D4B-2A15N Omron, D4B-2A15N Datasheet - Page 8

• Manufacturer Part Number: D4B-2A15N
• Description: Safety Limit Switch
• Manufacturer: Omron

Specifications of D4B-2A15N

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Direct Opening Mechanism
1NO/1NC Contact (Snap-action)
Conforms to EN60947-5-1 Direct Opening
1NC/1NO Contact (Slow-action)
Contact Form
Note: Terminal numbers are according to EN50013; contact symbols are according to IEC60947-5-1.
Conforms to EN60947-5-1 Direct Opening
(Only NC contact has a direct opening mechanism.)
When contact welding occurs, the contacts are separated
from each other by the plunger being pushed in.
Contact spring
Return spring
D4B-@1@N
D4B-@5@N
D4B-@A@N
Model
1. When contact welding occurs.
Fixed contact (NC)
Movable contact
blade
B
1NC/1NO
(Snap-action)
1NC/1NO
(Slow-action)
2NC
(Slow-action)
A
Contact
Movable contact
13
11
11
23
11
21
Contact form
Safety cam
Plunger
Za
Zb
Zb
Fixed contact (NC)
Movable contact
Plunger
Fixed contact (NO)
(Only NC contact has a direct opening mechanism.)
2. When contacts are being pulled apart.
14
12
12
24
12
22
11-12
13-14
11-12
23-24
11-12
21-22
2NC Contact (Slow-action)
Conforms to EN60947-5-1 Direct Opening
(Both NC contacts have a direct opening mechanism.)
When contact welding occurs, the contacts are separated
from each other by the plunger being pushed in.
Contact spring
Return spring
Safety cam directly
pushes up the
movable contact
blade.
Diagrams
Stroke
Stroke
Stroke
3. When contacts are completely
ON
ON
ON
pulled apart.
Only NC contact 11-12 has a
certified direct opening
mechanism.
Terminal numbers 11-12 and
13-14 cannot be used as unlike
poles.
Only NC contact 11-12 has a
certified direct opening
mechanism.
Terminal numbers 11-12 or
23-24 can be used as unlike
poles.
Both NC contacts 11-12 and
21-22 have a certified direct
opening mechanism.
Terminal numbers 11-12 and
21-22 can be used as unlike
poles.
Explanation
Fixed contact (NC)
Movable contact
Plunger
D4B-@N
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