Siemens 3RT2038-1AP04 SIRIUS Power Contactor 80A 37kW 3P 230V AC

The Siemens 3RT2038-1AP04 is a SIRIUS 3RT2 series power contactor rated at 80 A and 37 kW at 400 V for AC-3/AC-3e duty. The 3-pole device is controlled by a 230 V AC, 50 Hz coil and includes 2 NO + 2 NC auxiliary contacts as standard, housed in size S2 with screw terminals for straightforward panel installation.

Technical specifications:

• MLFB: 3RT2038-1AP04
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type designation: 3RT2
• Size: S2
• Number of poles (main circuit): 3
• Rated current AC-3 at 400 V: 80 A
• Rated current AC-1 at 400 V, 40°C: 90 A
• Rated current AC-3 at 690 V: 58 A
• Operating power AC-3 at 400 V: 37 kW
• Operating power AC-3 at 690 V: 45 kW
• Maximum operating voltage (AC-3/AC-3e): 690 V
• Insulation voltage (main and auxiliary circuits): 690 V
• Surge voltage resistance: 6 kV
• Control supply voltage: 230 V AC, 50 Hz
• Operating range (coil voltage): 0.8 - 1.1 x rated
• Auxiliary contacts: 2 NO + 2 NC
• Terminal type: screw terminal
• Operating temperature: -25 ... +60°C
• Storage temperature: -55 ... +80°C
• Maximum installation altitude: 2,000 m
• Mechanical service life: 10,000,000 operating cycles
• Net weight: 1.071 kg
• Minimum main circuit conductor cross-section (AC-1): 35 mm²

Features and benefits:

• Operates across the full voltage range up to 690 V, covering AC-3, AC-3e, and AC-4 duty categories
• 10,000,000 mechanical operating cycle service life for high-frequency switching applications
• Integrated 2 NO + 2 NC auxiliary contacts eliminate the need for a separate add-on block in many applications
• Removable auxiliary switch block supports flexible configuration without replacing the base contactor
• Maximum operating frequency of 500 operations/h at AC-3 suits demanding automation cycles
• Apparent holding power of only 16 VA at 50 Hz reduces continuous coil energy consumption

Applications:

• Direct-on-line starting and switching of three-phase motors up to 37 kW at 400 V
• Motor starter assemblies in industrial switchgear and control panels up to 690 V
• Pump and fan motor control in HVAC and process plant installations
• Conveyor, compressor, and machine tool motor switching in manufacturing environments

Compliant with EN 60947-1. Part of the Siemens SIRIUS 3RT2 range.

Also known as: Siemens 3RT2038-1AP04, 3RT20381AP04, SIRIUS 3RT2 power contactor 80A.