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Siemens SENTRON 3LD2164-1GP51 Main Switch with Aux Contacts

Siemens 3LD2164-1GP51 SENTRON 3-pole switch disconnector with aux contacts.

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ManufacturerSiemens

Part number3LD2164-1GP51

Poles 3

Current (Iu) 25A

Power (AC-23A, 400V) 9.5 kW

Auxiliary Contacts 1 NC, 1 NO

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Veteran-owned

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3-Pole configuration 25A continuous current 9.5kW operating power at 400V Main switch function 1 NC and 1 NO auxiliary contacts Metric screw connection Black rotary mechanism

Product description

The Siemens 3LD2164-1GP51 is a SENTRON 3LD series switch disconnector designed as a main switch. It is a 3-pole unit with a 25A (Iu) rating and an operating power of 9.5 kW at AC-23A and 400V. This model features molded-plastic encapsulation for metric screw connections, along with 1 normally closed (NC) and 1 normally open (NO) auxiliary contacts, all operated by a black rotary mechanism.

This versatile switch disconnector is suitable for machine construction, conveyor systems, and general industrial applications where a main switch with signaling capabilities is required. The integrated auxiliary contacts allow for status feedback to control systems.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3LD2164-1GP51. We provide reliable access to essential industrial components, ensuring your automation systems are equipped with quality parts at competitive prices.

Technical specifications

Poles	3
Current (Iu)	25A
Power (AC-23A, 400V)	9.5 kW
Auxiliary Contacts	1 NC, 1 NO
Connection	Metric Screw
Actuator	Rotary
Color	Black

Common applications

Machine Construction

Conveyor Systems

Industrial Control

Automation Systems

Panel Building

Compatible systems

Industrial control panels, machine wiring, and automation systems

Also known as

Siemens 3LD2164-1GP51 SENTRON 3LD Main Switch Metric Connection Disconnector

Replaces / compatible with

This switch disconnector is designed to replace Siemens 3LD series main switches that require metric screw connections and integrated auxiliary contacts. Confirm specifications for compatibility.

Technical note

Expert tip

The metric screw connection housing is designed for secure termination of conductors in industrial control panel wiring.

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Frequently asked questions

What function do the 1 NC and 1 NO auxiliary contacts serve on the Siemens 3LD2164-1GP51?

The 1 normally closed (NC) and 1 normally open (NO) auxiliary contacts on the Siemens 3LD2164-1GP51 provide status feedback for the switch position, enabling integration with control and monitoring systems.