D4B-3181N Sti (Scientific Technologies, Inc.), D4B-3181N Datasheet - Page 7

• Manufacturer Part Number: D4B-3181N
• Description: SWITCH, LIMIT, POSITIVE ACTION, WOBBLE STICK ACTUATOR, 150 OPERATING FORCE
• Manufacturer: Sti (Scientific Technologies, Inc.)
• Type: Limitr

Specifications of D4B-3181N

• Actuator Type: Wobble
• Contact Form: 1 NC/NO
• Current, Rating: 10 A
• Dielectric Strength: 25000 V
• Function: Safety
• Ip Rating: IP67
• Mounting Hole Size: 5.3 mm
• Mounting Type: Panel
• Number Of Poles: 1
• Operation: Snap Action
• Special Features: Coil Spring
• Termination: Screw
• Voltage, Rating: 600 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part

10,000
5,000
3,000
1,000
500
300
100
φ
Sealing properties improved by using a X ring and
bearing-free structure.
Models are available with a wide range of conduits. All
of the following sizes are available for both 1-conduit
and 3-conduit models: Pg13.5, G1/2, and 1/2-14NPT.
Note: NBR is used for rubber parts.
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.
480 VAC
250 VAC
125 VAC
Contact spring
Return spring
Switching current (A)
Operating frequencies:
30 times/min., cosφ = 1
(arrow)
Push and rotate
Fixed contact (NC)
Movable contact
Plunger
10,000
7,000
5,000
3,000
1,000
700
500
300
φ
500 VAC
Switching current (A)
Operating frequencies:
30 times/min., cosφ = 0.4
Conforms to EN60947-5-1 Direct Opening
(Only NC contact has a direct opening mechanism.)
250 VAC
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˚)
Nylon rollers used for superior resistance to wear.
The lever has an operating position indication plate
and grooves that mate every 90˚ to prevent slipping
between the rotary axis and lever.
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.
Ground screws are provided on all
models for increased safety.
Safety Limit Switch
D4B -N
AA-201