3RT1966-4EA3

Siemens 3RT1966-4EA3 contactor busbar connection terminal cover S10 S12 protective cover
Siemens 3RT1966-4EA3 contactor busbar connection terminal cover S10 S12 protective cover

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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Siemens 3RT1966-4EA3 contactor busbar connection terminal cover S10 S12 protective cover
Product Positioning

The 3RT1966-4EA3 is a terminal protection cover for Siemens SIRIUS large contactors. It is specifically designed to shield the terminal area connected to overload relays (such as the 3RB106) via busbars between the 3RT1 and 3RB2 series S10 and S12 housing contactors. After installation, it effectively prevents accidental contact with live terminals by operators' fingers or tools, while maintaining the required insulation clearance. It is a safety accessory frequently required when assembling large contactors in distribution panels.

Core Product Advantages and Features
Corresponding busbar connection method
Designed specifically for the assembly method of direct busbar connection between contactors and overload relays, its dimensions perfectly match the clamping structure.
Strengthen protection against electric shock
Covering exposed terminal areas reduces the risk of maintenance or operation personnel accidentally touching live parts and improves the overall safety of the panel.
Lightweight
Weighing only about 0.077 kg and with packaging dimensions of about 77×151×51 mm, it does not take up any extra installation space.
Original German quality
Made in Germany, compliant with RoHS directives, and certified by multiple classification societies and international safety regulations.
project Specification
Product Type Terminal cover (electric shock protection cover for busbar connection)
Applicable housing S10 / S12
Applicable Products SIRIUS 3RT1, 3RB2 (including 3RB106 overload relay)
net weight 0.077 kg
Packaging size 77 × 151 × 51 mm
Packaging quantity 1 piece/pack
country of origin Germany
EAN code 4011209512467
Compliant with regulations RoHS

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