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IFM PK6521


IFM PK6521

We are IFM Product supplier in India

PK-250-SFG14-HCPKG/US/ /W – Pressure switch with intuitive switch point setting

  • Simple switch point setting by means of two setting rings allowing optimum reading
  • High long-term stability thanks to robust stainless steel measuring cell with high permissible pressure rating
  • Mechanical locking prevents inadvertent switch point manipulation
  • Lifespan of more than 50 million pressure cycles
  • For use in hydraulics, pneumatics, air-conditioning and refrigeration
Product characteristics
Number of inputs and outputsNumber of digital outputs: 2
Measuring range0…250 bar0…3625 psi
Process connectionthreaded connection G 1/4 external thread internal thread:M5
Applicationfor industrial applications
Medialiquids and gases
Medium temperature [°C]-25…80
Min. bursting pressure1000 bar14500 psi
Pressure rating400 bar5800 psi
Type of pressurerelative pressure
Electrical data
Operating voltage [V]9.6…32 DC
Current consumption [mA]< 25
Min. insulation resistance [MΩ]100; (500 V DC)
Protection classIII
Reverse polarity protectionyes
Inputs / outputs
Number of inputs and outputsNumber of digital outputs: 2
Total number of outputs2
Output signalswitching signal
Electrical designPNP
Number of digital outputs2
Output functioncomplementary
Max. voltage drop switching output DC [V]2
Permanent current rating of switching output DC [mA]500
Switching frequency DC [Hz]100
Short-circuit protectionyes
Type of short-circuit protectionpulsed
Overload protectionyes
Measuring/setting range
Measuring range0…250 bar0…3625 psi
Set point SP12.5…250 bar181…3625 psi
Reset point rP7.5…245 bar109…3553 psi
Accuracy / deviations
Switch point accuracy [% of the final value]< ± 2,5; (Setting accuracy)
Repeatability [% of the final value]< ± 0,5; (with temperature fluctuations < 10 K)
Characteristics deviation [% of the final value]< ± 1,5 (BFSL) / < ± 2,5 (LS); (BFSL = Best Fit Straight Line; LS = limit value setting)
Temperature drift per 10 K< ± 0.5
Software / programming
Adjustment of the switch pointsetting rings
Operating conditions
Ambient temperature [°C]-25…80
Storage temperature [°C]-40…100
ProtectionIP 67
Tests / approvals
EMCDIN EN 61000-6-2DIN EN 61000-6-3
Shock resistanceDIN IEC 68-2-2750 g (11 ms)
Vibration resistanceDIN IEC 68-2-620 g (10…2000 Hz)
MTTF [years]450
Pressure Equipment DirectiveSound engineering practice; can be used for group 2 fluids; group 1 fluids on request
Mechanical data
Weight [g]95
MaterialsPBT; PC; FKM; stainless steel (1.4404 / 316L)
Materials (wetted parts)stainless steel (1.4404 / 316L); FKM
Min. pressure cycles50 million
Tightening torque [Nm]25
Process connectionthreaded connection G 1/4 external thread internal thread:M5
Restrictor element integratedno (can be retrofitted)
Displays / operating elements
DisplayoperationLED, greenswitching statusLED, yellow
With scaleyes
Pack quantity1 pcs.
Electrical connection
ConnectionConnector: 1 x M12; coding: A
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — PK6521-00 — 29.04.2014
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IFM PK6521

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