The ABB 1SDA058973R1 is a SACE Emax 2 circuit breaker switch-disconnector. Here are the key details:

• Model: E3N/MS 2500, which refers to the series and current rating of the device.
• Current Rating: 2500A, meaning it is designed to handle up to 2500 amps of electrical current.
• Poles: Three-pole configuration (3P), used in three-phase systems to disconnect or protect all three phases.
• Function: This device is a combination of a switch and a disconnector, providing both control and protection by disconnecting the electrical circuit in case of overload or fault conditions.
• Mounting: It is a fixed type unit, meaning it is designed for installation in a stationary position within electrical panels or distribution boards.
• Terminal Configuration: Rear horizontal terminals, allowing for more compact and easier cable management at the rear of the device.