Shipping information

Do you require same-day delivery or express shipping with a defined delivery time for this item?
Please contact us!

Product description

The Siemens 6RA2203-8DD21-1 from the SIMOREG K 6RA22 series is a compact analogue converter unit for supplying the armature of variable-speed DC drives. The version uses a B2HK circuit and is intended for single-quadrant operation. It can be operated from a two-phase supply with 230 V or 400 V AC. Depending on the supply voltage, the converter provides 180 V or 315 V DC; the rated direct current is 5 A. The corresponding rated output is 0.9 kW at 230 V and 1.6 kW at 400 V. The suffix -1 identifies the enclosed version for individual mounting. Its U-shaped enclosure is screwed directly to the mounting surface and has a device depth of 86 mm. Power and control connections are located on the underside of the unit. Pluggable terminal blocks are available for external signals, making replacement in existing industrial control cabinets straightforward. An uncontrolled rectifier for field supply is already integrated. The documented IP20 protection rating corresponds to the intended use in enclosed electrical operating areas. The 6RA2203-8DD21-1 is particularly suitable as a replacement for the identical order number in existing SIMOREG K drives. Before installation, the supply voltage, motor current, DC voltage, installed fuse and the specific circuit and connection arrangement of the system must be compared. The recommended fuse is 5SD4 20. Thanks to the analogue device architecture, existing setpoint, controller and signal connections remain predictable when replacing the unit with the same type. Installation, commissioning and adjustment must be carried out only by qualified personnel in accordance with the Siemens documentation and applicable safety regulations.

Siemens 6RA2203-8DD21-1

Specifications

Manufacturer Siemens
Product series SIMOREG K 6RA22
Manufacturer/order/identification number 6RA2203-8DD21-1
Device type Compact converter unit for DC drives
Converter circuit B2HK
Operating mode Single-quadrant operation
Supply connection 2-phase 230/400 V AC
Rated DC voltage 180 V at 230 V AC / 315 V at 400 V AC
Rated direct current 5 A
Rated output 0.9 kW at 230 V / 1.6 kW at 400 V
Application Armature supply for variable-speed DC drives
Field supply Integrated uncontrolled rectifier
Design Enclosed unit for individual mounting
Mounting U-shaped enclosure for bolting to the mounting surface
Device depth 86 mm
Signal connections Pluggable terminal blocks
Connection location Underside of unit
Protection rating IP20
Recommended fuse 5SD4 20
Control cabinet with PLC modules and automation components
Machine downtime in a production environment

Machine downtime?

Faster delivery

Is your machine down and do you require particularly fast delivery? Tell us directly. We will do everything possible to provide a quotation with the fastest available delivery and find a solution that matches your schedule.

Our highest priority is to keep your production processes running. Rely on our expertise and flexible service to minimise machine downtime effectively.

Contact us now!

Product safety

Manufacturer / EU responsible person

FAQ

Frequently asked questions

Contact us
Which supply voltages is the Siemens 6RA2203-8DD21-1 designed for?

The converter is designed for a two-phase connection with 230 V or 400 V AC. This provides 180 V or 315 V rated DC voltage with 5 A rated direct current.

What does the suffix -1 mean in this order number?

The suffix -1 identifies the version with a U-shaped enclosure for individual mounting. This version has connections on the underside of the unit and pluggable terminal blocks for external signals.

Is there a guarantee?

Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.

Please note that the guarantee only applies when the warranty seal is undamaged.

If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.

Further details are provided in the terms and conditions supplied with your quotation.

How quickly do you dispatch and which shipping options are available?

We generally dispatch immediately - in many cases on the same working day. For particularly urgent requirements or machine downtime, we find a suitable solution as quickly as possible and provide a specific delivery window on request.

Express shipping or collection from our premises is also possible, depending on the situation. State your requirements during the ordering process or contact us directly.

We ship worldwide and work with reliable shipping partners, from parcel services to freight forwarding. Freight shipments normally require some preparation so the goods arrive safely and undamaged.

Which payment methods are available?

Payment is normally made by bank transfer against invoice. Payment is due within 10 calendar days of receiving the goods.

As a rule, we offer purchase on account for all customers. In individual cases, such as new customers or particularly high-value components, we may agree advance payment. This decision is made individually and communicated transparently.

Can we return items if they were ordered incorrectly?

Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.

Please note that returns of functioning goods are generally excluded. In justified exceptional cases, we can assess an individual solution, but this is not the standard procedure.

Is there a discount when ordering several items?

For larger order quantities or several items of one type, we can offer individual discounts.

Simply send us a quick enquiry - we check availability and will gladly prepare a tailored quotation with quantity pricing.

Do you also purchase industrial spare parts?

Yes, we also purchase automation components, such as frequency inverters, PLC assemblies, panels, servo motors and CPUs. Components from Siemens, Lenze, Schneider Electric, Control Techniques or Heidenhain are especially sought after, and other brands are also possible.

The process is straightforward: email us an inventory list or overview photos at info@reha-industriekomponenten.de. We calculate a market-based purchase price and send you an offer.

Receive a quotation by email

Request price

Complete the form with your enquiry. We will respond with price, availability and delivery time.