VB-2121 Omron, VB-2121 Datasheet - Page 7

• Manufacturer Part Number: VB-2121
• Description: SWITCH LIMIT SPDT 10A BEVL PLNGR
• Manufacturer: Omron
• Series: VBr
• Type: Limitr

Specifications of VB-2121

• Circuit: SPDT
• Switch Function: On-Mom
• Contact Rating @ Voltage: 10A @ 125VAC
• Actuator Type: Round (Pin Plunger)
• Mounting Type: Chassis Mount
• Termination Style: Screw Terminal
• Operating Force: 1471gf
• Actuator Style: Plunger
• Contact Voltage Ac Max: 250V
• Contact Voltage Dc Max: 250V
• Contact Current Ac Max: 10A
• Contact Current Dc Max: 600mA
• Switch Terminals: Screw
• Circuitry: SPDT
• Contact Current Max: 10A
• Contact Form: SPDT
• Contact Rating: 10 Amps at 125 VoltsAC, 250 VoltsAC
• Actuator: Plunger
• Ingress Protection: IP67
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: VB2121

Tightening Torque
1. Tighten each cover mounting screw to a torque of 1.18 to
2. Tighten each switch terminal screw to a torque of 0.20 to
Be sure to wire each solderless terminal correctly with a screw as
shown below.
3. Apply a torque of 5.88 to 6.86 N·m to tighten each mounting bolt
Mounting Holes
198
1.37 N·m.
0.49 N·m if the mounting screw is M3 in size.
of the casing if the mounting bolt is an Allen-head bolt that is M6
in size. Apply a torque of 8.04 to 9.22 N·m instead if the mounting
bolt is an Allen-head bolt that is M8 in size.
Mounting
Correct
With a Flange Switch Box
Without a Flange Switch Box
Multiple Limit Switch
Terminal screw
Four, 6.5-dia. or
M6 mounting
holes
Two, 6 dia.
protruding positions
Solderless terminal
-0.05
/
−0.15
Two, 8.5-dia. or
M8 mounting
holes
VB
Two, 8.5-dia. or
M8 mounting
holes
Incorrect
Wiring
Connect a cable with a thickness of 0.75 mm
Switch through the M3 round solderless terminals with insulation
covers.
Dimensions of Round Solderless Terminal
Wiring (Ground Terminal Models)
Note: Consult your OMRON representative for details on models with
Others
Carefully connect a conduit to each conduit hole and apply a seal or
tape to seal the conduit hole so that cuttings or other materials will
not penetrate through the conduit hole.
Use the SC Connector. Consult your OMRON representative for
details on SC Connectors.
Make sure that the position of the actuator that is traveling does not
exceed the overtravel (OT) position.
Make sure that the operating stroke is 70% to 100% of the specified
OT distance.
dz dia.: 3.2
D dia.:
B:
L:
F:
l:
3 to 6 plungers.
Ground terminal
1.9
5.2
16.4
5.8
8.0 (mm)
D dia.
d
Z
dia.
VB
2
to the VB Multiple Limit
SC connector
Built-in switch