Overview
The Siemens SIRIUS 3RT2027-1NP30 is a high-performance, compact power contactor from the trusted SIRIUS modular system, specifically designed for switching motors up to 15 kW at 400 V (AC-3/AC-3e). This robust, 3-pole contactor in Size S0 features a wide-range 200-280 V AC/DC control voltage with an integrated varistor for surge suppression, ensuring reliability and flexibility in global applications.
It comes equipped with convenient screw terminals for secure wiring and includes 1 NO (Normally Open) + 1 NC (Normally Closed) auxiliary contacts for signaling and interlocking circuits. It is engineered for industrial control panels, machine building, and various motor-switching tasks, offering excellent performance, high contact reliability, and a long mechanical service life.
Key Technical Specification
- Product Number: 3RT2027-1NP30
- Contactor Size: S0
- Rated Operational Current (AC-3e/AC-3, 400 V): 32 A
- Rated Operational Power (AC-3, 400 V): 15 kW
- Number of Poles: 3-pole (Main Circuit)
- Control Supply Voltage (Us): 200…280 V AC/DC (Wide-range Coil)
- Coil Protection: Integrated Varistor (Surge Suppression)
- Auxiliary Contacts: 1 NO + 1 NC (Integrated)
- Terminal Type: Screw Terminals
- Series: SIRIUS 3RT2
- Standards: IEC, UL/CSA Approved, IE3/IE4 Ready
Benefit and Advantages
- Global Versatility: Wide-range AC/DC control voltage (200-280V) simplifies stock-keeping and supports diverse international installations.
- Enhanced Protection: Integrated varistor provides built-in surge suppression, protecting the control circuit and increasing device longevity.
- Space-Saving Design: The compact Size S0 design allows for efficient use of panel space.
- High Reliability: Part of the modular SIRIUS system, ensuring coordinated performance and high contact reliability for switching motors.
- Simple Wiring: Features reliable screw terminals for the main and auxiliary circuits.
- Pre-Tested Integration: Optimally coordinated with other SIRIUS components (e.g., 3RV2 motor circuit breakers) for fast, tested load feeder solutions.
Application
The Siemens 3RT2027-1NP30 power contactor is ideal for switching:
- Standard and high-efficiency IE3/IE4 motors
- Motor loads in heating, ventilation, and air conditioning (HVAC) systems
- Pumps, fans, and conveyor systems
- Resistive loads (AC-1) and general industrial switching tasks
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