Safety Limit Switch
D4B-@N
CSM_D4B-_N_DS_E_4_1
Snap-action contact with certified direct
opening operation certification .
Maintenance, seal, and resistance to
shock increased and direct opening
mechanism added.
Three-conduit switches and 2NC
switches are also available.
• 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).
• Models with gold-plated contacts added to the series to
enable handling microloads.
• Certified standards: UL, CSA, EN (TÜV), and CCC.
Be sure to read the
“Safety Precautions”
on page 14
and the
“Precautions for All Safety Limit Switches”
.
Note:
Contact your sales representative for details on models
with safety standard certification.
Model Number Structure
Model Number Legend
D4B-@@@@N
1 2
3
3. Actuator
00: Switch box (without head)
11: Roller lever (resin roller)
15: Roller lever (stainless steel roller)
1R:Roller lever
(conventional D4B-compatible)
16: Adjustable roller lever
17: Adjustable rod lever
70: Top plunger
71: Top roller plunger
81: Coil spring
87: Plastic rod
1. Conduit size
1: PG13.5 (1-conduit)
2: G1/2 (PF1/2) (1-conduit)
3: 1/2-14NPT (1-conduit)
4: M20 (1 conduit)
5: PG13.5 (3-conduit)
6: G1/2 (PF1/2) (3-conduit)
7: 1/2-14NPT (3-conduit)
8: M20 (3-conduit)
2. Built-in Switch
1: 1NC/1NO (snap-action)
3: 1NC/1NO (snap-action) gold-plated contacts
5: 1NC/1NO (slow-action)
*
6: 1NC/1NO (slow-action) gold-plated contacts
*
A: 2NC (slow-action)
B: 2NC (slow-action) gold-plated contacts
*
Excluding D4B-@@81N and D4B-@@87N models.
1
D4B-@N
Specifications
Standards and EC Directives
Conforms to the following EC Directives:
•
•
•
•
Machinery Directive
Low Voltage Directive
EN1088
EN50041
Certified Standards
Snap-action Models
Certification body
Standard
EN60947-5-1
(certified direct
opening mechanism)
GS-ET-15
File No.
Slow-action Models
Certification body
Standard
File No.
EN60947-5-1
(certified direct
J9851083
opening mechanism)
GS-ET-15
EN60947-5-1
(uncertified direct
J50005477
*
opening mechanism)
UL
CSA
CQC (CCC)
UL508
C22.2 No. 14
GB14048.5
E76675
LR45746
2003010305077612
J9851083
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
*
Adjustable roller lever, adjustable rod lever, coil spring, and plastic
rod models only.
*
Adjustable roller lever, adjustable rod lever, coil spring, and plastic
rod models 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
5
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