Bosch Rexroth HED 8 OH Series, Manual, Page: 6 / 16

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Bosch Rexroth HED 8 OH Series Manual Download Page 6

6/16

HED 8

| Pressure Switch

Bosch Rexroth AG

, RE 50061, edition: 2016-09

Characteristic curves:

Switching pressure differential

(measured with HLP46,

ϑ

Oil

= 40 ± 5 °C)

Notes:

The switching pressure differential may increase within
the course of the life cycle due to the deterioration of
the oil quality and the number of load cycles.

Pressure rating 50

Pressure rating 100

Pressure rating 200

Pressure rating 350

Pressure rating 630

Lower switching pressure in bar

→

Lower switching pressure in bar

→

Lower switching pressure in bar

→

Lower switching pressure in bar

→

Lower switching pressure in bar

→

Switc

hing pr

es

sur

e dif

fer

ential in bar

→

Switc

hing pr

es

sur

e dif

fer

ential in bar

→

Switc

hing pr

es

sur

e dif

fer

ential in bar

→

Switc

hing pr

es

sur

e dif

fer

ential in bar

→

Switc

hing pr

es

sur

e dif

fer

ential in bar

→

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Summary of Contents for Rexroth HED 8 OH Series

Page 1: ... with NC NO contact function Potential free switching of currents from 1 mA to 2 A UL approval for pressure ranges up to 350 bar Component series 2X Max operating pressure 630 bar RE 50061 Edition 2016 09 Replaces 06 15 TB0004 TB0040 Type HED 8 Contents Features 1 Ordering data 2 Function section symbol 3 Technical data 4 Characteristic curves Switching pressure differential 6 Dimensions 7 Install...

Page 2: ...thout scale with protective cap sealing S Spindle with scale without protective cap A 5 Spindle with scale with protective cap AS 5 lockable rotary knob with scale KS 4 5 Rotary knob with scale KW 5 Seal material 07 NBR seals no code FKM seals V Low temperature seal max 315 bar MT Observe compatibility of seals with hydraulic fluid used Other seals upon request 08 Further details in the plain text...

Page 3: ...on spring 3 The spring plate 6 transmits the move ment of the piston 2 onto the micro switch 5 and releases the latter when the set pressure is reached This switches the electric circuit on or off depending on the circuit set up The mechanical positive stop of the spring plate 6 protects the micro switch 5 in case of a sudden pressure drop from mechanical destruction and in case of overpressure pr...

Page 4: ...DIN EN 60068 2 64 1996 05 20 2000 Hz 10 30 min Conformity 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 Hydraulic fluid Classification Suitable sealing materials Standards Data sheet Mineral base oils HL HLP HLPD HVLP HVLPD NBR FKM low temperature seals DIN ...

Page 5: ... DC 12 Maximum current with K14 connector A 0 5 at 50 V DC inductive 0 2 at 125 V DC inductive 0 1 at 250 V DC inductive 2 0 at 250 V AC DC 22 DC 22 DC 22 AC 12 with K35 connector A 0 5 with 48 V DC inductive 2 0 with 48 V DC ohmic load DC 22 AC 12 Switching power Switching cycles Voltage U in V Ohmic load max in A Inductive load max in A with K14 connector 2 million 250 AC 2 A for 2 million circu...

Page 6: ...ity and the number of load cycles Pressure rating 50 Pressure rating 100 Pressure rating 200 Pressure rating 350 Pressure rating 630 Lower switching pressure in bar Lower switching pressure in bar Lower switching pressure in bar Lower switching pressure in bar Lower switching pressure in bar Switching pressure differential in bar Switching pressure differential in bar Switching pressure differenti...

Page 7: ...n 2016 09 Bosch Rexroth AG Required surface quality of the device contact surface for OH and OP designs Dimensions Type HED 8 K14 dimensions in mm For item explanations see page 9 Type HED 8 OH Type HED 8 OP Type HED 8 OA Connection dimensions ...

Page 8: ...G RE 50061 edition 2016 09 Required surface quality of the device contact surface for OH and OP designs Type HED 8 OH Type HED 8 OP Type HED 8 OA Connection dimensions Dimensions Type HED 8 K35 dimensions in mm For item explanations see page 9 ...

Page 9: ...parate order see page 16 15 Mating connector suitable for K35 angled separate order see page 16 16 Mating connector for K35 connection with cable separate order see page 16 17 Valve mounting screw separate order for type HED 8 OH 2 hexagon socket head cap screws metric ISO 4762 M5 x 55 10 9 flZn 240h L Friction coefficient µtotal 0 09 to 0 14 Tightening torque MA 6 0 5 Nm Material no R913000261 18...

Page 10: ...e mounting option of the pressure switch depends on the set up of the next stacking assembly subplate 2 Sandwich plate type HSZ 06A for use of the pressure switch as stacking element see page 12 3 Space required to remove the key 4 Space required to remove the mating connector Mating connector H1 H2 H3 K14 connection without circuitry 87 65 15 K14 connection with circuitry 92 70 15 K35 connection ...

Page 11: ... mounting option of the pressure switch depends on the set up of the next stacking assembly subplate 2 Sandwich plate type HSZ 10A for use of the pressure switch as stacking element see page 14 3 Space required to remove the key 4 Space required to remove the mating connector Mating connector H1 H2 H3 K14 connection without circuitry 100 65 15 K14 connection with circuitry 105 70 15 K35 connection...

Page 12: ...315 bar MT Observe compatibility of seals with hydraulic fluid used Other seals upon request 07 Further details in the plain text 01 02 03 04 05 06 08 HSZ 06 A 3X 00 Symbols variant no Sandwich plate size 6 component side plate side Pressure switch effective in channel Variant number Plate height Mass 40 5 mm 0 8 kg 608 609 601 120 mm 3 0 kg 627 628 620 Variant number 40 5 mm 0 8 kg 602 603 604 12...

Page 13: ...te contact surface Dimensions Sandwich plate size 6 for type HED 8 OH as vertical stacking element up to 350 bar dimensions in mm 1 Seal ring 2 Through hole for valve mounting 3 Screw on surface for pressure switch 4 Plate height 40 5 mm or 120 mm optional 5 Porting pattern according to ISO 4401 03 02 0 05 ...

Page 14: ...onnection dimensions 3X Seal material 06 NBR seals no code FKM seals V Low temperature seal max 315 bar MT Observe compatibility of seals with hydraulic fluid used Other seals upon request 07 Further details in the plain text 01 02 03 04 05 06 08 HSZ 10 A 3X 00 Symbols variant no Sandwich plate size 10 component side plate side Pressure switch effective in channel Variant number Mass 2 kg 601 602 ...

Page 15: ...wich plate size 10 for type HED 8 OH as vertical stacking element up to 350 bar dimensions in mm Required surface quality of the plate contact surface 1 Seal ring 2 Through hole for valve mounting 3 Screw on surface for pressure switch 4 Porting pattern according to ISO 4401 05 04 0 05 ...

Page 16: ...tching function Terminals 1 2 Contact opens in case of pressure increase Terminals 1 3 Contact closes in case of pressure increase Switching function Terminals 1 2 Contact opens in case of pressure increase Terminals 1 4 Contact closes in case of pressure increase For K35 connection For details and more mating connectors see data sheet 08006 Color Material number 4 pole M12 x 1 with screw connecti...

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