Molex High-Current Universal-Clamp Terminal Blocks provide a secure solution for connecting aluminum-to-aluminum, copper-to-copper, or aluminum-to-copper conductors in industrial environments. These blocks feature a polyamide housing rated from -40°C to +105°C (up to +125°C for specific models), along with a partitioned cover to minimize oxidation and ensure isolation. The construction includes tin-plated aluminum contacts and hex screws to maintain stable and reliable wire clamping. These devices offer current ratings from 120A to 380A (or up to 425A under EN standards), support wire sizes from 6AWG to 500MCM, and meet UL 1059 and IEC/EN 61238‑1 Class A standards. Applications include commercial vehicles, electric trains, motor control systems, motor drives, motor inverters.
Molex Universal Clamp Fixed Terminal Blocks
Features
- Aluminum-to-copper and aluminum-to-aluminum compatibility
- Compound coating
- DIN-rail or through-hole mountable
- Different color covers are available
- Double housing and cover design
- Hex Screws
- High temp Polyamide housing and cover
- Partition wall on cover
- Polyamide housing and cover
- Single contact with four terminations
- Three pole version
- Tin coated aluminum contacts
Applications
- Commercial vehicles
- Electric trains
- Motor control systems
- Motor drives
- Motor inverters
- Photovoltaic (solar) systems
- Power distribution panels and cabinets
- Switchgears
- Vehicle charging stations
Resources
Video
This TTI Tech Specs video for Molex High-Current Universal Clamp Terminal Blocks explains that they let you terminate aluminum and copper wires without worrying about oxidation and high contact resistance. The terminal blocks have tin-plated aluminum contacts that can connect to either aluminum or copper without oxidizing, and a partition wall on the cover acts as a barrier to prevent contact between the bare wires.
See video transcript below
Video Transcript
Like oil and water, aluminum and copper don’t mix, but Molex High-Current, Universal Clamp Terminal Blocks let you terminate aluminum and copper wires without worrying about oxidation and high contact resistance. The terminal blocks have tin plated aluminum contacts that can connect to either aluminum or copper without oxidizing, and a partition wall on the cover acts as a barrier to prevent contact between the bare wires.
The terminal blocks are available with a current rating up to 380 A, a voltage rating up to 1000 V, and a wide operating temperature range, making them ideal for demanding applications such as railway, motor drives, commercial vehicles, and photovoltaic systems. To ensure reliability, the products have been short circuit tested to EN 61238-1 . For application and design flexibility, Molex High-Current, Universal Clamp terminal blocks are available with DIN Rail or screw mounting and in single or three-pole versions.