Enabling Switches
HE3B ø16mm Redundant Contact Switch
Key features:
• 3-position functionality (OFF – ON – OFF) as required for manual robotic control
• Provides a high level of safety based on human behavioral studies that determine
personnel may squeeze OR let go when presented with a panic situation
• Contacts will not re-close when released from Off
• Multiple contacts for enhanced reliability
• Snap acting contacts from position 1 to 2
• Available with or without rubber cover
Part Numbers
Style Part Numbers Appearance Color Part Number Material
Without Rubber Cover HE3B-M2
On (3 1) (per IEC60204-1; 9.2.5.8)
Accessories
Replacement Rubber Cover
Yellow HE9Z-D3Y
Black HE9Z-D3B
HE3B
Overview XW Series E-Stops Interlock Switches Enabling Switches Safety Control Relays Light Curtains AS-Interface Safety at Work
Silicon
Rubber
Yellow HE3B-M2PY
With Rubber
Cover
Black HE3B-M2PB
Gray HE3B-M2PN1
Specications
Conforming to Standards
Application Standards
Operating Temperature –25 to +60˚C (no freezing)
Operating Humidity 45 to 85% RH maximum (no condensation)
Storage Temperature –40 to +80˚C (no freezing)
Pollution Degree
Contact Resistance 50mΩ maximum
Insulation Resistance
Impulse Withstand Voltage 1.5kV
Operating Frequency 1200 operations/hour
Mechanical Life
UL508 (UL recognized), CSA C22.2, No. 14 (c-UL recognized)
IEC/EN 60947-5-1, IEC/EN 60947-5-8 (TÜV approval)
ISO 12100-1, -2, EN 12100-1, 2, IEC 60204-1 / EN 60204-1
ISO 11161 / prEN 11161, ISO 10218 / EN 775
ANSI/RIA R15.06, ANSI B11.19
2 (inside panel, terminal side)
3 (outside panel, operator side)
Between live & dead metal parts:
100MΩ maximum
Between positive & negative live parts:
100MΩ minimum
Position 1 2 1: 1,000,000 operations minimum
Position 1 2 3 1: 100,000 operations minimum
Gray HE9Z-D3N1
Lock Nut Tool
Appearance Part Number Material
MT-001 Metal
NBR/PVC
polyblend
1607302053
399
HE3B
Enabling Switches
Specications con’t
Electrical Life 100,000 operations minimum at rated load
Shock
Resistance
OverviewXW Series E-StopsInterlock SwitchesEnabling SwitchesSafety Control RelaysLight CurtainsAS-Interface Safety at Work
Vibration
Resistance
Terminal 0.110” quick connect / solder terminal
Recommended Wire Size 0.5mm2 maximum / 1 line (20AWG)
Solder Heat Resistance 310 ~ 350°C / 3 seconds maximum
Terminal Pulling Strength 20N minimum
Recommended Screw Torque 0.68 to 0.88Nm
Degree of Protection
Conditional Short-Circuit Current 50A (125V)
Recommended Short Circuit Protection 125V/10A fast blow fuse (IEC 60127-1)
Circuit Opening Force 500N minimum
Weight
Operating Extremes 150m/s2 (15 G)
Damage Limits 500m/s2 (50 G)
Operating Extremes 5 to 55Hz, applitude 0.5mm minimum
Damage Limits 16.7Hz, applitude 1.5mm minimum
with rubber cover: IP65,
without rubber cover: IP40 (IEC 60529)
without rubber cover - Approx. 14g
with rubber cover - Approx. 18g
Contact Ratings
Rated Insulation Voltage (Ui) 125V
Thermal Current (lth) 3A
Rated Operating Voltage (Ue) 30V 125V
Rated Operating
AC
Current (le)
DC
Contact Conguration 2 contacts (DPDT)
Minimum Applicable Load AC/DC5V 1mA reference
Resistive Load (AC-12) – 1A
Inductive Load (AC-15) – 0.7A
Resistive Load (DC-12) 1A 0.2A
Inductive Load (DC-13) 0.7A 0.1A
Circuit Diagrams
Terminal Circuit Diagrams (bottom view)
NC1NC2
NO2
NO1
C2
C1
1. 3 position switch: 2 contacts, terminal no. = between NO1-C1, between NO2-C2
2. Use between NO-C for OFF On OFF 3 position switch (NC is not used).
400
1607302053
Enabling Switches
+0.7
–0.2
+0.4
–0.3
Part
(position 3 to 1)
Position 1 Position 2 Position 3
Mounting Panel Thickness: 0.5 to 4
R1
R2
Mounting Panel Thickness: 0.5 to 4
Mounting Panel
Thickness 0.5 to 4
(Positioning Hole)
Operating Characteristics
Operating Characteristics (without rubber cover/pushing button part A and B)
HE3B
Overview XW Series E-Stops Interlock Switches Enabling Switches Safety Control Relays Light Curtains AS-Interface Safety at Work
B
Part A
Part A: Approx. 56N
Part B: Approx. 14N
Part A: Approx. 50N
Part B: Approx. 12N
Operating Force (reference value)
(without rubber boot)
(when part A or B is pressed)
: ON (closed)
: OFF (open)
Part A: Approx. 10N
Part B: Approx. 2N
Travel (mm)
Pressing
(position 1 to 2 to 3)
Releasing
(position 2 to 1)
Releasing
NO1-C1
NO2-C2
NO1-C1
NO2-C2
NO1-C1
NO2-C2
0Part A 0.8 1.0 1.7 1.9
0Part B 2.3 3.0 4.2 5.0
+0.7
–0.2
+0.7
–0.3
+0.7
–0.2
+0.7
–0.3
Using rubber boot will change the operating force depending on the operating temperature.
Dimensions (mm)
Without Rubber Cover With Rubber Cover
Locking Ring
2.5
3
Anti-rotation Ring
Solder Terminal
Width 2.8 × 0.5t
55
8
14.5
12.3
8.5
8.5 24.6
15
(33.1)
22.2
16
38.1
(51.2)
13.1
ø3
30
Anti-rotation Ring
Rubber Boot
Solder Terminal
Width 2.8 × 0.5t
Locking Ring
2.5
3
55
8
+0.7
–0.2
+0.7
–0.3
15.5
2
13
9.5
25.5
(34.5)
9
15
27.5
11.5
R1
(39)
25
20.5
39.514.5
(54)
All dimensions in mm.
Mounting Hole Layout
1. Recommended Lock Nut Torque: 0.68 to 0.88Nm.
2. Use a lock nut tool to screw on the lock nut (see page 399).
3. To retain the switches waterproof performance, do not penetrate the rubber cover.
4. Remove the rubber cover projection if you do not want a positioning hole. (Do not penetrate
the rubber cover).
1607302053
+0.2
0
ø16.2
+0.2
ø3.2
Depth: 2.5
30
Anti-rotation Ring
Locking Ring
0
(Note)
401
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