Siemens 400V AC contactor, 3-pole, size S0, 1NO+1NC, 7.5kW Part number 3RT2025-1AV00

Product Overview

Siemens SIRIUS 3-Pole Power Contactor, 17 A / 7.5 kW (3RT2025-1AV00) is a compact contactor designed for switching of three-phase motors and general AC loads. Belonging to the SIRIUS 3RT2 family, it supports AC-3 applications up to 7.5 kW at 400 V and includes integrated auxiliary contacts for feedback and interlocking. Its S0 frame size ensures efficient panel space usage, making it suitable for motor starters, reversing starters, and automation systems.

Key Features

• 3-pole power contactor for motor and load switching
• Rated operating current: 17 A (AC-3 at 400 V)
• Rated motor power: 7.5 kW at 400 V
• Built-in auxiliary contacts: 1 NO + 1 NC
• Screw terminal connection for secure wiring
• Compact S0 size — space-saving installation
• High electrical and mechanical switching endurance
• Suitable for panel or DIN-rail mounting

Technical Specifications

• Article Number: 3RT2025-1AV00
• Product Type: 3-Pole Power Contactor
• Main Contacts: 3-pole (3NO power contacts)
• Auxiliary Contacts: 1 NO + 1 NC
• Rated Current (AC-3): 17 A at 400 V
• Rated Motor Power: 7.5 kW @ 400 V AC-3
• Rated Operational Voltage: up to 690 V
• Terminal Type: Screw terminals
• Contactor Size: S0
• Mounting: DIN-rail or base-plate
• Typical Coil Supply Variant: AC or DC depending on version (this unit variant code indicates coil type — confirm coil voltage when ordering)

Applications

Used for switching and control of motors, pumps, fans, HVAC equipment, conveyor drives and general industrial loads. Suitable for integration into motor starters, reversing circuits, control cabinets and automation systems requiring reliable AC-3 rated switching performance with auxiliary signal feedback.