Overview
The Siemens 6SE6420-2UC12-5AA1 is an unfiltered MICROMASTER 420 frequency inverter drive designed for compact variable-speed motor control applications. This AC drive provides energy-efficient operation across diverse industrial environments, featuring robust protection ratings and intuitive parameter programming. The drive accepts single or three-phase input and delivers three-phase output, making it suitable for retrofit installations and new builds alike.
Key Features
- Compact form factor: 173 × 73 × 149 mm (H × W × D)
- IP20 protection rating for standard industrial enclosures
- Constant torque and variable torque operational modes
- 150% overload capacity for 60 seconds—handles brief peak demands
- Wide frequency range: 0–650 Hz output for flexible motor control
- Operating temperature: −10°C to +50°C without additional cooling
Technical Specifications
The 6SE6420-2UC12-5AA1 delivers 0.25 kW continuous power with overload tolerance and output current of 1.7 A at full load. Input accepts single or three-phase 200–240 VAC (±10%) at 47–63 Hz with input current of 3.2 A. The unfiltered design reduces size and cost while maintaining regulatory compliance for most industrial settings.
Typical Applications
- Pump and fan speed control in HVAC systems
- Conveyor belt drive regulation
- Machine tool spindle speed management
- Compressor and blower motor control
- Material handling and packaging equipment
Compatibility & Replacements
Compatible With
- Standard three-phase AC squirrel-cage induction motors up to 0.25 kW
- Single or three-phase power sources (200–240V, 50/60 Hz)
- Industrial control systems using 0–10V analog signals or relay inputs
- Standard industrial enclosures and DIN rail installations
Replaces / Drop-In Replacement For
The 6SE6420-2UC12-5AA1 can replace earlier MICROMASTER series models in the same frame size and power class. Verify motor nameplate voltage and frequency before substitution. Consult Siemens technical documentation or your system integrator for legacy drive replacements to ensure pin compatibility.
Works With
- MICROMASTER 420 Operator Panels (AOP, BOP) for local control
- Siemens SIMATIC S7 PLC systems via analog and digital I/O
- Standard 0–10V control signal sources
- Relay-based safety circuits and motor overload protection
