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NAR 8258

NAR 8258 Railway Pressure Switch

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Railway

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Main features

Measuring accuracy 0.3 %
1 or 2 PNP
Parametrisation via smartphone App (Android)
Switching current up to 400 mA
Dielectricl strength: 710 VDC, meets EN 50155 (Railways)

About

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

More Information
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
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)
Measuring range	≤ 100 bar ≤ 600 bar < 1500 psi < 7500 psi