ACME ELECTRIC
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MILWAUKEE, WI
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800.334.5214
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acmetransformer.com
53
SECTION
TA SERIES OPEN CORE & COIL INDUSTRIAL CONTROL TRANSFORMERS
TA Series Open Core & Coil
Industrial Control Transformers
Industrial control transformers are used to reduce
supply voltages to 230 V or lower for the operation
of electromagnetic devices such as contactors,
solenoids, relays, and timers. They are especially
designed to accommodate the momentary current
inrush caused when electromagnetic components
are energized... without sacrificing secondary
voltage stability beyond practical limits.
Acme Industrial Control Transformers are
dry-type, step-down transformers with the
secondary control circuit isolated from the primary
line circuit to assure maximum safety.
Voltage regulation of Acme Industrial Control
Transformers exceeds standards recommended
by the National Electrical Manufacturers
Association. Secondary circuit voltage drop
between no-load and momentary overload
remains exceptionally low. This excellent
secondary circuit voltage regulation assures
reliable operation of electromagnetic
components and may permit the use of a smaller
and less expensive industrial control transformer.
FEATURES
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Constructed with high quality silicon steel
lamination to minimize core losses and
increase efficiency.
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Designs incorporate precision wound coils for
improved regulation.
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Primary fuse blocks and secondary fuse kits
available and easily adaptable.
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Series-parallel connecting links save wiring and
labor costs.
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Sturdy phenolic terminal panel protects the coil
from foreign objects and mechanical damage.
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Copper windings on all groups.
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130°C Insulation class. 80°C temperature rise.
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Wire retention on both primary and secondary
terminals.
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Mounting plate adapts to various mounting
dimensions.
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Voltage regulation exceeds NEMA requirements.
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UL Listed, CSA Certified.
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Attractive finish, nameplate, and design features
enhance the end product.
Integrally Mounted Fuse Blocks
Primary Fuse Kit with Snap-on
Secondary Fuse Block
Jumper Link Connections
Secondary Fuse Clips
Acme Industrial Control Transformers Meet
or Exceed UL, CSA, NEMA & ANSI
Acme Industrial Control Transformers 50 through 5000 VA are UL
Listed, File E79947 and CSA certified, File 7357.
Laminations
—High-permeability silicon steel continuously
annealed to minimize core losses.
Magnet Wire
—Copper magnet wire is coated with high
temperature-resisting insulating film.
Coils
—Precision wound by machine; total turns per coil
automatically counted.
Mounting
—Heavy steel mounting plates add strength to core con-
struction and provide firm mounting, slotted to facilitate installation.
Terminal Boards
—Sturdy phenolic terminal boards.
Sizing Primary Fuses:
Primary Amps < 2, fuse size is 300% of rated primary current.
Primary Amps 2< 9, fuse size is 167% of rated primary current.
Primary Amps > 9, fuse size is 125% of rated primary current.
Sizing Secondary Fuses:
Secondary Amps < 9, fuse size is 167% of rated secondary current.
Secondary Amps > 9, fuse size is 125% of rated secondary current.
