Description Component series 3X Maximum operating pressure 400 bar Pressure ratings 25, 63, 100, 200 and 400 bar UL approval CCC approval (except for MT version) Features 4 pressure ratings Electrical connection with large cubic connector Micro switch with NC/NO contact function Potential-free switching of currents from 1 mA to 2 A Product description Hydro-electric pressure switches of type HED 5 are piston type pressure switches. They basically consist of housing (1), installation kit with piston (2), compression spring (3), adjustment element (4) and micro switch (5) The pressure to be monitored acts on the piston (2) The latter is supported by the spring plate (6) and acts against the continuously adjustable force of the compression spring (3). The spring plate (6) transmits the movement of the piston (2) onto the micro switch (5). This switches the electric circuit on or off, depending on the circuit set-up. Notice: In order to increase the life cycle, the pressure switch should be mounted with low vibrations and protected from hydraulic pressure surges. Type code 01 Piston type pressure switch HED5 02 Flange connection OH 03 Component series 30 ... 39 (version “G and “P” ) (30 ... 39: unchanged installation and connection dimensions) 3X 04 Pressure rating maximum 50 bar 50 Pressure rating maximum 100 bar 100 Pressure rating maximum 200 bar 200 Pressure rating maximum 350 bar 350 Electrical connection 05 Individual connection Without mating connector; connector DIN EN 175301-803 K14 1) Seal material 07 NBR seals no code FKM seals V Low-temperature seals (max. 315 bar) MT Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) 08 Further details in the plain text 1) Mating connectors, separate order, see accessories Technical data Type Component series 3X General Weight m kg 0.2 Installation position any Ambient temperature ranges (NBR seals) ϑ °C -30 … +50 Ambient temperature ranges (FKM seals) ϑ °C -20 … +50 Ambient temperature range (low-temperature seal) ϑ °C -40 … +50 Sine test DIN EN 60068-2-6:1996-05, 10...2000 Hz, max. 10 g, 10 double cycles Transport shock DIN EN 60068-2-27:1995-03, half-sine 15 g / 11 ms, 3 x in positive direction, 3 x in negative direction (a total of 6 single shocks per axis) Noise test DIN EN 60068-2-64: 1995-08, 20...2000 Hz, 14gRMS, 24 h Conformity/certification CE DIN EN 61058-1: 2002 / A2: 2008 DIN EN 60947-1: 2007 / A1: 2011 DIN EN 60947-5-1: 2004 / A1: 2009 DIN EN 60529: 1991 / A2: 2013 UL UL, 508 17th edition File No E223220 (up to 350 bar) CCC GB 14048.5-2008 Hydraulisch Pressure rating p bar 50 100 200 350 Operating pressure NBR/FKM seals, max. p bar 350 400 Pressure adjustment range (decreasing) p bar 5 … 50 10 … 100 15 … 200 25 … 350 Pressure differential per rotation 1) p bar ≈ 10 ≈ 17 ≈ 38 ≈ 60 Hydraulic fluid 1) see table below Hydraulic fluid temperature range (NBR seals) ϑ °C -30 … +80 Hydraulic fluid temperature range (FKM seals) ϑ °C -20 … +80 Hydraulic fluid tempera
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