AOSI Electronics is a trusted manufacturer of pluggable terminal blocks, offering bulk supply and custom branding for global automation and electrical brands.
We provide reliable, easy-to-use solutions tailored to clients in the USA, Germany, Russia, and other major markets.
Looking for high-quality pluggable terminal blocks? AOSI Electronics has you covered. We’re proud to be your trusted source for a wide range of pluggable terminal blocks, engineered to meet the needs of modern electrical and automation systems. Our products are designed for secure, efficient, and user-friendly connections—perfect for panel builders, control systems, and equipment manufacturers.
We boast advanced manufacturing, full certifications (CE, RoHS, UL，and so on), and strict quality control. Our professional sales team provides expert support worldwide, ensuring reliable service for clients in the USA, Germany, Russia, and beyond.
At AOSI Electronics, all our terminal blocks and connectors are rigorously tested and fully certified:
✅ UL, CE, RoHS, and REACH compliant
✅ 100% quality inspection before shipment
✅ Strict adherence to ISO 9001:2015 quality management standards
✅ Fireproof, high-temperature resistant, and vibration-tested designs for industrial environments
🔒 Reliable connection starts with certified components. We make no compromise when it comes to safety and compliance.
As a direct factory with over 15 years of experience in terminal block production, AOSI provides:
🔧 Over 30 injection molding machines
🧰 In-house tooling and mold design capabilities
👷 50+ skilled workers and 8 production lines
🚚 Monthly output over 5 million pieces
From prototyping to bulk delivery, we offer stable lead times, flexible MOQ, and consistent product quality.
Whether you are a distributor, system integrator, or OEM, AOSI is ready to support your growth:
🌐 Exporting to 40+ countries across Europe, Asia, and the Americas
🧩 Customizable options: pin count, logo, color, housing material, packaging
🤖 Engineering support for special pitch, modular block design, and high-current applications
📦 We speak your language: fast communication, drawings, samples, and global logistics support.
We’ve been supplying pluggable terminal blocks to Maxtron Controls for their industrial automation cabinets since 2021. They value our product consistency and flexible MOQ policy.
VietTech Energy integrates our 5.08mm pitch pluggable terminal blocks into their inverter systems. Our fast delivery and UL-certified quality helped them pass CE audits smoothly.
The AOSI team really understands what small manufacturers need. Their terminal blocks are durable, easy to use, and well packed. They even customized the color for our wiring standard. It’s been a great collaboration.
We’ve been working with AOSI for over 4 years. Their pluggable terminal blocks are extremely stable under vibration and temperature change. The sales team is responsive, and they even helped us customize our packaging labels and drawings – which is rare. Highly recommended.
AOSI is a China-based manufacturer of pluggable terminal blocks. Our products are widely used in control cabinets, solar inverters, automation equipment, and more.
With custom options and stable quality, we support OEM projects and fast production. If you’re looking for a reliable factory-direct supplier, contact us today for a quick quote.
A pluggable terminal block is a modular electrical connector system that allows the plug (female side) to be easily inserted or removed from the header (male side), typically used in control cabinets, automation systems, and PCB-based devices.
Yes, AOSI pluggable terminal blocks are UL, CE, RoHS, and REACH certified to meet international safety and environmental standards.
Yes, we support full OEM/ODM services:
Absolutely! We offer free samples for testing and evaluation. Contact our sales team to request yours.
We offer a variety of pitch options including 3.5mm, 3.81mm, 5.0mm, 5.08mm, 7.62mm, and custom sizes depending on your design and voltage/current requirements.
Our standard models range from:
Yes, many of our models are designed to be 100% compatible with common Phoenix or WAGO series, making them a reliable alternative.
With this information, we’ll quickly respond with tailored solutions, drawings, and quotes.Act now!
