3RT1276-6AU36 – Siemens 3-Pole Vacuum Contactor 500A 240-277V

3RT1276-6AU36

3RT1276-6AU36 is a Siemens SIRIUS vacuum contactor designed for reliable motor control and power distribution applications. This 3-pole contactor features a 500 A rated current with a 250 kW power rating at 400 V, making it suitable for industrial motor switching and AC-3e/AC-3 duty cycle applications. The unit operates with a 240-277 V AC coil (50-60 Hz) and includes conventional auxiliary contacts configured as 2 NO + 2 NC for flexible control logic integration. The vacuum design provides superior arc suppression and extended contact life compared to air-break contactors, ensuring reliable performance in demanding industrial environments.

• Rated Current: 500 A
• Power Rating: 250 kW at 400 V
• Poles: 3-Pole
• Coil Voltage: 240-277 V AC (50-60 Hz)
• Auxiliary Contacts: 2 NO + 2 NC
• Duty Cycle: AC-3e/AC-3
• Contact Type: Vacuum
• Series: SIRIUS 3RT12
• Main Circuit Configuration: Conventional

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Specifications

• Part Number: 3RT1276-6AU36
• Manufacturer : Siemens
• Brand : Siemens
• Category : Motor Control
• Item Subcategory : Contactor
• Section : Vacuum Contactor
• Family : Sirius
• Type : 3RT12
• Voltage : 600
• Amperage : 500
• Phase : 3
• Poles : 3
• Coil Voltage Maximum : 277
• Coil Voltage Minimum : 240

Product Data

• UPC : 754554773285
• GTIN : 00754554773285
• Weight : 25