Siemens S7 400 6ES7 421-1BL00-0AA0 SM 421 DI 32 x DC24V

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Final shipping cost and delivery time will be calculated at checkout.

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Free returns within 90 days of purchase

• The first return of one or multiple returnable items for EVERY order is free!
• This item can be returned within 90 days from the date of purchase.
• Returned items must be in their original condition with all accessories and packaging, or the refund amount may be affected.

Price adjustment within 30 days of payment

• Items purchased from Induplace are eligible for our price adjustment policy. Induplace will provide the price difference in the currency that the order was paid in if the selling price of the item purchased was reduced within 30 days of payment in the same country or region. The shipment of your order will not be affected by applying for a price adjustment before you receive your item(s). You can request a price adjustment refund by selecting the relevant order in 'Your Orders' and clicking on the 'Price adjustment' button.
• Items that are promotional or no longer available may not be eligible for our price adjustment policy. Fees, including but not limited to shipping fees, will be excluded for any price adjustment calculation. Induplace reserves the right to the final interpretation of our price adjustment policy, the right to modify the terms of this policy at any time, and the right to deny any price adjustment at our sole discretion.

Secure logistics

• Package safety

Full refund for your damaged or lost package.

• Delivery guaranteed

Accurate and precise order tracking.

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• Protecting your privacy is important to us! Please be assured that your information will be kept secured and uncompromised. We do not sell your personal information for money and will only use your information in accordance with our privacy and cookie policy to provide and improve our services to you.

Purchase protection

• Shop confidently on Induplace knowing that if something goes wrong, we've always got your back.

Customer service

• Our customer service team is always here if you need help.

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Our Srevices

Our main activities are the sale and purchase of industrial goods, machinery and spare parts for every industrial sector. We offer solutions in the area of hydraulics, pneumatics or automation. For special requirements we also offer custom-made products. In addition to technology and know-how, we can offer you used and new goods.

We are specialized in trading high quality used industrial goods. If you need help with a liquidation or industrial exploitation, we are at your side with the required experience and specialists. In cooperation with our partners, we take over, if desired, the complete disassembly and disposal.

Industrial electronics

• Repair of electronic assemblies
• Transferring parameters of the common assembly manufacters
• Replacement of drives (frequency converters, DC regulator, servo drive, soft starter)
• Trade of electronic assemblies
• Service and support for machine and plant downtime
• Disassembly of assemblies (electronics/ hydraulics)

Machines / plants

• Machinery / Equipment Dismantling (Scrapping)
• Machinery transport or relocation
• Project management (machine transport for whole lines)
• Transport of heavy machinery

Control technology

• Schaltschrankbau
• Machines Retrofit (Hydraulic Mechanical Presses, CNC Machine Tools)
• CNC control technology
• General PLC programming
• Programmieren von Antrieben (Frequenzumrichtern etc.)
• Disassembly of assemblies (electronics / hydraulics)

Delivery time for this item:

1 - 2 Business days

Items with the "Local warehouse" tag are more likely to reach you faster. These items are shipped from within your country/region or from nearby countries/regions.

Repair service for motors, frequency converters and control panels

With over 10 years of experience, we are the right choice when it comes to the quick and reliable repair of your motors, control panels or frequency converters. We take care of the mechanical and electrical repairs and give you a 12-month guarantee.

Repair your device (Control panel, motor, frequency converter) at fair and favorable conditions.

Our fair and inexpensive offer for professional repair of your device is convincing!

You can rely on it

• Spare parts in tested quality
• Checking the engines with the same brand system
• Painting in RAL colors
• Encoder adjustment & checking with Heidenhain measuring system
• Repair and overhaul by qualified personnel
• Customer support even after the repair
• 12 months guarantee

Your repair process

• Submit a repair request
• Receive repair offer
• Send in the device
• Device is checked & repaired
• Return shipping