Trafag NAR 8258 Railway Pressure SwitchIndonesia Industrial Parts

They are available in many different designs to suit pressure and electrical connections, measuring procedures, electrical output signals and certifications (CE, EX, rail and ship).

About Pressure Transmitters

Pressure transmitters are electronic pressure gauges and are used to measure and monitor pressure. The term pressure transmitter is also often used for pressure transducers or pressure sensors. However, this is not a synonym, since the term pressure sensor in the narrower sense only describes a part of the pressure transmitter.

Description of Trafag NAR 8258 Railway Pressure Switch

The pressure switch NAR 8258 with 1 or 2 switching outputs and increased accuracy of 0.3 % was specifically designed for railway vehicles (EN 50155) and has a long-term stable thin-film-on-steel sensor cell. The wide temperature range from -40°C to +85°C and the triple overpressure protection make the NAR 8258 the ideal choice for railway vehicles in rough environmental conditions.

Technical Data of Trafag NAR 8258

Product code	8258
Name	NAR
Designation	Railway Pressure Switch
Product category	Electronic pressure switches
Measuring range	0 … 6 to 0 … 600 bar 0 … 100 to 0 … 7500 psi
Measuring principle	Thin-film-on-steel
Applications	Railways
Approval/conformity	EN 50155 (Railway) EN 45545-2 (Fire protection) EN 61373 (Shock, vibration) EN 50121-3-2 (EMC)
Accuracy @ 25°C typ.	± 0.3 % FS typ.
Output signal	Switching output 1 or 2 PNP
Electrical connections	M12x1
Pressure connections	G1/4″ m; G1/4″ m with integrated damping; G1/4″ m (Manometer); 1/4″NPT m; 7/16″-20UNF m, SAE4 (J1926); R1/4″ m, DIN2999; M10x1 m, DIN EN ISO 6149-2; M12x1 m, DIN EN ISO 6149-2; M12x1.25 m, DIN EN ISO 6149-2; M12x1.5 m, DIN EN ISO 9974-2
Media temperature	–40°C … +85°C
Ambient temperature	–40°C … +85°C (EN 50155: OT6)