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Siemens 3RA2815-2FW10
Solid-State Time-Delay Auxiliary Switch for SIRIUS 3RT2 Contactors
Product Description
The Siemens Solid-State Time-Delay Auxiliary Switch, model number 3RA2815-2FW10, is a front-mountable module that enhances the control functionality of your Siemens SIRIUS 3RT2 contactors. This reliable switch provides precise time-delayed switching for various industrial applications.
Operating as an off-delay timer, this module changes state after a set delay once the control signal is removed. It functions without the need for an additional auxiliary voltage supply for its timing function and features a broad control voltage range of 24 to 240V AC/DC. The time delay is adjustable from 0.05 to 100 seconds, offering flexibility for fine-tuning your processes. It includes one normally closed (NC) and one normally open (NO) contact for diverse switching requirements.
Designed for convenient snapping onto the front of 3RT2 contactors, this module integrates seamlessly. Equipped with reliable spring-loaded terminals, it ensures fast, secure, and vibration-resistant wiring. The switch also includes a varistor for attenuation of the contactor coil integrated.
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Offer details
- Offer from:
Trusted supplier — Czechia, member since 2021, 50–99 employees - Availability:
- 6 pcs.Updated at: 19-09-2026In-Stock
- Warranty:
- 24 months
- Condition:
- New Factory Sealed
Specifications
- Brand
- Siemens
- Setting time
- 0.05 s
- Switching function
- Other
- Operating principle
- Electronic
- Number of contacts as change-over contact
- 0
- Number of contacts as normally open contact
- 0
- Number of contacts as normally closed contact
- 0
Available Offers
(6)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
| Condition New Factory Sealed | Availability 6 pcs. Updated at: 19-09-2026In-Stock | SupplierCzechiaTrusted supplier — member since 2021, 50–99 employees | Warranty 24 months | |
 | Condition New Surplus | Availability 1 pc. Updated at: 19-09-2026In-Stock | SupplierCzechiaTrusted supplier — member since 2021, 50–99 employees | Warranty 24 months | |
:fill(white):quality(80)/media/thumbor) | Condition New Factory Sealed | Availability 6 pcs. Updated at: 19-09-2026In-Stock | Supplier PolandTrusted supplier — member since 2023, 50–99 employees | Warranty 24 months | |
| Condition New Surplus | Availability 1 pc. Updated at: 19-09-2026In-Stock | SupplierPolandTrusted supplier — member since 2023, 50–99 employees | Warranty 24 months | |
 | Condition New Factory Sealed | Availability On requestLead time: 3 days | Supplier GermanyTrusted supplier — member since 2024 | Warranty Not specified | |
 | Condition New Factory Sealed | Availability On requestLead time to be confirmed | Supplier ItalyTrusted supplier — member since 2021, 10–19 employees | Warranty 12 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 3RA2815-2FW10, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 19-09-2026
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