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400B SERIES ELECTRIC DIAPHRAGM PUMPS
AC Power
DANGER
All AC pumps will operate at the rated nameplate voltage.
AC power should be supplied to the pump from a dedicated circuit with a 15 amp circuit protection. No other equipment should be powered by
this circuit.
Wiring must be of sufficient size to carry the correct current for the pump.
Voltage drop will vary with distance to pump and size of wire. Refer to the National Electrical Code (NEC) or local codes for voltage drop
compensation to be sure you are using the correct size wire for your application. Undersized wires can overheat and cause a fire.
Ensure proper grounding to avoid electrocution.
Models of 400B Series pumps with explosion-proof motors are classified for Class 1, Division 1 locations. It is highly recommended that any
repairs be done by an authorized distributor to avoid voiding the warranty. It is important to maintain the explosion-proof integrity of the motor
and system components.
Electrical wiring installation should be performed ONLY by a licensed electrician in compliance with local, state, and national electrical codes
(NEC/ANSI/NFPA 70, NFPA30, and NFPA 30A) as appropriate to the intended use of the pump.
CAUTION
Voltage drop in wiring varies depending on the distance from the electrical source to the pump and the gauge of the wire used. Sotera recommends
referring to national, international, or local electrical codes to ensure the wire is of the correct size for your application. The following chart is to be
used as a reference and is not a substitute to electrical codes:
Available AC Voltage Classes
• 115V AC, 60Hz, 2.5 amps, 1/4 HP (185 Watts) motor, standard non-explosion proof.
• 115V AC, 60Hz, 2.5 amps, 1/4 HP (185 Watts) motor, explosion proof uL listed.
• All non-explosion proof 110V AC models come with a preinstalled power cable. These models will terminate with a type B (3 pin) grounded,
15A plug that is compatible with type B sockets.
• 110V AC explosion-proof models will not have a power cord installed but may include a power cable separately, depending on model configuration
as outlined on pages 14-15.
sotera.com
Maximum Linear Distance (FT) of Solid and Stranded Copper Wire Length by Gauge
AWG
16
Solid
39
Wire
Stranded
38
14
12
10
62
99
158
61
96
154
OPERATION MANUAL
8
6
4
250
245
389
620
7
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