Effective date: 22 March 2026
Last updated: 22 March 2026

1. Seller / Service Provider

These Terms of Sale & Services govern the sale of products and the provision of services by:

nvolts s. r. o.
Lermontovova 911/3
811 05 Bratislava
Slovakia

IČO: 57026505
DIČ: 2122539617
Email: support@nvolts.eu

Throughout these Terms, “nVolts”, “we”, “us”, and “our” refer to nvolts s. r. o.

2. Scope of These Terms

These Terms apply to:

  • sale of stock products;
  • sale of standard electronics and related items;
  • custom PCB design;
  • custom-made or configured products;
  • prototyping and development services;
  • engineering and consulting services;
  • testing, integration, and technical support;
  • quotation-based orders;
  • contracts concluded with both consumers and business customers.

These Terms apply unless otherwise agreed in writing.

If a quotation, project agreement, statement of work, invoice, order confirmation, or other written document issued by nVolts contains specific terms, those specific terms prevail over these Terms to the extent of any inconsistency.

3. Customer Categories

We may supply products and services to:

  • consumers, meaning natural persons acting outside their trade, business, or profession; and
  • business customers, meaning persons or entities acting in the course of business, trade, profession, or other commercial activity.

Certain products or services may be available only after technical review or may be suitable only for business or professional use. We reserve the right to decline orders where supply is not technically, commercially, or legally appropriate.

4. No Binding Offer on the Website

Unless expressly stated otherwise, content on nvolts.eu is for informational purposes only and does not constitute a binding legal offer.

Product descriptions, service descriptions, photographs, application examples, drawings, technical specifications, availability indications, and price references may be changed or corrected at any time.

A contract is not formed merely because a customer:

  • visits the website;
  • sends an inquiry;
  • requests a quotation;
  • submits technical files or specifications;
  • expresses interest in a product or service.

5. Quotations and Contract Formation

5.1 Quotations

Quotations issued by nVolts are generally non-binding unless expressly stated otherwise in writing.

Unless a different validity period is stated, a quotation is valid for 14 calendar days from the date of issue.

5.2 Formation of contract

A contract is formed only when one of the following occurs:

  • we issue a written order confirmation;
  • we confirm acceptance of the customer’s order or quotation acceptance in writing;
  • we issue an invoice for an accepted order;
  • we begin performance after mutual agreement;
  • we otherwise expressly confirm that the contract has been concluded.

5.3 Right to reject

We reserve the right to reject any inquiry or proposed order before contract formation, including in cases involving:

  • technical infeasibility;
  • pricing or description errors;
  • product discontinuation;
  • export or sanctions restrictions;
  • suspected fraud or abuse;
  • concerns regarding intended use;
  • lack of product availability;
  • unreasonable or incomplete customer requirements.

6. Products and Services

nVolts may provide, among other things:

  • stock products;
  • control and electronics modules;
  • DAX PLC category products and similar standard items;
  • custom PCB design;
  • configured electronics;
  • prototypes;
  • embedded or control-related technical solutions;
  • engineering design;
  • consulting and feasibility work;
  • testing and integration support.

Descriptions of products and services are subject to the exact scope defined in the applicable quotation, confirmation, or project document.

7. Technical Review and Scope

For custom work, the scope of supply is determined primarily by the accepted quotation and any attached project description, technical specification, drawings, files, or correspondence expressly incorporated into the agreement.

If the customer provides incomplete, inaccurate, conflicting, or unclear information, nVolts may:

  • request clarification;
  • revise the quotation;
  • suspend work until clarification is received;
  • refuse to proceed.

nVolts is not responsible for errors caused by incorrect or incomplete customer-provided information, files, drawings, Gerber data, electrical assumptions, dimensions, or specifications.

8. Prices

Unless otherwise stated in writing:

  • prices are in EUR;
  • prices may be quoted as net or gross depending on the type of customer and applicable tax treatment;
  • prices do not include shipping, insurance, customs duties, import taxes, bank charges, installation, on-site work, certification, or third-party costs unless expressly included.

If a quotation is based on information later shown to be incomplete or inaccurate, we may revise the price accordingly before proceeding.

9. Taxes, Customs, and International Orders

The customer is responsible for any taxes, customs duties, import fees, clearance charges, local regulatory costs, or similar governmental charges applicable in the destination country, unless expressly agreed otherwise in writing.

For cross-border deliveries, the customer is responsible for:

  • compliance with local import requirements;
  • obtaining required permits or approvals where necessary;
  • ensuring that the ordered goods or services may lawfully be imported, used, or deployed in the destination country.

10. Payment Terms

Payment terms will be stated in the quotation, invoice, or written agreement.

Unless otherwise agreed, we may require:

  • full payment in advance;
  • a deposit before procurement, production, or project start;
  • milestone payments for custom work;
  • advance payment for international orders or high-risk destinations.

If the customer fails to make payment when due, nVolts may, to the extent permitted by law:

  • suspend performance;
  • delay shipment;
  • withhold delivery of deliverables, files, or documentation;
  • charge statutory interest or recovery costs;
  • terminate or cancel the contract.

11. Delivery and Lead Times

Any delivery date, dispatch date, completion date, or lead time provided by nVolts is an estimate unless expressly stated as binding in writing.

Lead times may depend on:

  • customer response time;
  • completeness of technical input;
  • component or material availability;
  • third-party supplier performance;
  • manufacturing capacity;
  • shipping conditions;
  • customs procedures;
  • requested changes;
  • technical review results.

Delays caused by the above do not automatically entitle the customer to damages, cancellation, or penalty claims, unless mandatory law provides otherwise.

Partial delivery or phased performance is permitted where reasonable.

12. Shipping and Transfer of Risk

For consumers, the transfer of risk is governed by applicable mandatory consumer law.

For business customers, unless otherwise agreed in writing, risk passes when the goods are handed over to:

  • the carrier;
  • freight forwarder;
  • courier;
  • shipping company; or
  • other first transport provider.

Customers should inspect goods upon delivery and report visible damage, shortages, or delivery errors without undue delay.

13. Retention of Title

To the extent permitted by law, all goods delivered by nVolts remain the property of nVolts until full payment of all amounts due under the relevant contract has been received.

Until ownership transfers, the customer shall not unlawfully dispose of, pledge, or encumber the goods in a way that prejudices our rights.

14. Customer Responsibilities

The customer is responsible for ensuring that:

  • all provided information is complete and accurate;
  • all files, drawings, Gerber files, specifications, and instructions are correct;
  • all required technical, legal, and regulatory requirements are disclosed to nVolts before acceptance;
  • the intended use of the product or service is lawful and suitable;
  • proper installation, integration, and operation are carried out safely and by qualified persons where necessary;
  • any customer-supplied materials do not infringe third-party rights.

The customer bears full responsibility for final system use, compliance at the installation site, and suitability for the intended application unless expressly agreed otherwise in writing.

15. Custom Products and Project Work

Custom products and project-based services may include:

  • custom PCB design;
  • configured boards and assemblies;
  • prototypes;
  • engineering calculations or design tasks;
  • integration work;
  • consulting and technical studies;
  • firmware-related work;
  • custom modifications of standard items.

Because such work is tailored to customer requirements:

  • pricing may depend on scope, revisions, urgency, and technical risk;
  • deadlines may depend on customer cooperation and third-party supply;
  • changes after acceptance may require revised pricing and timing.

16. Change Requests

If the customer requests changes after acceptance of a quotation or project scope, nVolts may revise:

  • price;
  • delivery time;
  • milestones;
  • technical specifications;
  • warranty conditions;
  • implementation approach.

We may suspend work until the requested change is reviewed and confirmed in writing.

Any additional work caused by change requests is chargeable.

17. Suspension or Cancellation by the Customer

If the customer requests suspension, postponement, or cancellation of a custom order or service after contract formation, nVolts may invoice the customer for:

  • work already performed;
  • engineering or development time already spent;
  • purchased materials or components;
  • non-cancellable third-party costs;
  • testing costs;
  • administrative and project management costs already incurred.

For custom or made-to-order work, cancellation does not automatically entitle the customer to a refund.

18. Acceptance of Deliverables

For services, project work, and custom deliverables, a deliverable shall be deemed accepted when:

  • the customer confirms acceptance in writing; or
  • the customer begins operational, test, pilot, or production use of the deliverable; or
  • the customer fails to raise a substantiated written objection within 7 business days after delivery or notice of completion.

This clause applies primarily in B2B relationships and does not limit any mandatory consumer rights.

19. Intellectual Property

19.1 Ownership of background rights

All pre-existing know-how, design methods, tools, reusable modules, templates, source concepts, engineering approaches, libraries, and background intellectual property of nVolts remain the property of nVolts.

19.2 Customer materials

Customer-supplied files, drawings, trademarks, and project input remain the customer’s property or responsibility, subject to any third-party rights.

The customer grants nVolts the right to use such materials to the extent necessary to review requests, prepare quotations, and perform the contract.

19.3 Deliverables

Unless otherwise expressly agreed in writing:

  • ownership of physical goods transfers only upon full payment;
  • project-specific deliverables are provided only for the agreed purpose;
  • intellectual property rights in background methods, generic designs, reusable structures, and non-project-specific engineering elements remain with nVolts.

If the customer requires full assignment, exclusive rights, source files, design files, or broader IP transfer, that must be expressly agreed in writing and may require additional payment.

20. Complaints and Defect Notification

If the customer believes goods or services are defective, incomplete, damaged, or not in conformity with the contract, the customer must notify nVolts without undue delay by email to support@nvolts.eu.

The notice should include, where possible:

  • order or quotation reference;
  • product or project identification;
  • description of the issue;
  • photographs, video, logs, or other evidence where relevant;
  • serial number or unit identifier if available.

In B2B cases, failure to report visible issues without undue delay may affect available remedies to the extent permitted by law.

21. Warranty

Statutory rights remain unaffected.

In addition to any mandatory legal rights, nVolts may provide a commercial warranty of 12 to 26 months, depending on the product. The applicable warranty period, if any, will be stated on the product page, quotation, invoice, or accompanying documentation.

Unless otherwise stated, the commercial warranty covers defects in materials or workmanship under normal and intended use.

The warranty does not cover damage or defects resulting from:

  • misuse;
  • improper installation;
  • improper storage;
  • incorrect wiring;
  • unauthorized repair or modification;
  • operation outside specified technical limits;
  • unsuitable environment;
  • external power issues;
  • customer-supplied faulty files or instructions;
  • integration with unsuitable third-party systems;
  • normal wear and tear.

Warranty remedies may include repair, replacement, price reduction, or refund, depending on the circumstances and applicable law.

22. Consumer Withdrawal and Returns

If the customer is a consumer, withdrawal and return rights are governed by our separate Return / Refund / Withdrawal Policy.

That Policy forms part of these Terms.

For business customers, returns are accepted only in defect-based situations or where expressly agreed in writing.

23. Limitation of Liability

Nothing in these Terms excludes or limits liability where such exclusion or limitation is not permitted by law.

Subject to that, and especially in B2B relationships, nVolts shall not be liable for:

  • indirect loss;
  • consequential loss;
  • loss of profit;
  • loss of revenue;
  • loss of business opportunity;
  • loss of production;
  • loss of data;
  • reputational damage;
  • expected savings not realized.

To the maximum extent permitted by law, the total aggregate liability of nVolts arising from a contract shall not exceed the amount actually paid by the customer for the specific product or service giving rise to the claim.

nVolts is not liable for outcomes resulting from the customer’s end-use, system integration, regulatory misclassification, or unsafe deployment unless we expressly assumed such responsibility in writing.

24. Force Majeure

nVolts shall not be liable for delay or failure in performance caused by circumstances beyond our reasonable control, including:

  • supply chain disruption;
  • shortage of components or materials;
  • transport interruption;
  • customs delays;
  • export control issues;
  • sanctions-related restrictions;
  • utility failures;
  • cyber incidents;
  • acts of government;
  • war;
  • labor disputes;
  • natural disasters;
  • epidemics or similar events.

In such cases, performance deadlines are extended for a reasonable period.

If the event continues for an extended period, either party may discuss appropriate revision or termination of the affected part of the contract.

25. Compliance, Export Control, and Restricted Use

The customer must comply with all applicable:

  • import laws;
  • export control rules;
  • sanctions laws;
  • dual-use restrictions;
  • end-use restrictions;
  • product safety and compliance requirements.

The customer may not use or transfer products or services supplied by nVolts for unlawful purposes or prohibited destinations or end uses.

nVolts may refuse, suspend, or terminate performance if a compliance risk arises.

26. Confidentiality

Where confidential information is exchanged in connection with a quotation, order, or project, each party shall treat non-public technical, commercial, and business information of the other party as confidential and shall not disclose it to third parties except:

  • where necessary for contract performance;
  • to professional advisors under confidentiality obligations;
  • where required by law.

This obligation does not apply to information that is already public without breach, already lawfully known, or independently developed without use of the other party’s confidential information.

27. Governing Law

These Terms and all contracts governed by them are subject to the laws of the Slovak Republic, excluding conflict-of-laws rules.

If the customer is a consumer, mandatory consumer protection rules of the consumer’s country of habitual residence may still apply to the extent required by law.

28. Jurisdiction

For business customers, any dispute arising out of or in connection with these Terms or the related contract shall be subject to the exclusive jurisdiction of the competent courts in Bratislava, Slovakia, unless mandatory law requires otherwise.

For consumers, mandatory jurisdiction rules remain unaffected.

29. Severability

If any provision of these Terms is found to be invalid, unlawful, or unenforceable, the remaining provisions remain in full force and effect to the maximum extent permitted by law.

30. No Waiver

Failure by nVolts to enforce any provision of these Terms shall not be deemed a waiver of that provision or of any other right.

31. Changes to These Terms

We may update these Terms from time to time.

The version in force at the time of contract formation generally applies to the relevant order, unless mandatory law requires otherwise.

32. Contact

For quotations, orders, warranty claims, complaints, or contractual matters, contact:

nvolts s. r. o.
Lermontovova 911/3
811 05 Bratislava
Slovakia
Email: support@nvolts.eu