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Three-position Enabling Switches/Grip Style Three-position Enabling Switches
Safety Precautions
• The enabling switches have been designed for industrial pur-
poses. Use for residential, commercial, or lighting purposes
may cause unwanted electromagnetic disturbances in which
case the user may be required to take adequate mitigation
measures.
• In order to avoid electric shock or fire, turn the power off
before installation, removal, wiring, maintenance, or inspec-
tion of the enabling switch.
• Do not disassemble or modify the enabling switches. Also do
not disable the enabling function, otherwise failure or acci-
dent will occur.
• Provide sufficient strength to the mounting panel. Insufficient
strength of the mounting panel or excessive operating force
may damage the enabling switch, resulting in electric shock
or fire.
Instructions
Installation Instructions
HE2B/HE6B Enabling Switch with Rubber Boot
• The ridge on the bottom of rubber boot serves as a seal, and
waterproof characteristics are attained when the ridge is tightly
pressed to the mounting panel. When the mounting panel is bent
and the ridge cannot be pressed to the panel, add a reinforcing
rib to secure the boot to the mounting panel.
• The edge of rubber boot may stick out if excessive force is ap-
plied on the rubber boot. When such event is anticipated, it is
recom mended to embed the rubber boot in the mounting panel
as shown in the figure below.
HE2B
HE6B
Rubber boot embedded
Reinforcing Rib
HE2B/HE3B/HE5B/HE6B
Enabling Switch with Rubber Boot
• When an enabling switch with rubber boot is mounted in a
hermet ically-sealed control box, a large change in internal air
pressure may cause the rubber boot to inflate and deflate, affect-
ing the per formance of the enabling switch. Check periodically to
make sure that the enabling switch operates correctly.
HE3B Enabling Switch with Rubber Boot
• If the mounting panel is deformed, waterproof characteristics of
the enabling switch with rubber boot cannot be achieved. Keep
sufficient strength on the mounting panel.
• The rubber boot has a projection for positioning the enabling
switch onto the mounting panel. To maintain waterproof
character istics of the switch, do not drill through the anti-rotation
hole in the mounting panel. When not providing the hole, remove
the anti-rotation projection from the rubber boot. When removing
the pro jection, ensure not to make a hole in the rubber boot.
Sealing Ridge
Rubber boot embedded
Reinforcing Rib
• Use wires of the proper size to meet voltage and current
requirements, and solder the wires correctly according to the
wiring instruction described below. If soldering is incomplete,
the wire may heat during operation, causing a fire hazard.
• When using the enabling switch in a safety related part of a
control system, use the enabling switch properly in accor-
dance with the safety standards and regulations of the actual
machine, system, and application, of the country or region
where the enabling switch is used. Also, perform a risk as-
sessment before using the enabling switch.
• Do not disable the safety function of the enabling switch by
using tape, elastic band, or by disfiguring the rubber boot,
otherwise the loss of enabling switch function may cause
serious accidents.
• Secure the flange part when tight ening the locking ring so that
the enabling switch does not rotate. When the enabling switch
may rotate during operation, it is rec ommended to embed the
switch in the mounting panel as shown below.
Mounting Panel
Positioning
Projection
Anti-rotation Ring
Locking Ring
HE5B Enabling Switch with Rubber Boot
• If the mounting panel is deformed when mounting an enabling
switch with rubber boot, the normal waterproof characteristics
can not be assured. Keep sufficient strength on the mounting
panel.
• Do not press the rubber boot with excessive pressure in an
inap propriate direction, otherwise the waterproof function can be
dam aged.
Wiring Instructions
HE1B/HE2B/HE3B/HE5B/HE6B Enabling Switch
• Applicable wire size: 0.5 mm
2
• Solder the terminal at a temperature of 310 to 350°C within 3
sec onds using a soldering iron. Sn-Ag-Cu type is recommended
when using lead-free solder. Do not use flow or dip soldering.
• When soldering, take care not to touch the enabling switch with
the soldering iron. Also ensure that no tensile force is applied to
the terminal. Do not bend the terminal or apply excessive force
to the terminal.
• Use non-corrosive liquid rosin as soldering flux.
HE9Z-GSH51 Grip Style Enabling Switch Housing
• Recommended Tightening Torque
Parts for tightening
Torque
A Head and body
1.0 ± 0.2 N·m
B Body and cable gland 3.0 ± 0.3 N·m
C Cable gland
3.0 ± 0.3 N·m
Note: The recommended tight ening torques of B and C are for the supplied
cable gland. When using another cable gland, refer to the tightening
torque of the cable gland used.
Head
Body
A
maximum × 1 pc.
Cable Gland
B
C
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