DRB 1500 VSD+ 3Ph 380-460 V 50/60 Hz, IEC

Atlas Copco DRB 1500 VSD+ – Roots booster with integrated VSD+ drive

Thanks to the frequency inverter, the DRB 1500 VSD+ reaches a shaft frequency of up to 80 Hz (4800 rpm) and thus a displacement of up to 1500 m³/h with a small size. With a DWS 450 VSD+ as backing pump, Atlas Copco states the following pumping speeds: at 100 mbar 641 m³/h, at 50 mbar 910 m³/h, at 25 mbar 1001 m³/h, at 10 mbar 1223 m³/h, at 5 mbar 1292 m³/h, at 1 mbar 1261 m³/h, at 0.1 mbar 1076 m³/h, at 0.01 mbar 642 m³/h, at 0.001 mbar 190 m³/h. The motor delivers 4 kW. Dimensions 941 × 496 × 592 mm (L × W × H), weight 242 kg, inlet and outlet DN 100 ISO-K.

Automatic speed control

The VSD+ controller monitors the load and adjusts the speed of the rotary lobes automatically. Overload and temperature protection are implemented in the controller; in addition, a vacuum relief valve returns over-compressed gas to the inlet.

Applications of the range

Atlas Copco lists, among others, high-speed packaging (skin packaging for food, pharmaceuticals, medical devices), drying and freeze drying in the food, pharmaceutical, dyestuff and chemical industries, the vacuum cooling of fruit, vegetables and flowers, and industrial processes such as altitude simulation, gas filling, catalyst manufacturing, leak testing and heat treatment.

Version

Ehrler & Beck lists the DRB 1500 VSD+ under part number 1905199800 for 380–460 V at 50 or 60 Hz (IEC). Atlas Copco marks the performance data as preliminary.

Features of the DRB VSD+ range

• Variable-speed (VSD+) up to 80 Hz or 4800 rpm: high pumping speed in a compact size
• Speed adapts automatically to the load; overload and temperature protection in the controller
• Motor rotor in the vacuum chamber: no oil-lubricated shaft seal between pumping chamber and oil chamber, no risk of leakage
• Vacuum relief valve as mechanical overload protection
• Operation via keypad, USB or Bluetooth; Modbus RTU as well as digital and analogue outputs for the plant control system
• Multi-pump control for simple system integration

Pumping speed 50Hz	1,500
Pumping speed 60Hz	1,500
Rated motor power 50Hz	4
Rated motor power 60Hz	4
Weight	242
Length	94.1
Width	49.6
Height	59.2
Inlet connection flange	DN 100 ISO-K
Outlet connection flange	DN 100 ISO-K
Noise level	68 dB(A)
Cooling method	Air cooling
Oil type	PRIME 100

Additional technical data