COMPACT SOLENOID VALVE（HD1N） SIZE 025■Features
HD1 N Series (for 7 MPa)
1. Compact
2. Dust- and water-proof of highest level (IP67), thanks to use of M12-4 pin connector
3. Since it operates at low currency, it can be connected directly to the sequencer and iscompatible with a device net.
4. Lamp and grounding terminal are standard equipment.
5. Surge killer is standard equipment.

Cautions on use

Please read the Operating Manual
carefully to ensure correct usage.

● The piping must be arranged so that the R port is always filled with fluid to make the mostof the features of the oil-immersed type valve.
● When installing a no-spring type valve, install it so as to set the spool horizontally.
● Finish the mounting faces to the same quality as the valve faces (3.2 μmRz).
● Using a valve with the R port plugged can cause operation failure.
● When it is retained without energizing the solenoid on a detent type, the back pressuremust be 2 MPa or less.

SOLENOID VALVES / DIRECTIONAL CONTROL VALVES■Description of the model designation

HD1Nｰ3WｰBCAｰ025ｰA1（A）
Construction category
HD1N compact solenoid valve 7 MPa

Optional function (DC type only)
For wire-saving type (with M12-4 pin connector)
A: Load side –COMMON right side
B: Load side –COMMON left side
C: Load side +COMMON right side
D: Load side +COMMON left side
With diode
S: Load side -COMMON
T: Load side +COMMON
Voltage indication
A1: AC100V
A2: AC200V
D2: DC24V

Switching function
3W : Spring center type
2WD: No spring detent type
2S : Spring offset type
Spool typeSee Model column.
Nominal size
025: Conforming to ISO4401-03-02-094■Valve specifications
Max. operating pressure（MPa）

Max. flow rate（L/min）Permissible T port back pressure （MPa）
Operation frequency(time/s)

Permissible variable voltage range（V）30
7 (2) (NOTE 1)
2 or less
Rated voltage ±10%
Complying with ISO11218ｰClass 12 (NAS1638 Class 12)

Hydraulic fluid contamination

ISO VG22, 32, 46

Hydraulic fluid (recommended)
Viscosity

7IEC 529 IP65 (IP67) (NOTE 2)

Protection structure class（㎜2/s）

15 to 400

Fluid temperature（℃）

0 to 65

Ambient temperature（℃）−10 to 50（N·m）

6 to 8（㎏）3W, 2WD: 1.5

Proper tightening torqueMassC

2S: 1.2

NOTE 1: Value in ( ) is for the no spring detent type.
NOTE 2: The protection structure class (IP67) is for M12-4 pin connector type.

C−21

■Solenoid specifications
SLH1Nｰ025ｰA1

Solenoid model

SLH1Nｰ025ｰA2

SLH1Nｰ025ｰD2

Rated voltage （V）

AC100

AC110

AC200

AC220

DC24（Hz）

50/60

60

50/60

60

−Starting current （A）

0.92/0.82

0.90

0.46/0.40

0.44−Holding current （A）

0.26/0.20

0.24

0.12/0.10

0.11

0.42AFrequency■Terminal box● Size 025B DC type

Solenoid modelC

Terminal Box

Rated voltage

Double Solenoid Type

Single Solenoid TypeDC24V

TBH1Nｰ025ｰD1W

TBH1Nｰ025ｰD1S

HD1 Nｰ***ｰ***ｰ025ｰD2 S

DC24V

TBH1Nｰ025ｰD1WｰS

TBH1Nｰ025ｰD1SｰS

HD1 Nｰ***ｰ***ｰ025ｰD2 T

DC24V

TBH1Nｰ025ｰD1WｰT

TBH1Nｰ025ｰD1SｰT

HD1 Nｰ***ｰ***ｰ025ｰD2 A

DC24V

TBH3ｰ025CｰD1W-MA

TBH3ｰ025CｰD1S-MA

HD1 Nｰ***ｰ***ｰ025ｰD2 B

DC24V

TBH3ｰ025CｰD1W-MB

TBH3ｰ025CｰD1S-MB

HD1 Nｰ***ｰ***ｰ025ｰD2 C

DC24V

TBH3ｰ025CｰD1W-MC

TBH3ｰ025CｰD1S-MC

HD1 Nｰ***ｰ***ｰ025ｰD2 D

DC24V

TBH3ｰ025CｰD1W-MD

TBH3ｰ025CｰD1S-MD● Size 025B AC type

Solenoid

Rated voltage

A1
HD1 Nｰ***ｰ***ｰ025ｰ A2

AC100V
AC100V

Terminal Box
Double Solenoid Type

Single Solenoid TypeTBH1Nｰ025ｰA1W

TBH1Nｰ025BｰA1S■Spool types
Switching function

Spring Center

No Spring Detent

Spring Offset

Model

HD1Nｰ3Wｰ*ｰ025ｰ*

HD1Nｰ2WDｰ*ｰ025ｰ*

HD1Nｰ2Sｰ*ｰ025ｰ*

a2WDｰBcAba2SｰBcAbaPTPTPT

Spool typeAB

ABAB3WｰBCAAB

3WｰBGAabPTNOTE: When a model not listed above is necessary, consult us separately.

■Valve performance
Operation Limit (Dynamic Viscosity: 33 ㎜2/sec)
The performance will vary slightly depending on the circuit conditions and the operation conditions (voltage, pressure, flow, viscosity, etc.).
The performance curves show values including the surge pressure and surge flow rate.
（L/min）３５①

３０２５Flow

SOLENOID VALVES / DIRECTIONAL CONTROL VALVESHD1 Nｰ***ｰ***ｰ025ｰD2Circuit②③１５１０５１２３４５Pressure（MPa）

C−22ABPT

a２０００

Cylinder circuit

６７A port blockedbABPTa

B port blockedbABPTabSpool TypeACDCACDCAC

DC3WｰBCA①①①②①②3WｰBGA①①①②①②2WDｰBcA

①

①

①①①

①2SｰBcA

①

①

①

①

NOTE: Where used out of the operating range, consult us.

③（NOTE） ③（NOTE）

■Outside dimensions
Standard typeHD1Nｰ*ｰ*ｰ025ｰD2

HD1Nｰ*ｰ*ｰ025ｰD2S

HD1Nｰ*ｰ*ｰ025ｰD2T

Wiring hole 2 G1/29ｰφ450.75

4ｰJIS B 2401ｰ1AP9 O-ring

4ｰφ5.

5.1

8.5

HD1Nｰ*ｰ*ｰ025ｰA*B

48

31.75

25.9

AP

15.5

31T

25

12.7
21.5

92.3

SOLENOID VALVES / DIRECTIONAL CONTROL VALVES

12.5

C73

30.2
40.5

46.1

46.1

68

Solenoid installation/removal dimension 240.6

Solenoid installation/removal dimension 167.8

160.2
93.7

5.2

93.7

225.2

127.6

M12-4 pin connector typeHD1Nｰ*ｰ*ｰ025ｰD2B

HD1Nｰ*ｰ*ｰ025ｰD2C

HD1Nｰ*ｰ*ｰ025ｰD2D9ｰφ45

Wiring connector M12×1.0

0.75

4ｰJIS B 2401ｰ1AP9 O-ring

4ｰφ5.

5.1

8.5

HD1Nｰ*ｰ*ｰ025ｰD2AB

48

31.75

25.9

P

15.5

31TOYOOKITA

25

12.7

12.5
46.1

21.5

68.5

30.2

80.7

40.5
6846.1
Solenoid installation/removal dimension 167.8

Solenoid installation/removal dimension 240.6

127.6

160.2

49

10102249●For the sub-plate

SHD025ｰ**T1A, refer to page L-2.
SHD025ｰ**T3A, refer to page L-6.

C−23■Connecting method
Terminal box

M12-4 pin connector arrangement

Power supply terminal [SOL b] (M3)

Lamp (SOL a)

Lamp (SOL b)

TOPDouble solenoid

Power supply terminal [SOL a] (M3)

Right take-out

Short-circuit jumper
Power supply common terminal (M3)

Grounding terminal (M3)C

Left take-out

BOTTOMTOP

Power supply terminal [SOL a] (M3)

SOLENOID VALVES / DIRECTIONAL CONTROL VALVES

Single solenoid

Lamp (SOL a)

Power supply terminal [SOL a] (M3)

Grounding terminal (M3)

BOTTOM

Electric Circuit【AC】【DC】＋（−）
Ｒ

Ｒ

Ｂ

AＣＳＯＬ

Ｂ

ＤＣ

ＳＯＬ

Lamp

Lamp−（＋）

【With DC M12-4 Pin Connector】Load side –COM

【With DC M12-4 Pin Connector】Load side +COM

Output Unit (PNP)

Output Unit (NPN)【With DC Diode】Load side –COM

【With DC Diode】Load side +COM＋−ＲＤＣ
Short-circuit−
jumper sideC−24Lamp

ＤＢＲＳＯＬ

ＤＣShort-circuit＋jumper sideLamp

ＤＢＳＯＬ

■Mounting bolts
Mounting bolts are not supplied with valves and should be orderedseparately.
Since the mounting bolt seat height of new type valves differs fromthat of conventional valves, please order the adjusting collars or
mounting bolts for a new type valve when replacing a valve in acircuit where stack valves are used.
Where HD*-*-*-025B-WY* is used, it is not necessary to purchasemounting bolts.

Collar
For replacing conventionalvalve

８２２Collar model: HH-00200(4 bolts)

Mounting Bolts for the HY-TEGRA SystemHexagon socket head bolt

Stud bolt

No. of Stack Levels

Bolt TypeNo. of Stack Levels

1JIB B 1176 M5×301──

2

HKSｰNAｰ5×65

2

HKSｰNCｰ5×71

3

HKSｰNAｰ5×100

3HKSｰNCｰ5×106

4

HKSｰNAｰ5×135

4HKSｰNCｰ5×141

5HKSｰNAｰ5×170

5HKSｰNCｰ5×176

Bolt TypeCSOLENOID VALVES / DIRECTIONAL CONTROL VALVES

1 Use mounting bolts of the strength category class 12.9.
2 Stud bolts are supplied with nuts.

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