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Siemens 3RA1963-2B Link Rails for 3RT1.6 Delta and Star Contactors

Siemens 3RA1963-2B link rails for 3RT1.6 delta/star contactors, includes neutral bridge.

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ManufacturerSiemens

Part number3RA1963-2B

Type Set of Link Rails with Neutral Bridge

For Use With Siemens 3RT1.6 Delta and Star Contactors

Features Between delta and star contactor connection, Phase swapping on output side, Includes neutral bridge

Busbar Connection Yes

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Connects delta and star contactors Includes neutral bridge Facilitates phase swapping For 3RT1.6 series Suitable for busbar connections

Product description

The Siemens 3RA1963-2B is a set of link rails designed to connect a delta contactor (3RT1.6) with a star (wye) contactor (3RT1.6) in a star-delta starter configuration. This kit includes a neutral bridge and facilitates phase swapping on the output side. It is intended for contactors with busbar connections and excludes box terminals.

This accessory is fundamental for building star-delta starters, a common method for reducing starting current in three-phase induction motors. It ensures proper electrical connection and sequencing between the main, delta, and star contactors, crucial for motor protection and efficient startup.

Stanlo Automation, a veteran-owned business, offers the Siemens 3RA1963-2B link rail set. We provide reliable surplus industrial automation parts, committed to delivering value and supporting your operational needs with quality components and excellent service.

Technical specifications

Type	Set of Link Rails with Neutral Bridge
For Use With	Siemens 3RT1.6 Delta and Star Contactors
Features	Between delta and star contactor connection, Phase swapping on output side, Includes neutral bridge
Busbar Connection	Yes
Box Terminal	No

Common applications

Star-delta motor starters

Three-phase induction motor control

Industrial machinery

Pump control

Fan control systems

Compatible systems

Siemens 3RT1.6 series contactors (for delta and star configurations) with busbar connections

Also known as

Siemens 3RA1963-2B Link Rail Set 3RA19632B Siemens star delta kit

Replaces / compatible with

This link rail set is specifically designed for connecting Siemens 3RT1.6 delta and star contactors in star-delta starter configurations, compatible with busbar connections.

Technical note

Expert tip

This kit is for 3RT1.6 contactors with busbar connections and is critical for proper phasing and neutral connection in star-delta configurations.

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Frequently asked questions

What is the purpose of the Siemens 3RA1963-2B link rail set in a star-delta starter?

The Siemens 3RA1963-2B provides the link rails and neutral bridge to connect the main, delta, and star 3RT1.6 contactors. It enables phase swapping on the output side and is essential for the correct operation of a star-delta motor starter.