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T A S e r i e s O p e n C o r e a n d C o i l I n d u s t r i a l C o n t r o l T r a n s f o r m e r s
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
Q Constructed with high quality silicon steel lamination to minimize core losses and
increase efficiency.
Q Designs incorporate precision wound coils for improved regulation.
Q Primary fuse blocks and secondary fuse kits available and easily adaptable.
Q Series-parallel connecting links save wiring and labor costs.
Q Sturdy phenolic terminal panel protects the coil from foreign objects and mechanical damage.
Q Copper windings on all groups.
Q 130°C Insulation class. 80°C temperature rise.
Q Wire retention on both primary and secondary terminals.
Q Mounting plate adapts to various mounting dimensions.
Q Voltage regulation exceeds NEMA requirements.
Q UL Listed, CSA Certified.
Q Attractive finish, nameplate, and design features enhance the end product.
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 construction 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.
Primary Fuse Kit with Snap-
on Secondary Fuse Block
Secondary Fuse Clips
Jumper Link Connections
Integrally Mounted
Fuse Blocks