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Siemens KAD39-LA71MH4 Auxiliary Contactor - 2NO+2NC

Name: Siemens KAD39-LA71MH4
Brand: Siemens
SKU: KAD39-LA71MH4
Availability: InStock

Siemens KAD39-LA71MH4 2NO+2NC auxiliary contactor.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part numberKAD39-LA71MH4

Contacts 2 NO, 2 NC

Coil Voltage Specify (e.g., 24VDC, 120VAC)

Mounting Attaches to Siemens Contactors

Series 3-Phase Contactors Accessories

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2 Normally Open contacts 2 Normally Closed contacts Easy attachment to compatible contactors Expands control functions Reliable Siemens quality

Product description

The Siemens KAD39-LA71MH4 is a versatile auxiliary contactor designed to expand the control capabilities of main contactors. It features a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing essential flexibility for complex control circuits. This unit is built with Siemens' renowned reliability.

This auxiliary contactor is commonly used in industrial automation to add control or signaling functions to motor starters, load controllers, and other switching devices. It's vital for implementing interlocking logic, status indication, or additional control paths in electrical systems.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens KAD39-LA71MH4. We specialize in providing quality industrial automation components to keep your operations running efficiently.

Technical specifications

Contacts	2 NO, 2 NC
Coil Voltage	Specify (e.g., 24VDC, 120VAC)
Mounting	Attaches to Siemens Contactors
Series	3-Phase Contactors Accessories

Common applications

Motor control circuits

Interlocking logic

Control panel expansion

Status signaling

Automation systems

Safety circuits

Compatible systems

Compatible with select Siemens 3-phase contactors (e.g., 3RT series). Verify compatibility with your specific main contactor model.

Also known as

Siemens Auxiliary Contact Block KAD39 Contactor Module Siemens 2NO 2NC Auxiliary

Replaces / compatible with

This auxiliary contact block is designed to attach to compatible Siemens 3-phase contactors, expanding their control capabilities. It serves as an add-on module rather than a direct replacement for a main contactor.

Technical note

Expert tip

Ensure the mounting mechanism and electrical connections are secure when attaching this auxiliary contact block to the main Siemens contactor.

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Frequently asked questions

How does the Siemens KAD39-LA71MH4 auxiliary contactor expand control functions?

The Siemens KAD39-LA71MH4 adds 2 NO and 2 NC contacts to a main contactor. These additional contacts can be wired to create interlocking circuits, provide feedback signals, or enable more complex control logic within an automation system.