OTL150-3 connector blue 3xAl/Cu 25-150mm² 1000V AC/1500V DC, universal terminal MAA3150B10

Universal solution for Al/Cu electrical installations

The OTL150-3 terminal block is an advanced electro-installation component designed for professionals working with aluminum and copper conductors in a wide range of cross-sections from 25 to 150 mm². This blue universal terminal is ideal for main switchboards, industrial installations, and photovoltaic systems, where a reliable connection of different conductor types is required without the need for additional adapters.

Construction and materials ensuring durability

The housing, made of thermoplastic material with a flammability rating of V0 according to UL94, guarantees maximum operational safety and resistance to high temperatures. Special plating technology allows for the direct connection of aluminum and copper conductors to the terminals, eliminating galvanic corrosion problems at the interface of different metals.

Each terminal block features factory-applied contact paste, meaning it is ready for use immediately after unpacking, which significantly accelerates the installation process and minimizes the risk of assembly errors. The ClickSet™ mechanism enables rapid mounting on a TH-35 mm DIN rail, while screw mounting is also possible as an alternative for greater application flexibility.

Operating parameters and user safety

The terminal block operates stably at a rated voltage of 1500V DC, making it an ideal choice for photovoltaic systems and DC installations. A rated current of 320A and a wide operating temperature range from -25°C to +80°C ensure versatility of application in various environmental conditions.

Short-circuit class A confirms resistance to overloads and short circuits - the terminals undergo rigorous mechanical and load tests, allowing them to be used as main power terminals in installations exposed to extreme current loads.

Compliance, standards, and quality certificates

The product meets the requirements of the EN 60947-7-1 and EN 61238-1 standards, which define the standards for electro-installation components. It holds UL 1059 and SGS FI certificates, confirming high manufacturing quality and compliance with international safety standards.

Availability in various color versions (gray, blue, yellow-green, red, black) facilitates circuit identification in switchboards. The IP20 protection rating provides basic insulation while maintaining easy access to working elements during service work.