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Siemens 3KC0432-2NE00-0AA0 SENTRON 125A 4-Pole Transfer Switch

Siemens 3KC0432-2NE00-0AA0 SENTRON 3KC 4-Pole Transfer Switch, 125A.

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ManufacturerSiemens

Part number3KC0432-2NE00-0AA0

Type Manual Transfer Switching Equipment (MTSE)

Series SENTRON 3KC

Size 2

Poles 4

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Manual Operation SENTRON 3KC Series Size 2 4 Poles 125A Rating 415V AC Versatile Mounting

Product description

The Siemens 3KC0432-2NE00-0AA0 is a manually operated SENTRON 3KC transfer switching equipment (MTSE). This Size 2 unit features 4 poles, a nominal uninterrupted current (Iu) of 125 A, and an operational voltage (Ue) of 415 V AC. It is rated for 125 A at AC-33 B (415 V) and 125 A at AC-23 A (690 V). The unit supports both screw and standard mounting rail installation (35 mm) and comes with a front operating mechanism that is central, without a handle, and features box terminals.

This 4-pole manual transfer switch is ideal for applications requiring the isolation and switching of multiple power sources or circuits, commonly used in complex power distribution systems, backup power setups, and industrial control for four-wire systems.

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Technical specifications

Type	Manual Transfer Switching Equipment (MTSE)
Series	SENTRON 3KC
Size	2
Poles	4
Iu	125 A
Ue AC	415 V
Ie (AC-33B @ 415V)	125 A
Ie (AC-23A @ 690V)	125 A
Mounting	Screw, 35mm DIN Rail
Operation	Front Centered, No Handle
Terminals	Box Terminal

Common applications

Four-Wire System Switching

Industrial Power Distribution

Backup Power Systems

Control Panels

Manufacturing

Building Automation

Compatible systems

Electrical systems requiring 4-pole manual transfer switching up to 125A at 415V AC, including those with Neutral conductors.

Also known as

Siemens MTSE 3KC0432 3KC Size 2 4-pole switch Siemens 125A manual transfer SENTRON 3KC 4-pole equipment

Replaces / compatible with

This unit is part of the Siemens SENTRON 3KC series and is suitable for systems requiring 4-pole manual transfer switching. Verify compatibility with existing control schemes and wiring configurations.

Technical note

Expert tip

The 'without handle' specification necessitates the separate purchase and installation of an operating handle accessory for safe and compliant manual actuation.

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Frequently asked questions

What is the current rating for the Siemens 3KC0432-2NE00-0AA0 in AC-33B applications?

The Siemens 3KC0432-2NE00-0AA0 SENTRON transfer switch is rated for 125 A at AC-33 B at 415 V. This rating ensures its ability to handle specific load switching duties under fault conditions.