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Siemens 3LD2003-1TP53 3-Pole Emergency Switch Disconnector

Siemens 3LD2003-1TP53 SENTRON 3-pole switch disconnector for emergency switching.

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ManufacturerSiemens
Part number3LD2003-1TP53
Type Switch disconnector
Manufacturer Siemens
Series SENTRON 3LD
Poles 3
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Emergency switching-off function 3-pole configuration Front-mounted rotary operation Red/Yellow safety handle Includes 1 NC and 1 NO auxiliary contacts

The Siemens 3LD2003-1TP53 is a 3-pole SENTRON switch disconnector designed for emergency switching-off functions. It features a rated operational current (Iu) of 16 A and an operating power of 7.5 kW at AC-23 A and 400 V. This unit is front-mounted with a rotary operating mechanism and includes 1 normally closed (NC) and 1 normally open (NO) auxiliary contact, with a red/yellow handle and 4-hole mounting.

This switch disconnector is ideal for safety applications in industrial machinery, control panels, and power distribution systems where immediate shutdown is critical. It is commonly used in manufacturing plants, automation systems, and facilities requiring robust safety interlocks and operator controls.

As a veteran-owned surplus parts distributor, Stanlo Automation offers reliable access to essential industrial components like the Siemens 3LD2003-1TP53. We ensure quality and availability, providing cost-effective solutions for your automation needs.

TypeSwitch disconnector
ManufacturerSiemens
SeriesSENTRON 3LD
Poles3
Rated Current (Iu)16 A
Operating Power (AC-23A, 400V)7.5 kW
MountingFront-mounted
Handle TypeRotary
Handle ColorRed/Yellow
Auxiliary Contacts1 NC, 1 NO
Handle Mounting4-hole
Industrial machinery
Control panels
Power distribution
Safety interlocks
Automation systems
Manufacturing plants
Control panels Industrial machinery Electrical enclosures
Siemens 3LD2003 3LD2003-1TP53 switch Siemens disconnect switch
This switch disconnector is designed for direct replacement or upgrade of similar Siemens 3LD series components. Check Siemens documentation for specific cross-references.
Expert tip
Ensure proper torque is applied to the terminals during installation to maintain reliable electrical connections and prevent overheating.
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What is the primary function of the Siemens 3LD2003-1TP53?
The Siemens 3LD2003-1TP53 is primarily used as an emergency switching-off switch. Its robust design and clear visual indicators (red/yellow handle) ensure rapid and safe de-energization of machinery or circuits in critical situations.