About Bemag

Used Bemag Transformers for Sale

Resell CNC is your Simple. Reliable. and Trusted.® source for used Bemag industrial transformers — including dry-type distribution transformers, isolation transformers, autotransformers, step-up and step-down transformers, custom magnetics, and specialty power conditioning equipment. We carry Bemag transformers across the full product range in single-phase and three-phase configurations, with KVA ratings from small distribution units through large industrial power transformers.

Bemag Transformer Inc. was founded in 1995 in Farnham, Quebec, Canada, initially producing distribution-type transformer units. Over the following years the company expanded its product line to include autotransformers for non-linear loads and custom magnetic solutions for specialized applications. Bemag built a strong reputation in the North American electrical equipment market as a designer and manufacturer of low and medium voltage dry-type transformers for commercial and industrial facilities. In July 2011, Bemag was acquired by Pioneer Power Solutions, Inc., a manufacturer of specialty electrical equipment serving the utility, industrial, commercial, and energy markets. The acquisition combined Bemag with Pioneer's Jefferson Electric subsidiary, creating full US and Canadian market coverage for dry-type transformer products. Bemag transformers are widely installed in manufacturing plants, CNC machine shops, data centers, commercial buildings, and industrial facilities across North America, providing the reliable power distribution and voltage conversion that production equipment requires.

Looking to sell your Bemag transformers? Resell CNC buys used Bemag equipment nationwide, covering any KVA rating, any configuration, and any condition. Free appraisal within 24 hours, competitive offers, and we handle all rigging and transportation. Call (844) 478-8181 or email sales@resellcnc.com.

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Bemag Dry-Type Distribution Transformers

Bemag's core product line consists of low and medium voltage dry-type distribution transformers in single-phase and three-phase configurations. These units convert incoming facility power to the voltages required by CNC machines, machining centers, welding equipment, and other industrial loads. Common primary voltages include 208, 240, 416, 480, and 600 volts, with secondary voltages spanning 120, 208, 240, 277, 380, 480, and higher medium-voltage outputs. NEMA-rated enclosures protect the transformer in shop-floor environments.

Bemag Isolation & Autotransformers

Bemag isolation transformers provide electrical separation between primary and secondary circuits, protecting sensitive CNC controls and electronic equipment from power line noise, transients, and ground faults. Bemag autotransformers deliver efficient voltage conversion for non-linear loads common in manufacturing environments with variable frequency drives, servo motors, and switching power supplies. Step-up and step-down configurations handle voltage matching between utility supply and equipment requirements.

Bemag Custom Magnetics

Beyond standard transformer products, Bemag designs and builds custom magnetic solutions for specialized industrial applications. Custom units address unique voltage, frequency, impedance, or form factor requirements that standard catalog products cannot satisfy. These custom magnetics serve OEM equipment builders, process automation systems, and specialty manufacturing installations.


Founded	1995, Farnham, Quebec, Canada
Parent Company	Pioneer Power Solutions, Inc. (acquired 2011)
Sister Brand	Jefferson Electric (combined dry-type transformer group)
Best Known For	Low and medium voltage dry-type transformers, custom magnetics
Product Types	Distribution, isolation, autotransformers, step-up/down, custom magnetics
Configurations	Single-phase and three-phase, NEMA-rated enclosures, multiple KVA ratings
Industries Served	Manufacturing, CNC machine shops, commercial, utilities, energy, data centers

What to Look for When Buying a Used Bemag Transformer

Bemag dry-type transformers are built for continuous industrial duty with high-quality core and coil assemblies, NEMA-rated enclosures, and conservative temperature rise ratings. Used transformers can deliver years of reliable service when properly evaluated. Here is what to inspect on used units.

Check the winding insulation and condition. Dry-type transformers rely on insulation integrity for safe, efficient operation. Perform an insulation resistance (megger) test between windings and between each winding and ground. Low readings indicate moisture absorption, contamination, or insulation breakdown. Visually inspect accessible windings for discoloration, charring, cracking, or evidence of overheating that could compromise long-term reliability.

Measure voltage ratios and tap settings. Verify that the transformer produces correct secondary voltage at rated primary input. Bemag transformers include adjustable voltage taps on the primary winding (typically 2.5% increments) to compensate for facility supply variations. Confirm that tap connections are clean, tight, and set to the correct position for your supply voltage. Measure output under no-load and loaded conditions if possible.

Inspect the enclosure and cooling system. Dry-type transformers dissipate heat through natural convection, so adequate ventilation is critical. Check enclosure panels, louvers, and screens for damage, corrosion, or blockage. Verify that the NEMA rating matches your installation environment (NEMA 1 for indoor, NEMA 3R for outdoor/weather-resistant). Inspect terminal connections, bus bars, and wiring access points for signs of overheating or corrosion.

Verify the nameplate and electrical ratings. Confirm that the KVA rating, primary and secondary voltages, phase configuration, frequency, impedance, and temperature rise class match your application requirements. Bemag transformers serve a wide voltage range (208V through 4160V and beyond). Mismatched voltage or KVA ratings can cause overheating, voltage regulation problems, or equipment damage.

Bemag Distribution Transformers

Bemag distribution transformers form the backbone of electrical systems in manufacturing facilities, converting utility supply voltage to the levels required by production equipment. Available in three-phase and single-phase configurations, these units handle standard industrial voltages including 480V to 208/120V, 600V to 208/120V, 480V to 277/480V, and other common step-down and step-up combinations. KVA ratings range from small 15 KVA units for individual machine feeds through 500 KVA and larger units for entire production lines or facility main distribution. Dry-type construction eliminates the fire and environmental risks associated with oil-filled transformers, making Bemag units suitable for installation inside manufacturing buildings and CNC machine shops.

Bemag Isolation Transformers

Bemag isolation transformers provide galvanic separation between the primary supply and secondary load circuits. In CNC machine shop environments, isolation transformers protect sensitive controls, servo drives, and electronic systems from power line noise, voltage spikes, and ground loop currents. Isolation also provides a separately derived grounding system that can improve personnel safety and reduce nuisance ground fault trips. Bemag isolation transformers are available in the same voltage and KVA ranges as distribution units, with standard NEMA enclosures.

Bemag Autotransformers & Custom Magnetics

Bemag autotransformers provide efficient voltage conversion where full isolation is not required. The shared winding design delivers higher efficiency and lower cost per KVA than isolation transformers, making autotransformers a practical choice for voltage buck or boost applications and for feeding non-linear loads common in shops with variable frequency drives and inverter-duty motors. Bemag's custom magnetics division designs and builds specialty transformers for unique voltage, impedance, frequency, or physical requirements, serving OEM equipment builders and specialized process applications.

How to Sell Your Used Bemag

Bemag transformers hold solid resale value thanks to dry-type construction, long operational life, and consistent demand from manufacturing facilities expanding, relocating, or upgrading their electrical infrastructure. Three-phase units in the 75 KVA to 500 KVA range are in particularly high demand on the secondary market.

Resell CNC buys used Bemag transformers, every KVA rating and configuration, nationwide.

Contact us — call (844) 478-8181 or email sales@resellcnc.com.
Free appraisal within 24 hours, no obligation.
Accept the offer — we handle rigging, transport, and logistics.

Frequently Asked Questions About Used Bemag Transformers

Are used Bemag transformers reliable?

Yes. Bemag has manufactured dry-type transformers since 1995. Dry-type construction has no oil to leak, degrade, or require environmental containment. With intact winding insulation and proper ventilation, a used Bemag transformer can deliver decades of additional service. Insulation resistance testing confirms the condition of a used unit before purchase.

What is the relationship between Bemag, Pioneer, and Jefferson Electric?

Bemag Transformer Inc. was acquired by Pioneer Power Solutions in July 2011. Pioneer also owns Jefferson Electric. The combined group provides full US and Canadian market coverage for dry-type transformer products. Used units may carry Bemag or Pioneer/Jefferson branding depending on manufacturing date.

What should I inspect before buying a used Bemag transformer?

Perform insulation resistance (megger) testing on all windings. Verify voltage ratios and tap settings. Inspect the enclosure for damage, corrosion, or blocked ventilation. Confirm that nameplate KVA, voltage, phase, and temperature rise ratings match your application. Check terminal connections for signs of overheating.

What size Bemag transformer do I need for my CNC shop?

Transformer sizing depends on your total connected load, demand factor, and future expansion plans. Contact Resell CNC at (844) 478-8181 and provide your machine list and facility voltage requirements. We can match you with the correct used Bemag unit.

What Bemag products hold their value best?

Three-phase dry-type transformers in the 75 KVA to 500 KVA range maintain the strongest resale values due to broad industrial demand. Isolation transformers command premiums over standard distribution units. Call (844) 478-8181 for current valuations.

Does Resell CNC offer financing on used Bemag transformers?

Yes. Resell CNC offers flexible financing options to help your business acquire the equipment it needs. Contact us at (844) 478-8181 to discuss terms.

How do I sell my used Bemag transformer?

Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy all Bemag transformers nationwide, from small single-phase units through large three-phase industrial installations. Free appraisal within 24 hours.