Leybold NT 341 MCT Turbomolecular Pump Controller

The Leybold NT 341 MCT (Part Number: 85734) is a high-reliability electronic drive unit and power supply designed to drive and manage classic Leybold TURBOVAC series turbomolecular vacuum pumps equipped with ceramic ball bearings and active temperature management systems. Operating as a rack-mountable controller, the NT 341 MCT converts single-phase AC line power into variable-frequency drive current to maintain optimal rotor speeds up to 36,000 RPM.

The "MCT" designation indicates specialized integration features, including motor drive output, dynamic heating/cooling regulation, and remote monitoring terminal connections. The controller incorporates active electronic protection against over-temperature, current overloads, and improper foreline pressure, making it ideal for laboratory UHV applications, mass spectrometry, and semiconductor processing.

Technical Specifications

Compatible Turbo Pump Series

The NT 341 MCT serves as a primary electronic controller for classic Leybold TURBOVAC turbomolecular pumps, including:

• TURBOVAC 340 M / 340 MCT Series

• TURBOVAC 151 / 151C, 361 / 361C, 600 / 600C Series

• TURBOVAC 1000 / 1000C Series (when configured within power output bounds)

Key Features & Lab Benefits

• Integrated Temperature Management (MCT): Controls external heating jackets and cooling fans directly to manage condensation of low-volatility process gases inside the turbopump housing.

• Selectable Line Voltage: Multi-tap transformer architecture accommodates major global AC voltage standards via standard fuse block jumpers.

• Comprehensive Fault Diagnostics: Front-panel indicators and remote interlock terminals provide immediate monitoring of motor temperature, rotor acceleration, and speed thresholds.

• Robust Analog/Digital Remote Control: Enables automated tool interlock handshake (START, STOP, NORMAL SPEED REACHED, ERROR) with main PLC control systems.