3RT1966-4EA1
Extended terminal cover, 120 mm in length, suitable for SIRIUS 3RT1, 3RB2, 3RW4 series S10, S12 housings, balancing insulation spacing and electric shock protection.
Product Positioning
The 3RT1966-4EA1 is an extended terminal cover for Siemens SIRIUS large contactors. It is suitable for the 3RT1 and 3RB2 series with S10 and S12 housings, as well as related products such as the 3RW4 and 3RW507. It can be used with both busbar and box-type terminal connections in the main circuit. The cover is 120 mm long, and the manufacturer recommends installing two covers per contactor. In addition to providing protection against electric shock, it also helps maintain the required air insulation clearance. It is a common standard accessory for large switchboards.
Core Product Advantages and Features
Extended protective design
The cover is 120 mm long, which is longer than the standard terminal cover, taking into account both electric shock protection and insulation spacing requirements.
Both busbars and box-type terminals are acceptable.
Whether the main circuit uses busbar connection or box-type terminal wiring, it can be installed in combination, offering high flexibility in application.
The manufacturer recommends installing two units.
It is recommended to use two pieces with each contactor to symmetrically cover the terminal areas on both sides.
Cross-product line compatibility
It is applicable to multiple SIRIUS large series products such as 3RT1, 3RB2, 3RW4, and 3RW507, making spare parts management simpler.
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