2. Product Overview
  3. Rotary encoders / angle sensors
  4. HeavyDuty speed switches / monitors
  5. Mechanical speed switches
  6. FS 90
Technical data
Technical data - electrical ratings
Switching accuracy
  • ± 4 % (Δn = 2 rpm/s);
  • 20 % (Δn = 1500 rpm/s)
Switching deviation
  • ≤3 % (cw-ccw rotation)
Switching hysteresis
  • 40 % of switching speed
Switching outputs
  • 1 output, speed control
Output switching capacity
  • ≤6 A / 230 VAC
  • ≤1 A / 125 VDC
  • (EAC: <50 VAC / 75 VDC)
Minimum switching current
  • 50 mA
Interference immunity
  • EN 61000-6-2
Emitted interference
  • EN 61000-6-3
Approval
  • CE
Technical data - mechanical design
Size (flange)
  • ø115 mm
Shaft type
  • ø11 mm solid shaft
Flange
  • EURO flange B10
Protection EN 60529
  • IP 55
Speed (n)
  • ≤1.25 · ns
Range of switching speed (ns)
  • 850...4500 rpm (Δn = 2 rpm/s)
Operating torque
  • ≤2 Ncm
Rotor moment of inertia
  • 0.35 kgcm²
Admitted shaft load
  • ≤150 N axial
  • ≤250 N radial
Operating temperature
  • -40...+130 °C
Corrosion protection
  • IEC 60068-2-52 Salt mist
  • for ambient conditions C4 according to ISO 12944-2
Weight approx.
  • 900 g
Connection
  • Terminal box
Material
  • Housing: aluminium die-cast
  • Shaft: stainless steel
Downloads
Data sheet
Operating Manual
Declaration of conformity

Accessories
Mounting accessories
The selected altAttribute does not exist! Spring disk coupling K 35 (shaft ø6...12 mm)
  • High quality torsionally stiff and backlash free coupling
  • Compensating of mounting errors
  • Balanced torsional rigidity (torsional spring constant)
  • Protection against shaft currents with an insulated hub on non-drive end (ø11 H7)
  • Additional key possible
The selected altAttribute does not exist! Spring disk coupling K 50 (shaft ø11...16 mm)
  • High quality torsionally stiff and backlash free coupling
  • Compensating of mounting errors
  • Balanced torsional rigidity (torsional spring constant)
  • Protection against shaft currents with an insulated hub on non-drive end (ø11 H7)
  • Additional key possible
The selected altAttribute does not exist! Spring disk coupling K60 WD 11PF4 + 12PF4
For encoder with solid shaft

Article no.: 11064874
  • High quality torsionally stiff and backlash free coupling
  • Compensating of mounting errors
  • Balanced torsional rigidity (torsional spring constant)
  • Form-fit connection thanks to keyway
To the top