Siemens 3RT2035-1AP00 SIRIUS Power Contactor 41A 18.5kW 230V AC

The Siemens 3RT2035-1AP00 is a SIRIUS 3RT2 series power contactor for AC-3e/AC-3 duty, rated at 41 A and 18.5 kW / 400 V. It features a 3-pole main circuit with screw terminals, a 230 V AC / 50 Hz control coil, and an integrated auxiliary contact block providing 1 NO and 1 NC contact. Size S2, it covers operating voltages up to 690 V.

Technical specifications:

• MLFB: 3RT2035-1AP00
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type: Power contactor
• Type designation: 3RT2
• Size: S2
• Poles: 3
• Rated current (AC-3/AC-3e, 400 V): 41 A
• Rated current (AC-3/AC-3e, 690 V): 24 A
• Rated power (AC-3, 400 V): 18.5 kW
• Rated power (AC-3, 500 V): 22 kW
• Maximum operating voltage (AC-3): 690 V
• Control supply voltage: 230 V AC, 50 Hz
• Control voltage operating range: 0.8 - 1.1 x rated value
• Auxiliary contacts: 1 NO + 1 NC
• Terminal type: Screw terminal
• Insulation voltage (main and auxiliary circuits, pollution degree 3): 690 V
• Surge voltage resistance (main and auxiliary circuits): 6 kV
• Pick-up power: 190 VA (50 Hz)
• Holding power: 16 VA (50 Hz)
• Mechanical service life: 10,000,000 operating cycles
• No-load switching frequency: 5,000 1/h
• Operating frequency (AC-3): max 1,000 1/h
• Minimum conductor cross-section (AC-1 rated): 16 mm²
• Ambient temperature (operation): -25 to +60 °C
• Ambient temperature (storage): -55 to +80 °C
• Maximum installation altitude: 2,000 m

Features and benefits:

• AC-3e/AC-3 rating at 41 A / 18.5 kW (400 V) allows direct motor switching without derating at standard industrial voltages
• Integrated 1 NO + 1 NC auxiliary contacts provide control circuit feedback without a separate add-on block
• 10,000,000 mechanical operating cycles extend maintenance intervals in high-cycle applications
• 6 kV surge voltage resistance on both main and auxiliary circuits guards against transient overvoltages
• Wide operating temperature range of -25 to +60 °C accommodates use in demanding industrial enclosures

Applications:

• Starting and stopping squirrel-cage motors in industrial machinery up to 18.5 kW at 400 V (AC-3/AC-3e duty)
• Motor control in pumps, compressors, and HVAC equipment
• Main switching element in motor control centers and switchgear rated up to 690 V
• Automation panels requiring integrated auxiliary signal contacts for interlocking or indication

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

Also known as: Siemens 3RT2035-1AP00, SIRIUS 3RT2 power contactor S2 41A.