ABB VM4 Contactor Interlock for use with AF09 to AF38 Series

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RS Stock No.:
711-6411
Mfr. Part No.:
1SBN030105T1000 VM4
Manufacturer:
ABB
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Brand

ABB

Accessory Type

Interlock

Product Type

Contactor Interlock

For Use With

AF09 to AF38 Series

Standards/Approvals

No

Series

VM4

ABB Mechanical Interlock Unit, bag 10 piece, 180X120X20mm - VM4


The is a mechanical interlock unit designed for the interlocking side-by-side without additional width of two 3-pole or 4-pole AF09 to AF38, AFC09 to AFC38, and AFS0 AFS38 contactors. When mounted between two contactors, the VM4 mechanical interlock unit prevents one of the contactors from closing as long as the other contactor is closed. The mechanical interlock unit VM4 includes 2 fixing clips (BB4)

Features & Benefits


• Occupies minimal space, making it ideal for tight installations

• By mechanically preventing simultaneous closure of adjacent contactors, it enhances safety and prevents accidental short circuits

• The unit includes 2 fixing clips (BB4) for straightforward mounting between compatible contactors

• Suitable for use with AF09 to AF38 series contactors, including various pole configurations

Applications


• Use the VM4 to interlock motor contactors in control panels, ensuring proper sequencing and preventing unintended parallel operation

• Install it in machinery control circuits to prevent simultaneous activation of multiple loads

• Use in heating, ventilation, and air conditioning systems to interlock contactors for compressors, fans, and pumps

Can I use the VM4 with any contactor?


It is specifically designed for use with AF09 to AF38 series contactors.

How does the VM4 prevent simultaneous closure?


When mounted between two contactors, it mechanically ensures that one contactor remains open while the other is closed.

Is it suitable for motor control applications?


Yes, the VM4 is commonly used in motor control panels to prevent parallel activation of motor contactors.

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