3RT1966-4G
Box-type terminal blocks suitable for 3RT1/3RB2 S10 and S12 housings, supporting large cross-section cable connections and auxiliary wiring, facilitating on-site wiring of high current circuits.
Product Positioning
The 3RT1966-4G is a box terminal accessory for Siemens SIRIUS large contactors. It is designed for the 3RT1 and 3RB2 series products in S10 and S12 housings, as well as some 3RW soft starters. It allows high-current main circuits to be directly connected with thicker cables or busbars, while retaining space for auxiliary conductor connections. It is a commonly used expansion terminal solution for field wiring of large contactors.
Core Product Advantages and Features
High current housing
Designed specifically for the large housings of SIRIUS 3RT1, 3RB2 series S10 and S12, conforming to the terminal spacing and clamping force of the corresponding current rating.
Large cross-section cable compatibility
The terminal openings can accommodate thicker cable specifications, making them suitable for high-current main circuit wiring and reducing the need for additional adapters.
Support auxiliary conductor
In addition to the main circuit terminals, auxiliary conductor connection positions are provided simultaneously to facilitate the integration of the control circuit into the entire line.
Cross-series commonality
The same terminal block can be used for soft starters such as 3RT1, 3RB2, and even 3RW407 and 3RW444, which facilitates unified management of spare parts.
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SIRIUS 3RT1066 contactor main circuit maintenance contact group, including 3 movable and 6 fixed contacts, original factory design compatible with S10 housing 265A rating, extending equipment life.
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3RT1966-4EA3
Used in the housing of SIRIUS 3RT1/3RB2 S10 and S12, to shield the busbar connection between the contactor and the overload relay, reducing the risk of accidental contact with live parts.
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3RT1966-4EA2
The protective cover shields the SIRIUS 3RT1, 3RB106, 3RW407 and 3RW444 box-type terminals and features a finger-proof design to reduce the risk of accidental contact.