Atos X-MAP-320 Pressure Switch

Table
D250-4/E
Pressure switches type MAP with fixed switching pressure differential and microswitch with gold plated contacts
MAP are hydro-electric pressure switches with fixed switching pressure differential.
The mechanical microswitch with gold plated contacts grants high reliability and
long life service.
The microswitch changes its status when the pressure in the hydraulic circuit reaches the switching value set on the adjusting knob.The microswitch returns to the
original rest position when the pressure in the hydraulic circuit drops below the
nominal fixed switching pressure differential (hysteresis). The electric connector
provides both NC or NO contacts.
The pressure in the circuit operates the piston a acting against the adjustable
spring b ; once the pressure setting is reached, the piston f actuates the
microswitch c.
The pressure switching value is selectable by a graduated adjusting knob d.
a Servo-piston b Spring c Microswitch with gold plated contacts
d Adjusting knob with graduated scale
e Body f Switch actuator g Adjusting knob locking srew h Electric connector type 664
Clockwise rotation increases the setting pressure.
(included in the supply)
1
Max pressure: 630 bar
MODEL CODE
-
MAP
160
/
E
/
**
Fixed differential pressure switch Pressure range:
40 = 5 ÷ 40 bar 80 = 7÷ 80 bar
2
Series number
160 = 10 ÷ 160 bar 320 = 30 ÷ 320 bar 630 = 50 ÷ 630 bar
* Seals material, see section 2:
= NBR
PE = FKM
BT = HNBR
Options:
E = Common electric contact connected to pin 1, see section 3
MAIN CHARACTERISTICS, SEALS AND HYDRAULIC FLUID - for other fluids not included in below table, consult our technical office
Assembly position / location
Any position
Subplate surface finishing
Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)
CE to Low Voltage Directive 2014/35/EU RoHS Directive 2011/65/EU as last update by 2015/65/EU
REACH Regulation (EC) n°1907/2006 Standard = -30°C ÷ +70°C /PE option = -20°C ÷ +70°C
Compliance Ambient temperature
/BT option = -40°C ÷ +70°C
NBR seals (standard) = -20°C ÷ +60°C, with HFC hydraulic fluids = -20°C ÷ +50°C
FKM seals (/PE option)= -20°C ÷ +80°C
HNBR seals (/BT option)= -40°C ÷ +60°C, with HFC hydraulic fluids = -40°C ÷ +50°C
Seals, recommended fluid temperature Recommended viscosity
15÷100 mm2/s - max allowed range 2.8 ÷ 500 mm2/s
Fluid contamination class
ISO 4406 class 21/19/16 NAS 1638 class 10, in line filters of 25 μm (β25 >
_ 75 recommended)
Hydraulic fluid
Suitable seals type
Classification
Ref. Standard
NBR, FKM, HNBR
HL, HLP, HLPD, HVLP, HVLPD
DIN 51524
FKM
HFDU, HFDR
NBR, HNBR
HFC
Mineral oils Flame resistant without water Flame resistant with water
3
ISO 12922
CHARACTERISTICS AND WIRING OF INTERNAL MICROSWITCH 125 AC
Max current resistive load Max current inductive load (Cos ϕ = 0,4) Insulating resistance
[A] [A]
Supply voltage [V] 250 AC 30 DC
Rest position
Pressure operated position
250 DC
7
5
5
0,2
4
2
3
0,02
STD
≥100MΩ
Contact resistance
15 mΩ
Electrical life-expectancy
≥1.000.000 switchings
Mechanical life-expectancy
≥10.000.000 switchings
/E
D250