to+74°C) Options: Factory preset at 30mbar