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A m v e c o T o r o i d a l S o l u t i o n s
Acme Electric’s Amveco brand specializes in the design and construction of class-leading toroid magnetics, for the most
challenging applications, including the medical and communications industry.
Small Size
Most toroids are smaller than their E-I transformer counter- parts. They are particularly well suited where low height is a
consideration.
Low Stray Magnetic Field
Toroids have no air gaps since the primaries and secondaries are wound uniformly around the entire core. As a result,
toroids emit very low radiated magnetic fields. This makes the toroid ideal for applications involving high sensitivity circuitry.
Low Mechanical Hum
The core of a toroid is formed from a single strip of grain- oriented electrical grade silicon steel tightly wound in the form of a
clock spring with the ends spot-welded in place. The copper wire is wound over polyester film, forming a silent, stable unit
without the use of environmentally unfriendly glues or varnishes.
Low Weight
Toroids weigh up to 50% less, than conventional laminated transformers thanks to their higher efficiency levels. Low weight
simplifies end product design by reducing mounting hardware and supporting enclosure requirements.
Low No-Load Losses
Compared to conventional E-I transformers, toroids exhibit extremely low no-load losses. In applications where a circuit is in
a “stand-by” mode for long periods, the potential cost reduction for power can be significant, sometimes 80-90%.
High Efficiency
Due to its unique construction, toroids are typically between 15 and 30% more efficient than the conventional type.
Low Operating Temperature
Since most of the losses in a toroid are copper wire, the toroid cools off quicker than the conventional E-I type with more iron.
At half the load, the toroid’s temperature rise is only about 30% of what it is at full load.
Easy To Mount
A single-center screw easily and quickly mounts the toroid, avoiding costly mechanical design and practical problems
associated with conventional E-I-laminated transformers.
Safety Standards
Acme Electric proudly holds Certificates from both North American and International Safety Standard Testing Laboratories.
Q UL 506 General Purpose Transformers (File # E 122978)
Q UL 1950 Information Technology Equipment, Electrical Business Equipment (File # E 138299)
Q UL60601-1 Medical and Dental Equipment (File # E 138299)
Q UL 1446, Class B, Class F and Class H Insulation Systems (File # E 123069)
Q CSA 22.2 No. 66-1988 Specialty Transformers (File # LR 86989)
Q CSA 22.2 No. 601.1 M90 Medical Standard for Canada (File # E 138299)
Q IEC 601.1 (Medical Standard for International Installations) (File # E 152649)