Designed and manufactured
to IEC 34-1 and NEMA MG1 (USA) mechanical and electrical standards
Available in IP 54, 44
and 23 enclosures with IEC B3, B5, B14 mounting provisions. Also
available in NEMA (USA) footed, face and flange mountings as well as
a wide variety of special and custom mountings.
Thyristor motors in
frames 71 through 112 have provisions for mounting a variety of B5
and B14 flange or faces and B3 bases. Tachometer mounting provisions
are also standard on each motor with adaptor packages for a variety
IEC motors have imperial
underwriters Laboratories (USA) component approval program, file
number E57948, guide number PRGY2, and by Canadian Standards
Association, file number LR33543
Full-fact metal rating
plate lists is a permanent record of motor data. Thyristor motors
have dual kW ratings listing 1,05 and 1,40 form factor output
capability and full load DC amperage for each kW rating.
Steel frames with rugged
high-pressure cast 380 alloy aluminum machined endshields, with
steel bearing seat inserts (IEC71 and larger) for precision
alignment and bearing life, accurate brush tracking and maximum
Ceramic permanent magnet
field, ferrite type, operate cooler and more efficiently than do
wound field motors. Four pole designs used in larger ratings.
Designed for ambient temperature range of -20◦C to 40◦C
IEC frame motors have a
terminal board in a cast, gasketed terminal housing. Larger low
voltage motors have machined studs for connections. jSmaller motors
have high temperature leads.
balanced armatures for quiet, smooth operation.
Class F & H insulation
materials used throughout with fusion welded, molded commutators for
accessible without disassembly of the motor, with integral constant
pressure springs and bi-directional brush holders assure longer
service before maintenance -- up to four times that of other DC
motors. Four brushes are used in larger low voltage motors.
interchanging armature connections and capable of dynamic braking
for faster stopping.
Sealed or shielded,
permanently lubricated, selected electric motor grade ball bearings
ar used for quiet operation and long life.