Safety Limit Switch
D4B-@N
CSM_D4B-_N_DS_E_10_4
Robust safety limit switch with metal housing
Slow-action and snap-action contact with
certified direct opening operation
certification
• Direct opening mechanism (NC contacts only) added to
enable opening contacts when faults occur, such as fused
contacts.
• Safety of lever settings ensured using a mechanism that
engages a gear between the operating position indicator plate
and the lever.
• Equipped with a mechanism that indicates the applicable
operating zone, as well as push-button switching to control left
and right motion.
• Head seal structure strengthened to improve seal properties
(TÜV: IEC IP67, UL: NEMA 3, 4, 4X, 6P, and 13).
• Wide standard operating temperature range:
–40 to 80°C (standard type).
• Certified standards: UL, CSA, EN (TÜV), and CCC.
Be sure to read the
“Safety Precautions”
on page 9.
Note:
Contact your sales representative for details on
models with safety standard certification.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Model Number Structure
Model Number Legend
D4B-@@@@N
1 2
3
3. Actuator
11: Roller lever (resin roller)
15: Roller lever (stainless steel roller)
16: Adjustable roller lever
17: Adjustable rod lever
70: Plunger
71: Roller plunger
1. Conduit size
2: G1/2 (PF1/2) (1-conduit)
4: M20 (1 conduit)
2. Built-in Switch
1: 1NC/1NO (snap-action)
5: 1NC/1NO (slow-action)
A: 2NC (slow-action)
1
D4B-@N
Ordering Information
Set Model Numbers
Consult with your OMRON representative when ordering any models that are not listed in this table.
Safety Limit Switches (with Direct Opening Mechanism)
1NC/1NO (Snap-action)
Actuator
Conduit openings
G1/2 (PF1/2)
M20
G1/2 (PF1/2)
M20
G1/2 (PF1/2)
M20
G1/2 (PF1/2)
M20
Model
D4B-2111N
D4B-4111N
D4B-2115N
D4B-4115N
D4B-2170N
D4B-4170N
D4B-2171N
D4B-4171N
Direct
opening
1NC/1NO (Slow-action)
Model
D4B-2511N
D4B-4511N
D4B-2515N
D4B-4515N
D4B-2570N
D4B-4570N
D4B-2571N
D4B-4571N
Direct
opening
2NC (Slow-action)
Model
D4B-2A11N
D4B-4A11N
D4B-2A15N
D4B-4A15N
D4B-2A70N
D4B-4A70N
D4B-2A71N
D4B-4A71N
Direct
opening
Roller lever
(resin roller)
Roller lever
(stainless steel
roller)
Plunger
Roller plunger
General-purpose Limit Switches
1NC/1NO (Snap-action)
Actuator
Conduit openings
G1/2 (PF1/2)
M20
G1/2 (PF1/2)
M20
Model
D4B-2116N
---
D4B-4116N
D4B-2117N
---
D4B-4117N
D4B-4517N
D4B-4516N
D4B-2517N
---
D4B-4A17N
Direct
opening
1NC/1NO (Slow-action)
Model
D4B-2516N
---
D4B-4A16N
D4B-2A17N
---
Direct
opening
2NC (Slow-action)
Model
D4B-2A16N
---
Direct
opening
Adjustable roller
lever
Adjustable rod
lever
Note:
Consult your OMRON representative for products.
2
D4B-@N
Specifications
Standards and EC Directives
Conforms to the following EC Directives:
•
•
•
•
•
Machinery Directive
Low Voltage Directive
EN50041
EN60204-1
EN ISO 14119
Certified Standards
Snap-action Models
Certification body
Standard
EN60947-5-1
(certified direct
opening mechanism)
GS-ET-15
File No.
Consult your
OMRON
representative for
details.
Slow-action Models
Certification body
Standard
EN60947-5-1
(certified direct
opening mechanism)
GS-ET-15
File No.
Consult your
OMRON
representative for
details.
TÜV Rheinland
TÜV Rheinland
EN60947-5-1
(uncertified direct
J50005477
*
opening mechanism)
UL
CSA
CQC (CCC)
UL508
C22.2 No. 14
GB14048.5
E76675
LR45746
2003010305077612
2003010305095927
UL
CSA
CQC (CCC)
EN60947-5-1
(uncertified direct
J50005477
*
opening mechanism)
UL508
C22.2 No. 14
GB14048.5
E76675
LR45746
2003010305077612
2003010305095927
*
Adjustable roller lever, adjustable rod lever only.
*
Adjustable roller lever, adjustable rod lever only.
Certified Standard Ratings
TÜV (EN60947-5-1), CCC (GB14048.5)
Item
Utilization category
AC-15
2A
400 V
Rated operating current (I
e
)
Rated operating voltage (U
e
)
Note:
As protection against short-circuiting, use either a
gI-type
or
gG-type
10 A fuse that conforms to IEC60269.
UL/CSA: (UL508, CSA C22.2 No. 14)
A600
Rated voltage
120 VAC
240 VAC
480 VAC
600 VAC
Carry current
60
30
15
12
Current (A)
Make
6
3
1.5
1.2
Break
7,200
Volt-amperes (VA)
Make
720
Break
10 A
3
D4B-@N
Ratings
Non-inductive load (A)
Rated voltage (V)
125 VAC
250
400
8 VDC
14
30
125
250
Note: 1.
2.
3.
4.
10
10
10
10
10
6
0.8
0.4
Resistive load
NC
NO
3
2
1.5
6
6
4
0.2
0.1
NC
1.5
1
0.8
3
3
3
0.2
0.1
Lamp load
NO
10
10
3
10
10
6
0.8
0.4
NC
Inductive load (A)
Inductive load
NO
5
3
1.5
6
6
4
0.2
0.1
NC
2.5
1.5
0.8
Motor load
NO
The above values are continuous currents.
Inductive loads have a power factor of 0.4 or higher (AC) or a time constant of 7 ms or lower (DC).
Lamp loads have a inrush current of 10 times the normal current.
Motor loads have a inrush current of 6 times the normal current.
30 A max.
Inrush current
Characteristics
Degree of protection
*1
Durability
*2
Operating speed
Operating frequency
Contact resistance
Minimum applicable load
*3
Rated insulation voltage (U
i
)
Rated frequency
Protection against electric shock
Pollution degree (operating environment)
Between terminals
of same polarity
Impulse withstand voltage Between terminals
(EN60947-5-1)
of different polarity
Mechanical
Electrical
Mechanical
Electrical
IP67 (EN60947-5-1)
30,000,000 operations min. (snap-action)
10,000,000 operations min. (slow-action)
500,000 operations min. (10 A resistive load at 250 VAC)
1 mm/s to 0.5 m/s
120 operations/minute
30 operations/minute
25 mΩ max.
180 mA resistive load at 5 VAC
(N-level reference value)
600 V (EN60947-5-1)
50/60 Hz
Class I (with ground terminal)
3 (EN60947-5-1)
2.5 kV (snap-action)/4 kV (slow-action)
4 kV (slow-action)
Between each
4 kV
terminal and ground
Insulation resistance
Contact gap
Vibration resistance
Shock resistance
Malfunction
Destruction
Malfunction
100 MΩ min. (at 500 VDC) between terminals of the same polarity and between each
terminal and non-current-carrying part
2
×
2 mm min. (slow-action)
2
×
0.5 mm min. (snap-action)
10 to 55 Hz, 0.75 mm single amplitude
1,000 m/s
2
min.
300 m/s
2
min.
100 A (EN60947-5-1)
20 A (EN60947-5-1)
–40 to 80°C (with no icing)
95% max.
Approx. 250 g
Conditional short-circuit current
Conventional enclosed thermal current (I
the
)
Ambient operating temperature
Ambient operating humidity
Weight
Note: 1.
The above values are initial values.
2.
The above values may vary depending on the model. Consult your OMRON sales representative for details.
*1.
The degree of protection is tested using the method specified by the standard (EN60947-5-1). Confirm that sealing properties are sufficient for
the operating conditions and environment beforehand.
*2.
The durability is for an ambient temperature of 5 to 35°C and ambient humidity of 40% to 70%. For further conditions, consult your OMRON
sales representative.
*3.
The above values may vary depending on switching frequency, environmental condition, and relativity level, consult your OMRON sales
representative.
4
D4B-@N
Engineering Data
Electrical Durability (Snap-action)
(Ambient temperature: 5 to 30°C, ambient humidity: 40 to 70%)
(cosφ = 1)
Operations (x 10
4
)
1,000
500
300
250 VAC
480 VAC
125 VAC
(cosφ = 0.4)
Operations (x 10
4
)
1,000
500
300
250 VAC
100
50
30
10
500 VAC
Operating frequencies:
30 times/min., cosφ = 1
Operating frequencies:
30 times/min., cosφ = 0.4
100
50
30
10
Switching current (A)
Switching current (A)
Structure and Nomenclature
Structure
Head
Can be connected in any of four directions (except for
Roller Plunger Models, which can be connected at either
of 2 directions that differ by 90°)
The roller lever switch employs a
system which allows
selection of operation on only one
side (left or right)
or both sides without the use of
any tools.
Roller
Nylon rollers used for superior resistance to wear.
Seal Ring
Sealing properties improved by using a X ring and
bearing-free structure.
Lever (Form Lock Structure)
The lever has an operating position indication plate
and grooves that mate every 90° to prevent slipping
between the rotary axis and lever.
The operating position indicator plate
Built-in Switch
Direct opening mechanism used for NC contact to
separate contact for faults, such as contact welding.
The heights of the NC and NO terminals are different
to enable easier wiring.
Conduit Opening
G1/2 or M20
Cover
Ground Screw
Ground screws are provided on all
models for increased safety.
5
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