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VB

Multiple Limit Switch

VB

A New Monoblock Multiple Limit Switch Incorporating a Head Box with a Tough Head and Ensuring High Sealing Performance and a Mechanical Durability of 5,000,000 Operations

Ratings

Standard Model

Rated voltage Resistive load
NC NO
125 VAC
250 VAC
10 A
10 A
125 VDC
250 VDC
0.6 A
0.3 A

Note: The above currents are steady-state currents.

Inrush current NC 24 A max.
NO 24 A max.

Micro Load Ratings

Rated voltage Resistive load
125 VAC 0.1 A
8 VDC
30 VDC

Characteristics

Degree of protection IP67
Durability * Mechanical 5,000,000 operations min.
Electrical 300,000 operations min. (10 A at 250 VAC, resistive load)
Operating speed 0.1 mm to 0.5 m/s
Operating
frequency
Mechanical 120 operations min.
Electrical 30 operations min.
Rated frequency 50/60 Hz (AC)
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact resistance 15 mΩ max. (initial value)
Dielectric
strength
Between terminals of same polarity 1,000 VAC/Uimp 4,000 VAC
Between current-carrying metal parts
and ground
1,500 VAC/Uimp 4,000 VAC
Between each terminal and non-
current-carrying metal part
1,500 VAC/Uimp 4,000 VAC
Between terminals of different polarity Uimp 4 kV (EN60947-5-1)
Rated insulation voltage (Ui) 300 VAC (EN60947-5-1)
Switching overvoltage 1,000 V max. (EN60947-5-1)
Pollution degree (operating environment) 3 (EN60947-5-1)
Short-circuit protective device (SCPD) 10 A fuse type gG or gI (IEC269)
Conditional short-circuit current 100 A (EN60947-5-1)
Conventional enclosed thermal current (Ithe) 5 A, 0.5 A (EN60947-5-1)
Protection against electric shock Insulation class I (Use the grounding terminal or ground on the machine side.)
Vibration
resistance
Malfunction 10 to 55 Hz, 1.5-mm double amplitude
Shock
resistance
Destruction 1,000 m/s2 min.
Malfunction 200 m/s2 min.
Ambient operating temperature -10°C to 80°C (with no icing)
Ambient operating humidity 35% to 95%
Weight Approx. 580 g (in the case of VB-4211)

Note: The above values are initial values.
* The values are calculated at an operating temperature of 5°C to 35°C, and an operating humidity of 40% to 70%.
  Contact your OMRON sales representative for more detailed information on other operating environments.