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Siemens SENTRON 3LD 100A Main Switch Disconnector - 37kW, Black

Siemens SENTRON 3LD 3-pole, 100A main switch disconnector with front mounting.

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ManufacturerSiemens

Part number3LD2704-0TK51

Poles 3

Rated Current (Iu) 100 A

Operating Power @ 400V AC-23A 37 kW

Mounting Front-mounted

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3-pole configuration 100A rated current 37kW power handling Front-mounted design Rotary operation 4-hole handle mounting

Product description

The Siemens SENTRON 3LD switch disconnector, part number 3LD2704-0TK51, is a 3-pole main switch designed for higher current applications. It features a rated operational current (Iu) of 100 A and a substantial operating power of 37 kW at 400 V (AC-23A). This model is designed for front mounting with a rotary operating mechanism and a black handle that requires 4-hole mounting.

This heavy-duty switch disconnector is ideal for primary power isolation in industrial settings requiring higher current handling capabilities. Its front-mounted design and robust construction make it suitable for control panels, machinery, and power distribution systems where reliable main power disconnect is essential. The 4-hole handle mounting allows for secure attachment and operation.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3LD2704-0TK51. We provide access to quality industrial automation components to ensure your operations remain efficient and safe. Trust Stanlo Automation for your surplus Siemens switch disconnectors and other automation needs, backed by our commitment to service.

Technical specifications

Poles	3
Rated Current (Iu)	100 A
Operating Power @ 400V AC-23A	37 kW
Mounting	Front-mounted
Operation	Rotary
Handle Mounting	4-hole
Color	Black
Type	Main Switch

Common applications

Industrial main power disconnect

High-current applications

Control panel main switches

Machinery power isolation

Power distribution systems

Manufacturing plant automation

Compatible systems

Industrial control panels High-power distribution Machine main disconnects

Also known as

Siemens 3LD 100A switch 3LD2704-0TK51 disconnector SENTRON front mount main switch

Replaces / compatible with

This 100A, 3-pole main switch disconnector can replace older or comparable Siemens 3LD series units or other brands with similar current and voltage ratings.

Technical note

Expert tip

Ensure the selected 4-hole mounting handle is compatible and securely attached to the front-mounted switch disconnector for proper operation.

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Frequently asked questions

What is the current rating and power handling capacity of the Siemens 3LD2704-0TK51?

The Siemens 3LD2704-0TK51 is rated for a nominal current (Iu) of 100 A and can handle an operating power of up to 37 kW at 400 V (AC-23A), making it suitable for higher current industrial applications.