Omron D4F DATASHEET
Small Safety Limit Switch
D4F
A Smaller Limit Switch than
Ever Previously Produced.
Ideal for Applications to
Small-scale Machinery and
Equipment
• A noticeable reduction to 1/4 the size of OMRON's
conventional model.
• High-sensitivity safety limit switch.
• Built-in switches with two- or four-contact construction
are available.
• Degree of protection: IP67 (EN60947-5-1)
• Patent and design pending.
Features
A Dramatic Reduction in Size
The volume is reduced to one quarter of the volume of our company's
conventional types of limit switches
(30 (W) × 18 (L) × 60 mm (H)).
Optimal for the downsizing of machinery and equipment.
High-sensitivity and Spacesaving
The conventional types of limit
switches with a direct opening
mechanism required 18 degrees for
a movement until operation because its direct opening point is long
(Our company's conventional types
of limit switches).
The D4F requires 6 degrees to respond.
On the table that allows machine
tools etc. to move at an increasing
speed, the moment the dog pushes
the actuator, the D4F responds.
With the development of smaller
versions of machines, the D4F
saves space and fits in a smaller
space.
Compared with conventional type
1
4
60 mm
18 mm
30 mm
18˚
6˚
Four-contact Construction is Available
D4F models of two-contact construction (1NC/1NO and 2NC) and
those of four-contact construction
(2NC/2NO and 4NC) are available.
The auxiliary contact can be used
for monitoring input of control circuits and indicator lighting.
<2NC/2NO>
Safety contact 11
Safety contact 21
Auxiliary contact
Auxiliary contact
33
43
Positioning in Steps of 9 Degrees
For a roller lever type of switch,
grooves are incised on the body and
the cam of the actuator, to allow positioning in steps of 9 degrees.
Zb
12
22
34
44
9
˚
9
˚
9
˚
9
˚
D4F
G-259D4F
Standards and EC Directives
• Conforms to the following EC Directives:
Machinery Directive
Low Voltage Directive
EN60204-1
EN1088
EN50047
EN81
EN115
GS-ET-15
JIS C 8201-5-1
Ordering Information
Model Number Legend
D4F-@@-@@
1 2 3 4
1. Built-in Switch
1: 1NC/1NO (slow-action)
2: 2NC (slow-action)
3: 2NC/2NO (slow-action)
4: 4NC (slow-action)
List of Models
2. Actuator
02: Roller plunger
(Metallic roller)
20: Roller lever
(Metallic lever, resin roller)
Approved Standards
Agency Standards File No.
TÜV Product
service
UL (See note 2.) UL508
Note: 1. Contact your Omron sales representative.
2. Approval has been obtained for CSA C22.2 No. 14
under UL.
3. Cable Length
1: 1 m
3: 3 m
5: 5 m
EN60947-5-1
(Direct opening: approved)
CSA C22.2 No.14
4. Pull-outing direction of cable
R: Horizontal
D: Vertical
(See note 1.)
E76675
Actuator Cable
Roller lever (Metallic lever, resin
roller)
Roller plunger
(Metallic roller)
length
1 m Horizontal
3 m Horizontal
5 m Horizontal
1 m Horizontal
3 m Horizontal
5 m Horizontal D4F-102-5R D4F-202-5R D4F-302-5R D4F-402-5R
Cable
direction
Vertical
Vertical
Vertical
Vertical
Vertical
Vertical D4F-102-5D D4F-202-5D D4F-302-5D D4F-402-5D
1NC/1NO
(slow-action)
D4F-120-1R D4F-220-1R D4F-320-1R D4F-420-1R
D4F-120-1D D4F-220-1D D4F-320-1D D4F-420-1D
D4F-120-3R D4F-220-3R D4F-320-3R D4F-420-3R
D4F-120-3D D4F-220-3D D4F-320-3D D4F-420-3D
D4F-120-5R D4F-220-5R D4F-320-5R D4F-420-5R
D4F-120-5D D4F-220-5D D4F-320-5D D4F-420-5D
D4F-102-1R D4F-202-1R D4F-302-1R D4F-402-1R
D4F-102-1D D4F-202-1D D4F-302-1D D4F-402-1D
D4F-102-3R D4F-202-3R D4F-302-3R D4F-402-3R
D4F-102-3D D4F-202-3D D4F-302-3D D4F-402-3D
Prefered items
Specifications
Approved Standard Ratings
TÜV (EN60947-5-1)
Item Utilization category AC-15 DC-13
Rated operating current (Ie) 0.75 A 0.27 A
Rated operating voltage (Ue) 240 V 250 V
Note: Use a 10-A fuse type gI or gG that conforms to IEC269 as a
short-circuit protection device.
Built-in switch
2NC
(slow-action)
2NC/2NO
(slow-action)
4NC
(slow-action)
UL/CSA (UL508, CSA C22.2 No. 14)
C300
Rated
voltage
120 VAC 2.5 A 15 A 1.5 A 1,800 VA 180 VA
240 VAC 7.5 A 0.75 A
Q300
Carry
current
Current Volt-amperes
Make Break Make Break
Rated
voltage
125 VDC 2.5 A 0.55 A 0.55 A 69 VA 69 VA
250 VDC 0.27 A 0.27 A
Carry
current
Current Volt-amperes
Make Break Make Break
G-260 Safety Sensors / Components
Characteristics
Degree of protection (See note 1.) IP67 (EN60947-5-1)
Durability (See note 2.) Mechanical: 10,000,000 times min.
Operating speed 1 mm/s to 0.5 m/s
Operating frequency Mechanical: 120 operations/minute
Insulation resistance 100 MΩ min. (at 500 VDC) between terminals of the same polarities, between terminals of dif-
Minimum applicable load (See note 4.) 4-mA resistive load at 24 VDC, 4 circuits (Level N reference value)
Contact resistance (See note 5.) 300 mΩ max. (initial value with 1-m cable), 500 mΩ max. (initial value with 3-m cable),
Dielectric strength Between terminals of same polarities: Uimp 2.5 kV (EN60947-5-1)
Conditional short-circuit current 100 A (EN60947-5-1)
Pollution degree (operating environment) 3 (EN60947-5-1)
Conventional free air thermal current (Ith) 2.5 A (EN60947-5-1)
Protection against electric shock Class I (with a ground wire)
Vibration resistance Malfunction 10 to 55 Hz, 0.75-mm single amplitude
Shock resistance Destruction
Malfunction
Ambient temperature Operating: −30°C to 70°C (with no icing)
Ambient humidity Operating: 95% max.
Cable UL2464 No. 22 AWG, finishing O.D.: 8.3 mm
Weight Approx. 190 g (D4F-102-1R, with 1-m cable)
Electrical: 1,000,000 times min. (4-mA resistive load at 24 VDC, 4 circuits)
150,000 times min. (1-A resistive load at 125 VAC, 2 circuits / 4-mA resistive load at 24 VDC,
2 circuits) (See note 3.)
Electrical: 30 operations/minute
ferent polarities, between current-carrying metal parts and grounds, and between each terminal and non-current carrying metal parts
700 mΩ max. (initial value with 5-m cable)
Between terminals of different polarities: Uimp 4 kV (EN60947-5-1)
Between current-carrying metal parts and grounds: Uimp 4 kV (EN60947-5-1)
Between each terminal and non-current carrying metal parts: Uimp 4 kV (EN60947-5-1)
2
2
min.
min.
1,000 m/s
300 m/s
Approx. 220 g (D4F-120-1R, with 1-m cable)
Note: 1. The degree of protection shown above is based on the test method specified in EN60947-5-1. Be sure to confirm in advance the sealing
performance under the actual operating environment and conditions.
2. Durability values are calculated at an operating temperature of 5°C to 35°C, and an operating humidity of 40% to 70%. Contact your
OMRON sales representative for more detailed information on other operating environments.
3. When the ambient temperature is 35°C or higher, do not apply 1 A at 125 VAC to more than two circuits.
4. The value will vary depending on factors such as the switching frequency, the ambient environment, and the reliability level.
Be sure to confirm correct operation with the actual load before application.
5. The contact resistance was measured with 0.1 A at 5 to 8 VDC with a fall-of-potential method.
Operating Characteristics
Slow-action (1NC/1NO, 2NC, 2NC/2NO, and 4NC)
Operating Characteristics
Operating force max.: OF (See note 1.) 5 N 12 N
Release force min.: RF (See note 2.) 0.5 N 1.5 N
Pretravel: PT1 (11-12 and 21-22)
: PT1 (31-32 and 41-42)
: PT2 (See note 3.)
Overtravel min.: OT 40° 3.2 mm
Operating position: OP (11-12 and 21-22)
: OP (31-32 and 41-42)
Total travel: TT (See note 3.) (55°) (4.5 mm)
Min. direct opening travel: DOT (See note 4.) 18° 1.8 mm
Min. direct opening force: DOF 20 N 20 N
Note: 1. The OF value is the maximum load that opens an NC contact (11-12, 21-22, 31-32, 41-42).
2. The RF value is the minimum load that closes an NC contact (11-12, 21-22, 31-32, 41-42).
3. The PT2 and TT values are reference values.
4. The D4F is used in accordance with EN81 and EN115 at a minimum DOT of 30° and 2.8 mm.
Model
6±3° (NC)
9±3° (NC)
(12°) (NO)
——
——
D4F-@20-@R
D4F-@20-@D
D4F-@02-@R
D4F-@02-@D
1 mm max. (NC)
1.3 mm max. (NC)
(1.2 mm) (NO)
29.4±1 mm
29±1 mm
D4F
G-261D4F
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