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Siemens 3LD2203-1TP51 3-Pole Main Switch with NC/NO

Siemens 3LD2203-1TP51 SENTRON 3-Pole Main Switch with NC/NO

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ManufacturerSiemens

Part number3LD2203-1TP51

Poles 3

Current 32 A

Voltage 400 V

Power 11.5 kW

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3-Pole configuration 32A current rating 11.5kW at 400V power Main switch functionality Integrated NC/NO auxiliary contacts Front-mounted design with 4-hole handle mount

Product description

The Siemens 3LD2203-1TP51 is a 3-pole SENTRON 3LD series switch disconnector, functioning as a main switch. It has a rated operational current (Iu) of 32 A and delivers an operating power of 11.5 kW at AC-23A 400 V. This front-mounted unit features a black rotary operating mechanism with a 4-hole handle mount and includes 1 NC and 1 NO auxiliary contacts.

This versatile 3-pole switch is suitable for main power isolation and control, as well as signaling applications due to its integrated auxiliary contacts. It is widely used in industrial control panels, machinery, and automation systems where both power switching and status monitoring are required.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, offers the Siemens 3LD2203-1TP51. We are committed to providing quality components and reliable service for your automation needs.

Technical specifications

Poles	3
Current	32 A
Voltage	400 V
Power	11.5 kW
Type	Switch Disconnector, Main Switch
Mounting	Front-mounted
Operation	Rotary
Handle Color	Black
Handle Mount	4-hole
Contacts	1 NC, 1 NO

Common applications

Main power isolation

Control panels

Industrial machinery

Automation systems

Signaling circuits

Motor control

Compatible systems

Suitable for main power isolation, control, and signaling applications in industrial automation, machinery, and electrical control systems.

Also known as

Siemens 3LD2 main disconnect with aux contacts 32A Siemens rotary switch NC NO Siemens front mount 3-pole switch

Replaces / compatible with

This 3-pole main switch disconnector with auxiliary contacts can replace older Siemens 3LD series units with similar specifications. Ensure auxiliary contact configuration matches your needs.

Technical note

Expert tip

The inclusion of NC/NO auxiliary contacts allows for integration into control logic and status monitoring systems, enhancing the functionality of the main disconnect.

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Frequently asked questions

What auxiliary contacts are included with the Siemens 3LD2203-1TP51?

The Siemens 3LD2203-1TP51 is equipped with integrated auxiliary contacts, specifically 1 Normally Closed (NC) and 1 Normally Open (NO) contact. These are useful for control circuits and status feedback.