What this terminal cover does
The 3RA6880-3AB is a set of two terminal covers for the SIRIUS 3RA6813-8AB/AC 3-phase infeeds handling 50/70 mm² cable. They snap onto the DIN rail — no tools needed for the cover itself, just a screwdriver for the infeeds underneath.
DIN-rail fit and panel space
At 70 mm wide, 60 mm tall, and 28 mm deep, this cover adds minimal depth to the infeed assembly — important when the gland plate is tight.
Environmental limits that matter
Rated for operation from -20 °C to +60 °C, so it's fine in an unheated enclosure as long as the panel stays above freezing. Storage and transport range goes from -55 °C to +80 °C — no special climate packaging needed if the job sits on a truck or in a warehouse. Vibration resistance is specified at 2 m/s² from 5.8 to 500 Hz, with 15 mm displacement below 5.8 Hz — covers most industrial machine environments.