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3RA1963-2A
Siemens 3RA1963-2A available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RA1963-2A is a three-pole link rail set designed for SIRIUS 3RT1.6 reversing contactor assemblies and S10 reversing starters. It provides connections on the infeed and output sides, with phase swapping at the output to support motor direction reversal. Intended for contactors with busbar connections, this wiring accessory is supplied without box terminals and helps create a neat, efficient reversing starter assembly.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3RA1963-2A |
| Alternative Part Number | 3RA19632A |
| Product Range | SIRIUS |
| Product Type | Link rail set |
| Product Category | Wiring modules, connectors and kits |
| Application | Electrical interconnection of reversing contactor assemblies |
| Compatible Contactor Series | Siemens 3RT1.6 |
| Starter Configuration | Reversing starter |
| Contactor Size | S10 |
| Number of Poles | 3 |
| Connection Arrangement | Infeed and output-side connections |
| Output Configuration | Phase swapping on the output side |
| Contactor Connection Type | Busbar connection without box terminal |
| Product Description | A three-pole link rail set designed to create the required power connections and output-side phase reversal within Siemens SIRIUS S10 reversing contactor assemblies. |
| Commodity Code | 853690 |
What type of component is this?
It is a three-pole link rail set designed to create the power connections required in a reversing contactor assembly.
What is the main application of this link rail set?
The set is used when constructing a reversing starter, typically for applications where a three-phase motor must operate in both forward and reverse directions.
Which contactor size is this set designed for?
The 3RA1963-2A is designed for S10-size contactors.
Which contactor series is compatible with these link rails?
The link rails are intended for reversing assemblies based on 3RT1.6 contactors. The exact contactor configuration and terminal arrangement should be checked before installation.
How many poles does the link rail set have?
It has a three-pole configuration suitable for three-phase power circuits.
Does the set connect both the incoming and outgoing sides?
Yes. It provides link rails for the infeed and output sides of the reversing contactor assembly.
How does the set enable motor direction reversal?
The output-side rail arrangement swaps the required phases between the contactors. This changes the phase sequence supplied to a compatible three-phase motor, allowing its direction of rotation to be reversed.
Is this set intended for contactors with busbar connections?
Yes. It is configured for contactors that use busbar connections.
Are box terminals included?
No. The link rail set is supplied without box terminals, so the complete assembly must have the appropriate compatible connection hardware.
Is this a complete reversing starter?
No. This is an interconnection set rather than a complete starter. Contactors and any other components required by the reversing starter design are separate.
What should be checked before fitting the link rails?
Confirm that the assembly uses S10-size 3RT1.6 contactors with the correct busbar connection arrangement. The contactor orientation, terminal positions and phase sequence should also match the intended reversing circuit.
Can standard straight links be used instead of this set?
Standard straight links may not provide the required output-side phase interchange. This purpose-designed set simplifies the connections and provides the phase-swapping arrangement needed for a compatible reversing assembly.
What is the approximate weight of the set?
Published product data lists a weight of approximately 2.445 kg.
Where is this component commonly used?
Typical applications include industrial motor control panels for conveyors, hoists, machinery, positioning systems and other equipment requiring forward and reverse motor operation.
- Creating reversing contactor assemblies for three-phase motor control
- Connecting Siemens SIRIUS 3RT1.6 contactors in S10 reversing starters
- Linking the incoming power supply and outgoing motor connections
- Providing phase swapping on the output side to reverse motor rotation
- Simplifying busbar wiring within industrial control panels
- Reducing individual cable connections in forward-and-reverse motor circuits
- Supporting reversing applications in conveyors, pumps, fans and machinery
- Building compact, organised motor starter configurations
- Replacing damaged or missing link rails in compatible contactor assemblies
- Standardising three-pole electrical connections in automation equipment
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
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Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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