Watson-Marlow 620U - Manual (Page 12)

Watson-Marlow 620UN, 620U, 620SN, 620S User Manual 12
* Protect from prolonged UV exposure.
Pump specifications
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 - 620UN, 620SN
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 - 620U, 620S
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, 620RE, 620RE4
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)
(620U, 620S) 80% up to 31C, 88F, decreasing
linearly to 50% at 40C, 104F
Humidity (condensing)
(620UN, 620SN)
10% - 100% RH
Weight See table on previous page
Noise <70dB(A) at 1m