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Watson-Marlow 620DuN and 620Du User Manual 10
Control range (turndown ratio) 0.1-265rpm (2650:1)
Supply voltage/frequency Filtered 100-120V/200-240V 50/60Hz 1ph
Maximum voltage fluctuation
±10% of nominal voltage. A well
regulated electrical mains supply is
required along with cable connections
conforming to the best practice of noise
immunity
Installation category
(overvoltage category)
II
Power consumption 250VA
Full load current <1.1A at 230V; <2.2A at 115V
Eprom version Accessible through pump software
Enclosure rating - 620DuN
IP66 to BS EN 60529; Equivalent to
NEMA 4X to NEMA 250* (indoor use).
Suitable for heavy industrial, process
and filthy environments. The drive uses
a Gore membrane vent to equalise the
pressure inside the enclosure and to
prevent ingress of water and corrosive
vapours.
Enclosure rating - 620Du
IP31 to BS EN 60529. Equivalent to
NEMA 2, suitable for indoor use.
Protected against dripping water and
falling dirt. May be wiped with a damp
cloth, but should not be immersed.
Pumphead options (620R models) 620R, 620RE, 620RE4
Pumphead options (620L models) 620L, 620LG
Operating temperature range 5C to 40C, 41F to 104F
Storage temperature range -25C to 65C, -13F to 149F
Maximum altitude 2,000m, 6,560ft
Humidity (non-condensing)
(620Du)
80% up to 31C, 88F, decreasing
linearly to 50% at 40C, 104F
Humidity (condensing) (620DuN) 10% - 100% RH
Weight See table on previous page
Noise <70dB(A) at 1m
Pump specifications
* Protect from prolonged UV exposure.