6FR1-6 [ETC]
Industrial Control IC ; 工业控制IC\n
ETC 
Proximity Sensors
4/6FR Series
One-Piece Ferromagnetic Actuated Reed Proximity Switches
FR ORDER GUIDE
Catalog Listing
Heavy Duty
Cable
Sensitivity*
in. (mm)
MUST
Lead Length
Feet/mm
Wires
4FR1-6
6FR1-6
Operate Pt.
4FR2-25
6FR2-6
0.50/12,7
0.75/19,1
0.35/8,9
6.0/1,83
6.0/1,83
0.60/15,2
*Nominal for low carbon steel, 1 x 3 x 0.25 in. (25,4 x 76,2 x 6,35 mm).
Note: 25 and 50 ft. (7,6 and 15,2m) lead lengths can be supplied, but longer lead lengths are not necessarily
stock items.
6FR1-6: 589,5g (20.8 oz)
CHARACTERISTICS
FEATURES
ɀ Internal dry reed switch, ferrous metals
sensitive
Circuitry
Single pole, normally open
1 millisecond
Response Time
ɀ One piece construction aluminum
housing
ɀ Single pole, single throw, normally open
circuitry
ɀ May be used to directly drive low energy
circuits
ɀ Long mechanical life
ɀ Completely potted enclosure
ɀ Hermetically sealed contacts
ɀ No-touch detection of ferrous metals
ɀ Standard 1/2 inch conduit outlet
ɀ Can detect ferrous metal through
non-ferrous metal. Example: Steel
through stainless steel.
Repeatability (constant actuator
path, at stabilized temperature)
0.005 inch (0,13mm)
Power rating
AC (maximum)
DC (maximum)*
15 VA, 500 mA, 280 V RMS
15 watts, 500 mA, 400 V
Initial Contact Resistance
(closed circuit)
0.060 ohm max.
Switching Frequency
Dependent on size and speed of
target. Has been tested to 100 Hz,
but should be operated at less than
700-800 Hz resonant frequency.
Reed Bounce Time
0.5 millisecond max.
Operating Life
Max. Load
With 5FD1 relay load
100,000 operations min.
50 million operations
Temperature Range
–20° to +83°C (–4° to +181°F)
*DC rating with contact protection diode [N2071,
International Rect. 10D6, 600V. 1 amp or
equivalent] for increased life.
MOUNTING DIMENSIONS (For reference only)
B70
Honeywell ɀ MICRO SWITCH Sensing and Control ɀ1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ1-800-737-3360 Canada
Proximity Sensors
4/6FR Series
One-Piece Ferromagnetic Actuated Reed Proximity Switches
EFFECTS OF TEMPERATURE ON SENSITIVITY
For proper operation over the total temper-
ature range [with typical actuator (#4)], use
a minimum overtravel of 0.150 in. (3,8mm)
and minimum release travel of 0.250 in.
(6,35mm). Overtravel and release travel will
differ for smaller actuators.
MASS OR ACTUATOR SIZE VS SENSITIVITY
MAGNETIC ATTRACTION
The switch exerts a magnetic force on the
actuator. The actuator should be secured to
prevent its being drawn to the sensing face.
1. Do not subject the switch to the influence
of strong magnetic fields. External per-
manent magnets should be a minimum
of 6 inches (152mm) from the switch.
2. Ferromagnetic materials (other than the
actuator) should be at least 3 inches
(76,2mm) from the sensing face.
3. Arc suppresion networks must be used
in inductive circuits.
4. These switches should not be subjected
to severe shock.
5. Mount on solid support and protect from
vibration.
6. The switch may fail to release if adjacent
steelpartsaretooclose, orifquantitiesof
metallic chips are attracted to the sens-
ing face.
7. Do not subject reed switches to high in-
rush currents.
8. Each 4/6FR contains a glass reed switch
and a magnet, and should be handled
and applied accordingly.
Honeywell ɀ MICRO SWITCH Sensing and Control ɀ1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ1-800-737-3360 Canada
B71
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