Specifications

20
HE1G Grip Style Three-position Enabling Switches
Specifications
Applicable Standards
UL508 (UL listed), CSA C22.2, No. 14 (c-UL listed),
IEC/EN 60947-5-1 (TÜV/BG approval), GS-ET-22 (TÜV/BG approval),
Applicable Standards for Use
ISO 12100-1, -2, EN12100-1, -2, IEC 60204-1 / EN 60204-1, ISO11161 / prEN11161,
ISO 10218 / EN 775, ANSI/RIA R15.06, ANSI B11.19
Operating Temperature
Silicon rubber boot: –25 to 60°C (no freezing)
NBR/PVC Polyblend rubber boot: –10 to 60°C (no freezing)
Relative Humidity 45 to 85% (no condensation)
Storage Temperature –40 to +80°C (no freezing)
Pollution Degree 3
Contact Resistance 100 mΩ maximum (initial value)
Insulation Resistance
Between live and dead metal parts: 100 MΩ minimum (500V DC megger)
Between terminals of different pole: 100 MΩ minimum (500V DC megger)
Impulse Withstand Voltage 2.5 kV (momentary pushbuttons: 1.5kV)
Electric Shock Protection Class Class II (IEC 61140)
Operating Frequency 1,200 operations per hour
Mechanical Durability
Position 1 → 2 → 1: 1,000,000 operations minimum
Position 1 → 2 → 3 → 1: 100,000 operations minimum
Electrical Durability 100,000 operations minimum
Shock Resistance
Operating extremes: 150 m/s
2
Damage limits: 1,000 m/s
2
Vibration Resistance
Operating extremes: 5 to 55 Hz, amplitude 0.5 mm minimum
Damage limits: 16.7 Hz, amplitude 1.5 mm minimum
Applicable Wire 0.14 to 1.5 mm
2
(AWG16-25)
Applicable Cable Outside diameter ø7 to 13 mm
Conduit Port Size M20 (cable gland is supplied with the grip style enabling switch)
Terminal Tensile Strength 20N minimum
Terminal Screw Tightening Torque 0.5 to 0.6 N·m
Degree of Protection
HE1G-21SM: IP66 (IEC 60529)
HE1G-20ME: IP65 (IEC 60529)
HE1G-20MB: IP65 (IEC 60529)
HE1G-21SMB: IP65 (IEC 60529)
Conditional Short-circuit Current 50A (250V) (Use 250V/10A fast-blow fuse for short circuit protection.)
Direct Opening Force 90N minimum (3-position switch and monitor switch)
Operator Strength 500N minimum (when pressing the entire button surface)
Weight (approx.)
HE1G-21SM: 210g
HE1G-20ME: 250g
HE1G-20MB/HE1G-21SMB: 220g
Operating Characteristics
HE1G-20MB
HE1G-20ME
: contact ON (closed) : contact OFF (open)
Notes:
• 3-position switches operate with direct opening action when shifting from position 2 to position 3.
• For the output of the enabling device, use terminals 1-2 and 3-4.
• The above operation characteristics show when the center of the button is pressed. Pressing the edge of a button turns on one contact
earlier than the other contact, causing a delay in operation.
HE1G-21SM
HE1G-21SMB
1−2
5−6
3−4
1−2
5−6
3−4
1−2
5−6
3−4
Terminal No.
Position 1 Position 2 Position 3
Pressing
(position 1 to 2 to 3)
Releasing
(position 2 to 1)
Releasing
(position 3 to 1)
1
−
2
3
−
4
1
−
2
3
−
4
+
Emergency Stop Switch: 2NC contact
(terminal no. 5-6, 7-8)
1
−
2
3
−
4
Terminal No.
Position 1 Position 2 Position 3
Pressing
(position 1 to 2 to 3)
Releasing
(position 2 to 1)
Releasing
(position 3 to 1)
1−2
5−6
3−4
1−2
5−6
3−4
1−2
5−6
3−4
+
Momentary Pushbutton: 1NO contact (terminal no. 7-8)
Terminal No.
Position 1 Position 2 Position 3
Pressing
(position 1 to 2 to 3)
Releasing
(position 2 to 1)
Releasing
(position 3 to 1)
1−2
3−4
Pressing
(position 1 to 2 to 3)
Terminal No.
Position 1 Position 2 Position 3
1−2
3−4
+
Releasing
(position 2 to 1)
Momentary Pushbutton: 2NO contact (terminal no. 5-6, 7-8)
1−2
3−4
Releasing
(position 3 to 1)