Frequently Asked Questions

NITAI specializes in M8, M12, and M16 waterproof circular connectors, as well as a comprehensive range of terminal blocks, cable assemblies, interface modules, and DIN rail connection systems. Our connectors are available in A, B, D, and X coding configurations to support power, signal, and data transmission in industrial environments.

Our standard waterproof connectors are rated IP67 and IP68, providing full protection against dust ingress and sustained water immersion. All units undergo waterproof testing as part of our quality control process before shipment. Custom IP ratings can be discussed for specialized applications.

We use industrial-grade materials selected for durability and compliance:

• Connector housings: PA66 (Polyamide 66) for high heat resistance and mechanical strength
• Terminals: Brass for reliable electrical conductivity and corrosion resistance
• Conductors: High-purity copper
• Cable jackets: PVC, PUR, or TPU depending on the application environment

NITAI products serve a broad range of industrial sectors including industrial automation, robotics, PLC control systems, sensor connectivity, smart manufacturing equipment, energy and infrastructure, transportation, building automation, and industrial medical equipment. Our connectors and terminal blocks are engineered to perform in demanding environments where reliability is critical.

NITAI products comply with major international standards required by our global markets:

Yes. Our products carry CE marking and comply with RoHS and REACH directives, which are mandatory requirements for the European market. Europe is one of our primary export destinations, and we maintain rigorous compliance processes to meet the relevant EU directives for electrical equipment and hazardous substance restrictions.

Yes. We can provide relevant certification documents, third-party test reports, material declarations (RoHS/REACH), and quality inspection records upon request. Please contact our sales team specifying which product line and certification documentation you require.

Our ISO 9001-certified quality management system governs every stage of production:

• Incoming material inspection for all raw materials
• In-process quality control at each production stage
• 100% electrical testing on finished assemblies
• IP67/IP68 waterproof testing for applicable products
• Final inspection and dimensional verification before shipment

NITAI provides full OEM and ODM manufacturing services for global industrial customers. Our capabilities include:

• Custom pin configurations and connector layouts
• Custom cable lengths, jacket materials (PVC/PUR/TPU)
• Private labeling and custom branding
• Custom packaging and labeling solutions
• Injection molding, cable overmolding, and automated assembly

MOQ varies depending on the product type and level of customization required. Standard catalog products typically have lower MOQs, while fully custom ODM projects may require higher volumes to offset tooling and setup costs. Please contact our sales team with your specific requirements for an accurate MOQ and pricing quotation.

Yes. Our ODM capability includes new product development from concept to mass production. With in-house injection molding, tooling, and engineering support, we can work from your drawings, samples, or technical specifications to produce a custom connector or terminal block solution tailored to your application requirements.

Yes. We offer private label and OEM branding services. This includes custom product labeling, branded packaging, and documentation tailored to your company's identity. This service is widely used by industrial distributors, cable assembly manufacturers, and OEM brands who source from us.

Lead times depend on order volume and product type. For standard catalog products with available stock, lead times can be as short as 3-7 business days. For standard production orders, typical lead time is 15-30 days. Custom ODM orders requiring new tooling may require 45-60 days or more. Specific lead times will be confirmed at the time of order.

NITAI exports to customers worldwide. Our primary markets include Europe, Southeast Asia, the Middle East, South America, and North America. We have established logistics experience shipping to these regions and can advise on the most appropriate shipping method for your order size and destination.

We support multiple shipping methods including air freight, sea freight, and express courier (DHL, FedEx, UPS). Common Incoterms we work with include EXW, FOB, CIF, and DDP. The most suitable option will depend on your order volume, urgency, and destination. Our logistics team can assist in coordinating the best solution.

Yes. We encourage customers to request samples for evaluation before committing to a bulk order. Sample availability and lead time vary by product. Please contact our sales team to arrange a sample request, specifying the product model, quantity needed, and your shipping address.

Yes. Technical datasheets, dimensional drawings (2D/3D), and wiring diagrams are available for our standard product range. You can request these documents from our sales or technical team by providing the product model number. For custom ODM products, engineering drawings will be shared during the development process.

Absolutely. Our technical team can assist you in selecting the correct product based on your application parameters, including voltage and current ratings, pin count, coding type, IP protection level, operating temperature range, cable jacket material, and mounting configuration. Please provide your application details when contacting us.

NITAI stands behind the quality of its products. In the event of confirmed manufacturing defects, we will work with you to resolve the issue through replacement, credit, or repair. Claims should be submitted with supporting documentation (photos, test results) within a reasonable period after receipt of goods. Please contact our after-sales team to initiate a claim.

You can reach our technical support and sales team via the contact form on our website, or directly by email. When submitting an inquiry, please include your product model number, application description, and any relevant technical parameters to help us respond accurately and efficiently. We aim to respond within 1 business day.