1 year warranty
The Siemens 3RA2816-0EW20 is a SIRIUS function module designed for star-delta (wye-delta) motor starting applications. It consists of a lateral basic module and two coupling modules with integrated connecting cables, enabling tool-free assembly of complete star-delta starter combinations without additional wiring. The module includes a built-in timing function and electrical interlock between the main and star contactors, ensuring safe and reliable transitions during motor startup. An integrated varistor attenuates contactor coil switching transients to protect adjacent electronics. It mounts directly onto Siemens 3RT2 contactors (sizes S00 to S3) and 3RH2 contactor relays (size S00), making it ideal for the targeted startup of three-phase motors, fans, ventilators, pumps, and similar inductive loads. The wide 24–240 V AC/DC control voltage range and adjustable 0.05–60 s timing provide broad application flexibility.
Item Details
- Brand Name: Siemens
- Manufacturer: Siemens AG
- Item Type Name: Star-Delta (Wye-Delta) Function Module
- Product Family / Series: SIRIUS 3RA28
- Product Line: SIRIUS Innovation
- Function: Star-Delta (Wye-Delta) Starting Function Module
- Module Composition: 1 basic module + 2 coupling modules with integrated connecting cable
- Compatible Contactors: 3RT2 S00–S3 contactors and 3RH2 S00 contactor relays
Product Specifications
- control_supply_voltage: 24–240 V AC/DC
- frequency: 50/60 Hz
- time_range: 0.05–60 s
- surge_suppression: Integrated varistor for attenuation of contactor coils
- mounting: Clip-on / tool-free lateral mounting on contactor
- interlock: Electrical interlock integrated
- wiring: Integrated connecting cable (no additional wiring required)
Additional Details
- Manufacturer Country: Germany
- Applications: Star-delta starting of motors, fans, ventilators, and pumps
- Typical Use: Motor feeders in industrial automation and control panels
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
In no event shall PLC Direct be liable for any damages except actual damages up to, but not exceeding, the amount paid to us for the product, including we shall not be liable for any consequential or indirect damages or lost profits whether or not advised of same.
PLC Direct offers free shipping worldwide. Product ship from a various warehouses worldwide based on the customer's and the product's location. The estimated delivery date on the product page is PLC Direct's best estimated assuming a US-based shipping destination.
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