MZ 2C VARIO select, IN

MZ 2C VARIO select is a two-stage VARIO chemistry diaphragm pump intended for laboratory vacuum work with chemically demanding media. The unit operates on 200-230 V at 50-60 Hz and is supplied with an IN power cable, making it straightforward to integrate into existing lab power setups. As a compact chemistry membrane pump it supports controlled vacuum generation where solvent vapours and aggressive gases are present. The pump is delivered as one piece, with a net weight of 15 kg and a gross weight of 17.8 kg, reflecting a robust industrial build suitable for continuous bench or system use. Originating from Germany and offered by manufacturer VACUUBRAND, the MZ 2C VARIO select combines the VARIO control concept with a two-stage diaphragm design for stable performance in chemical process environments. Its configuration addresses typical laboratory needs for reliable, oil-free vacuum without introducing unnecessary complexity. The clear electrical rating and regional cable option simplify installation and compliance with local laboratory infrastructure requirements.

This article is part of Vacuum pumps, in Pumps, vacuum & evaporation.

Key features

• Pack size: 1 pc
• Product type: VARIO chemistry diaphragm pump
• Model: MZ 2C VARIO select
• Stages: Two-stage
• Voltage: 200-230 V / 50-60 Hz
• Power cable: IN
• Manufacturer: VACUUBRAND
• UNSPSC: 41104900
• Max. pumping speed 50 Hz: 2.8 m³/h
• Max. pumping speed 60 Hz: 1.65 cfm
• Ultimate vacuum: 7 mbar / 5 torr
• Ultimate vacuum with gas ballast: 12 mbar / 9 torr
• Number of heads: 2
• Number of stages: 2
• Vacuum controller: VACUU·SELECT
• Lower ambient temperature (operation): 10 °C
• Upper ambient temperature (operation): 40 °C
• Lower ambient temperature (storage): -10 °C
• Upper ambient temperature (storage): 60 °C
• Max. back pressure (abs.): 1.1 bar
• Inlet connection: Hose nozzle DN 8-10 mm
• Outlet connection: Hose nozzle DN 8-10 mm
• Rated motor power: 0.53 kW
• Protection class IEC 60529: IP 20
• Dimension L in mm: 243 mm
• Dimension B in mm: 243 mm
• Dimension H in mm: 245 mm
• Weight: 14.3 kg
• Noise (sound pressure level) in dBA at 50 Hz or 1500 rpm/62% (VARIO)/1500 rpm (VARIO-SP)/12500 Upm (VACUU·PURE®): 43 dBA
• ATEX conformity: II 3/- G Ex h IIC T3 Gc X Internal Atm. only
• NRTL certification: No
• Items supplied: Pump completely mounted, ready for use, with manual.
• Rated mains voltage range 1: 200-230 V
• Mains frequency 1: 50-60 Hz
• Interface: Ethernet (RJ45): Modbus TCP / USB (Type A): Data transfer, software update, RS-232 (additional adapter required)
• Technical Information Sheet: