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Multiple Limit Switch 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 • Used for the sequential control of a variety of engineering machines and belt conveyor lines. • Built-in oil filter shuts out oil and water. • Approved by EN, IEC (Ground terminal models only.) and CCC (Chinese standard). Ask your OMRON representative for information on approved models. • Ground terminal models bear the CE mark. Be sure to read the “Safety Precautions” on page 4 and the “Precautions for All Limit Switches”. Model Number Structure Ordering Information Model Number Legend List of Models Shape of box With flange Without flange 4. Scraper 1: NBR scraper 2: FPM scraper Bevel plunger 2. Actuator 1: Bevel plunger 2: Roller plunger 3. Switch Box 1: Flange switch box with two conduit holes on the side 2: Flange switch box with four conduit holes 4: Non-flange switch box with two conduit holes on the side 5: Non-flange switch box with four conduit holes Roller plunger (with a 6.8-dia. roller) 5. Contact None: 10 A (standard) A: 0.1 A (micro load) 6. Ground Terminal None: Without ground terminal E: With ground terminal Note: 1. Other than the above models, minute load models switching 0.1 A are available. When ordering a minute load model, add the suffix A to the model number (i.e., VB-2211A for example). 2. SC connectors can be connected to VB models. 3. Models with ground terminals are also available. When ordering a ground terminal model, add the suffix E to the model number (i.e., VB-2211E for example). * Since the actuator is incorporated into the monoblock switch, the actuator cannot be replaced. Replaceable Switch Unit Rating Standard load model

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Specifications Approved Standards Agency TÜV Rheinland Approved models Only models with ground terminals Ask your OMRON representative for information on approved models. Mechanical Durability * 300,000 operations min. (10 A at 250 VAC, resistive load) Operating speed Operating frequency Rated frequency Standard Model Insulation resistance Contact resistance Resistive load Rated voltage Dielectric strength Note: The above currents are steady-state currents. Inrush current Micro Load Ratings Between each terminal and noncurrent-carrying metal part Between terminals of different polarity...

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Structure and Nomenclature Structure (VB-2211) Contact Form Seal, gasket Switch assembly Dimensions and Operating Characteristics Switches The actual model numbers of each of the above VB models have a figure 2 to 6, which indicate the number of plungers. Bevel Plunger VB-@111 Bevel Plunger VB-@141 Cable drawing hole with 3 threads min. (G1/2) PT 8-dia. hard stainless steel plunger Cable drawing hole with 3 threads min. (G1/2) 8-dia. hard stainless steel plunger Roller Plunger VB-@241 Cable drawing hole with 3 threads min. (G1/2) PT 6.8 dia. x 3.7 Stainless steel roller Cable drawing hole...

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Safety Precautions Refer to Safety Precautions for All Limit Switches. Precautions for Safe Use Connection • Be sure to connect a fuse with a breaking current 1.5 to 2 times larger than the rated current to the Switch in series in order to protect the Switch from damage due to short-circuiting. • If the VB is used for EN ratings, use a gI or gG 10-A fuse approved by IEC269. Operation Make sure the notch of the plunger is not pressed into the scraper when operating the VB Multiple Limit Switch, otherwise chips or dust may penetrate into the VB Multiple Limit Switch. 3. Apply a torque of 5.88...

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Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER...

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