Terms & Conditions
Rex Limited Warranty
WARRANTIES
Rex warrants that equipment supplied by it to be free from defects in materials and workmanship for a period of one (1) year from date of shipment. If within such period any such equipment shall be proved to Rex's satisfaction to be so defective, such equipment shall be repaired or replaced at Rex's option. The obligation of Rex hereunder shall be limited solely to the repair and replacement at its factory, of products that fall within the foregoing limitations and it shall be conditioned upon receipt by Rex of written notice within the warranty period of any alleged defects of deficiencies. No products shall be returned to Rex without prior consent. Rex shall not be responsible for shipping charges incurred, whether through return of defective items to its factory, or return of repaired of replacement items to the user. Rex cannot assume responsibility or accept invoice for unauthorized repairs to its products, even though defective. This warranty applies only to units proven defective under normal use, and does not apply to improper installation or alteration. Acceptance may be expressly provided in an authorized writing by Rex. Rex shall not be subject to any other obligations or liabilities whatsoever with respect to equipment supplied by Rex or services rendered by Rex. This warranty is void on all products supplied by Rex if full payment is not received on such products within sixty (60) days of shipment date. THE
FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES EXCEPT WARRANTIES OF TITLE, INCLUDING, BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
CONSEQUENTIAL DAMAGES
Anything to the contrary herein contained not withstanding, REX SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL, CONTINGENT OR INCIDENTAL DAMAGES WHATSOEVER.
RETURNED GOODS, MATERIAL or EQUIPMENT
Authority for return must first be obtained from Rex, if credit is to be allowed on all unused goods returned to the factory by the purchaser for reasons of its own. In addition to a restocking charge, the purchaser must pay the return transportation expense plus refurbish charges. No return for credit is accepted by Rex on used goods and custom-designed or special products.
Newsletter Subscription
Careers
Rex Power Magnetics is continually looking to hire new talent to support our growth, as well as our goals for quality, continual improvement, and manufacturing excellence. We seek passionate, motivated individuals, who are willing to apply their skills and experience. All of our operations are at our central facility, in Concord (Vaughan), Ontario. Roles include factory assembly roles, managerial, design and engineering, customer support, and administrative.
There are no specific postings at this time, but interested persons are invited to send their resume and availability directly to our management by completing and submiting the form below.
Engineering
Support: Engineering
Custom Distribution Transformers
Rex Power Magnetics specialized in custom application transformers. Our engineering team is always up to the challenge to custom design specialty transformers for our customer's unique applications. With a centralized design and production facility, we can quickly analyze the specific application needs, and translate those to a finished product within weeks instead of months. Whether the custom requirements are as simple as custom enclosure sizes, or a combination of custom bus work, specific electrical characteristics, and integration with other equipment, our design team is ready for the challenge.
- Rectifier duty transformers
- Traction duty transformers
- Excitation transformers
- Multi-phase drive/inverter duty transformers
- Interphase transformers
- Grounding transformers (1ph and 3ph Zig Zag)
- Low EMF transformers
- Motor starter autotransformers
- Mobile & temporary power transformers
- Corrosion resistant transformers
- Seismic rated transformer
Certificates & Documents
- USMCA Certificate of Origin
- W-8BEN-E Form - Certificate of Status of Beneficial Owner for US tax withholding and reporting (Entities)
- ISO 9001:2015 Certificate
- CSA Certificate of Qualification(CATEGORY PROGRAM FOR CERTIFICATION)
- CSA Certificate of Qualification(ENERGY EFFICIENCY VERIFICATION PROGRAM)
- ABS Certificate of Design Assessment
- ABS Certificate of Manufacturing Assessment
- ABS Product Approval
- Canadian Welding Bureau Certificate
- Seismic Qualification and Certification
- Corrosion Protection for Enclosures
- UL Listings:
- Industrial Control Panels
- Instrument Transformers Over 600 Volts - Component
- Instrument Transformers Over 750 Volts Certified for Canada - Component
- Dry Type Power and General-purpose Transformers
- Dry Type Power and General-purpose Transformers - Component
- Power Circuit and Motor-mounted Apparatus - Component
- Power Circuit and Motor-mounted Apparatus Certified for Canada - Component
- Dry Type Distribution Transformers, Over 600 Volts
- Transformers, General Purpose
- Transformers, General Purpose - Component
- Certificate of Compliance - RoHS Declaration
- Conflict Minerals Regulation USA
- California Proposition 65 Compliance
- Prohibition of PBT - EPA regulation TSCA Section 6(h) Compliance
Maintenance, Operation & Installation Instructions
English
- TOTALLY ENCLOSED (NON-VENTILATED) DISRTIBUTION TRANSFORMERS
- ENCAPSULATED DISTRIBUTION TRANSFORMERS
- GENERAL PURPOSE DISTRIBUTION TRANSFORMERS
- POWER TRANSFORMERS
- CONTROL POWER TRANSFORMERS
- INDUSTRIAL CONTROL TRANSFORMERS
- MINI POWER CENTERS
- AIR CORE REACTORS
French
- TRANSFORMATEURS DE TYPE SEC POLYVALENTS
- TRANSFORMATEURS DE TYPE SEC ENCAPSULÉS
- TRANSFORMATEURS DE TYPE SEC FERMÉS
- TRANSFORMATEURS DE PUISSANCE À SEC
- FILTRE AMORTISSEUR R.C.
Catalogs and Brochures
Efficiency Comparator
Rex Power Magnetics' Efficiency and Payback Comparator for low voltage distribution and medium voltage power transformers can be utilized to compare the performance of various tranformers with known no load and load losses. the comparitor will graph the efficiency curve of up to three transformers, and if the cost of electricity and expected loading are entered, it will calculate the operation cost and payback between the transformers.
Low Voltage Distribution Transformer Comparitor | Medium Voltage Power Transformer Comparitor | |
How to use the comparator?
Download the Zip file by clicking on the image of Low Voltage (below 600V) or Medium Voltage Transformer Comparator. Unzip the file and save the .exe file on your desktop or other folder.
This software calculates a comparison of performance and total cost payback of transformers of different efficiency depends of Load Loss, cost elecricity and initial transformer cost. Complete the information required in the boxes, choose you kVA rate and press button "Compare Efficiency" or "Compare Cost".
Custom Power Transformers
The following is a list of magnetic devices built for specialized customer requirements in recent years:
- Variable-output high-current test set for testing circuit breakers
- High Capacity Neutral-Grounding Zig-Zag transformer
- Heavy clamped and reinforced cores for Inductive heating
- Transformer mated to an automatic drive-controlled vacuum-tap changer
- Magnetics built for integration with UPS and voltage regulation system
- Ultra low-profile mining transformers
- Multiple reactance iron-core reactor
- Current limiting air core reactors
Surge Arresters
- Easy to install
- Distribution Class
- Available in 3, 6, 9, 12 and 15 kV ratings. Other voltage ratings available by request
- Gapless zinc oxide core provides excellent non-linear voltage characteristic
- Higher current carrying capability at overvoltage than conventional silicon carbide arrestors
- Technical performance conforms to IEC 60099-4 and IEEE 62.11
- Same day pick up or shipping available (Greater Toronto Area)
Part Number | Rating (kV) | MCOV (kV) |
RLA-YH5W-3/9 | 3 | 2.55 |
RLA-YH5W-6/18 | 6 | 5.10 |
RLA-YH5W-9/27 | 9 | 7.65 |
RLA-YH5W-12/36 | 12 | 10.20 |
RLA-YH5W-15/45 | 15 | 12.70 |
Custom Enclosures
Rex Power Magnetics manufactures custom enclosures for OEMs. Whether it is a simple control box or a custom control panel with detailed cut-outs, accessories and paint color/finish, Rex can design, build and paint it in house.
Electrical Insulators
- Easy to install
- Available in 600V, 5kV, 15kV, and 24kV ratings. Other voltage ratings available
- Durable brass insert material
- Custom materials, configurations, and sizes available upon request
- Same day pick up or shipping available (Greater Toronto Area)
Low Voltage Insulators
Part Number | Voltage Class | BIL | Hieght | Diameter | Hole Thread Center | Off Center | Insert Material |
RSM25 | 600V | 10 kV | 25mm (1") | 30mm (1 1/8") | 1/4"-20 | n/a | Brass |
RSM40 | 600V | 10 kV |
40 (1 1/2") |
40mm (1 1/2") | 3/8"-16 | n/a | Brass |
RSM51 | 600V | 10 kV | 51 mm (2") | 40mm (1 1/2") | 3/8"-16 | n/a | Brass |
RSM76 | 600V | 30 kV | 76 mm (3") | 50mm (2") | 3/8"-16 | n/a | Brass |
Medium Voltage Insulators
Part Number | Voltage Class | BIL | Hieght | Diameter | Hole Thread Center | Off Center | Insert Material |
RV6090 | 5 kV | 45 kV | 90mm (3 1/2") | 60mm (2 3/8") | 5/16"-18 | 1/4"-20 | Brass |
RV60155 | 15 kV | 75 kV |
155mm (6 1/8") |
60mm (2 3/8") | 3/8"-16 | 3/8"-16 | Brass |
RV70210 | 24 kV | 110 kV | 210 mm (8 1/4") | 70mm (2 3/4") | 3/8"-16 | 3/8"-16 | Brass |
Transformer Testing & Repair
Rex Power Magnetics is equipped with a complete line of transformer testing equipment to do all routine, and type test on dry type and oil filled transformers up to 46kV. Furthermore, Rex Power magnetics can also repair damaged transformers, by repairing or replacing damaged primary or secondary windings. New coils can be designed to match the original, or we can replace all three coils with new coils designed and manufactured to Rex's internal engineering and design guidelines.
Encapsulated Transformer Enclosures-OLD
NEMA 3R Enclosures For Encapsulated Transformers (3 phase)
Dimensions And Weights
Enclosure Size |
Width (in) |
Depth (in) |
Height (in) |
Weight (lbs) |
Type | Mounting |
E3R-3PEP-1 | 11.00 | 10.00 | 15.25 | 23 | NEMA-3R | Floor / Wall |
E3R-3PEP-2 | 15.00 | 11.00 | 15.25 | 33 | NEMA-3R | Floor / Wall |
E3R-3PEP-3 | 18.00 | 12.50 | 17.00 | 41 | NEMA-3R | Floor / Wall |
E3R-3PEP-4 | 21.00 | 14.00 | 17.50 | 49 | NEMA-3R | Floor / Wall |
E3R-3PEP-5 | 21.00 | 18.00 | 20.00 | 68 | NEMA-3R | Floor / Wall |
E3R-3PEP-6 | 26.00 | 18.00 | 25.00 | 85 | NEMA-3R | Floor |
E3R-3PEP-7 | 32.00 | 18.00 | 30.00 | 114 | NEMA-3R | Floor |
E3R-3PEP-8 | 36.00 | 25.00 | 32.00 | 154 | NEMA-3R | Floor |
E3R-3PEP-9 | 36.00 | 25.00 | 36.00 | 167 | NEMA-3R | Floor |
NEMA 3R Enclosures For Encapsulated Transformers (1 phase)
Dimensions And Weights
Enclosure Size |
Width (in) |
Depth (in) |
Height (in) |
Weight (lbs) |
Type | Mounting |
E3R-1PEP-1 | 5.25 | 4.50 | 11.00 | 4 | NEMA-3R | Wall |
E3R-1PEP-2 | 6.00 | 5.25 | 12.00 | 5 | NEMA-3R | Wall |
E3R-1PEP-3 | 7.50 | 6.50 | 13.50 | 8 | NEMA-3R | Wall |
E3R-1PEP-4 | 12.50 | 12.50 | 15.00 | 33 | NEMA-3R | Floor / Wall |
E3R-1PEP-5 | 15.00 | 15.00 | 18.00 | 43 | NEMA-3R | Floor / Wall |
E3R-1PEP-6 | 18.00 | 14.00 | 25.00 | 57 | NEMA-3R | Floor / Wall |
E3R-1PEP-7 | 19.00 | 16.00 | 28.00 | 68 | NEMA-3R | Floor |
E3R-1PEP-8 | 25.00 | 20.00 | 33.00 | 100 | NEMA-3R | Floor |
E3R-1PEP-9 | 25.00 | 22.00 | 36.00 | 110 | NEMA-3R | Floor |
NEMA 4 Enclosures For Encapsulated Transformers (3 phase)
Dimensions And Weights
Enclosure Size |
Width (in) |
Depth (in) |
Height (in) |
Weight (lbs) |
Type | Mounting |
E4-3PEP-1 | 11.00 | 12.00 | 15.25 | 29 | NEMA-4 | Floor |
E4-3PEP-2 | 15.00 | 13.00 | 15.25 | 37 | NEMA-4 | Floor |
E4-3PEP-3 | 18.00 | 14.50 | 17.00 | 48 | NEMA-4 | Floor |
E4-3PEP-4 | 21.00 | 16.00 | 17.50 | 62 | NEMA-4 | Floor |
E4-3PEP-5 | 21.00 | 20.00 | 20.00 | 73 | NEMA-4 | Floor |
E4-3PEP-6 | 26.00 | 20.00 | 25.00 | 95 | NEMA-4 | Floor |
E4-3PEP-7 | 32.00 | 20.00 | 30.00 | 128 | NEMA-4 | Floor |
E4-3PEP-8 | 36.00 | 27.00 | 32.00 | 164 | NEMA-4 | Floor |
E4-3PEP-9 | 36.00 | 27.00 | 36.00 | 172 | NEMA-4 | Floor |
NEMA 4 Enclosures For Encapsulated Transformers (1 phase)
Dimensions And Weights
Enclosure Size |
Width (in) |
Depth (in) |
Height (in) |
Weight (lbs) |
Type | Mounting |
E4-1PEP-1 | 7.75 | 7.00 | 11.50 | 7 | NEMA-4 | Floor |
E4-1PEP-2 | 8.50 | 7.50 | 12.50 | 8 | NEMA-4 | Floor |
E4-1PEP-3 | 10.00 | 9.00 | 14.00 | 11 | NEMA-4 | Floor |
E4-1PEP-4 | 12.50 | 14.50 | 15.00 | 35 | NEMA-4 | Floor |
E4-1PEP-5 | 15.00 | 17.00 | 18.00 | 47 | NEMA-4 | Floor |
E4-1PEP-6 | 18.00 | 16.00 | 25.00 | 68 | NEMA-4 | Floor |
E4-1PEP-7 | 19.00 | 18.00 | 28.00 | 79 | NEMA-4 | Floor |
E4-1PEP-8 | 25.00 | 22.00 | 33.00 | 114 | NEMA-4 | Floor |
E4-1PEP-9 | 25.00 | 24.00 | 36.00 | 125 | NEMA-4 | Floor |
Power Transformer Enclosures
Standard NEMA 1 Ventilated Enclosures
Enclosure Size |
Width (in) |
Depth (in) |
Height (in) |
Weight (lbs) |
Mounting |
E1-13 | 80.0 | 48.0 | 91.5 | 1300 | Floor |
E1-14 | 90.0 | 60.0 | 91.5 | 1600 | Floor |
E1-15 | 90.0 | 60.0 | 100.0 | 1680 | Floor |
E1-16 | 100.0 | 60.0 | 91.5 | 1729 | Floor |
E1-17 | 100.0 | 60.0 | 110.0 | 1910 | Floor |
E1-18 | 110.0 | 60.0 | 110.0 | 2040 | Floor |
E1-19 | 110.0 | 60.0 | 120.0 | 2150 | Floor |
E1-20 | 110.0 | 72.0 | 110.0 | 2250 | Floor |
E1-21 | 120.0 | 72.0 | 120.0 | 2510 | Floor |
E1-22 | 130.0 | 72.0 | 130.0 | 2800 | Floor |
E1-23 | 140.0 | 72.0 | 140.0 | 3100 | Floor |
Standard NEMA 3R Ventilated Enclosures
Enclosure Size |
Width (in) |
Depth (in) |
Height (in) |
Weight (lbs) |
Mounting |
E3R-13-W | 80.0 | 48.0 | 91.5 | 1495 | Floor |
E3R-14-W | 90.0 | 60.0 | 91.5 | 1840 | Floor |
E3R-15-W | 90.0 | 60.0 | 100.0 | 1932 | Floor |
E3R-16-W | 100.0 | 60.0 | 91.5 | 1978 | Floor |
E3R-17-W | 100.0 | 60.0 | 110.0 | 2197 | Floor |
E3R-18-W | 110.0 | 60.0 | 110.0 | 2346 | Floor |
E3R-19-W | 110.0 | 60.0 | 120.0 | 2473 | Floor |
E3R-20-W | 110.0 | 72.0 | 110.0 | 2588 | Floor |
E3R-21-W | 120.0 | 72.0 | 120.0 | 2887 | Floor |
E3R-22-W | 130.0 | 72.0 | 130.0 | 3220 | Floor |
E3R-23-W | 140.0 | 72.0 | 140.0 | 3565 | Floor |
Company Profile
Rex Power Magnetics, a division of Transfactor Industries, is a privately held Canadian company established in 1972 and headquartered in Concord, Ontario Canada (greater Toronto area). Starting from humble beginnings, REX quickly emerged as a competitive, technically skilled and innovative transformer manufacturer with an expanding product line and a growing list of customers from across Canada, the USA and overseas.
Today, with over 300 employees, Rex is a leading manufacturer of CSA certified, UL listed and ISO 9001 accredited, custom dry type transformers, with a track record of sustained profitable growth driven by technology, innovation, responsiveness and customer service.
With a centralized integrated engineering, manufacturing and customer service facility located in Concord, Ontario, and warehouses throughout Canada and the United States, Rex offers one of the broadest ranges of dry type power magnetic products to both North American, and international markets.
The Rex Product line includes custom designed and built specialty transformers, power transformers up to 15 MVA and 46.0 kV, distribution transformers, reactors, autotransformers, control and machine tool transformers from 50VA, along with custom enclosures, custom cut electrical steel cores and other power magnetic products.
Our Mission is best expressed by our pursuit of:
- Quality Products
- Excellence in customer Service
- Fair, gratifying and rewarding experience for our employees.
It is our firm belief that consistent profitable growth is only achieved through continuous improvement in pursuit of our mission. Our Mission also reveals our commitment to be the leading designer and manufacturer of specialty and custom transformers that meet our customer’s application-specific performance requirements.
Technology Leadership & Technical Innovation
Supported by considerable and sustained investment in research and development for new products, automated equipment and efficient processes, Rex Power Magnetics continually expands and enhances its product and service offering.
Our commitment to continued research and development is underscored by retention of the services of Mr. Shankar Narayan, a prominent Engineering consultant and widely regarded as the foremost leading expert in transformer technology and design.
We are rightfully proud of our industry leading R&D effort, our technology leadership and our track record for technical innovation. We are also proud of our engineering expertise, enhanced by continuous disciplined training, and our bias for technical competence and manufacturing know-how.
Responsiveness and Customer Service
Rex prides itself in its delivery responsiveness and superior customer service which separates us from our competition. Our commitment to leading delivery responsiveness is supported by our
- In-house skilled engineering staff, design experience and technical competence. Your custom requirements and performance specification are converted into product designs without delay.
- Vertically integrated manufacturing capabilities that are unparalleled and unmatched by our North American competitors. In-house enclosure fabrication and powder coat paint, insulation wrapping of conductors, full complement of semi-automated coil winding equipment, step lap miter and distributed gap core cutting, resin impregnation, vacuum and pressure epoxy encapsulation, Cast Coil manufacturing and custom final assembly processes along with inventory of materials and parts and our skilled production staff are combined to turn your custom product designs to a quality produced transformer in minimum time.
- Fully equipped evaluation and test capabilities to perform all standard production tests. Conduct requested specialty “Type” tests and provide test reports, arrange for requested witness testing or secure approval by various special approval bodies.
Our commitment to excellence in customer service is supported by the continuous improvement of our operating information systems to enhance the speed and accuracy of technical information supplied, the competitiveness of our quotations, acceptance and follow up of customer orders and the availability of accessible and reliable service information to our customers. However, our customer service excellence is primarily driven by our commitment to disciplined ongoing training and the collective passion for customer service of our empowered, experienced and cooperative staff.
Our Complete Product Range:
• Control & Machine Tool Transformers
• Low Voltage Distribution Transformers
• Low & Medium Voltage Power Transformers
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• Reactors
• Custom Enclosures
• Electrical Components
• Transformer Testing, Refurbishment, and Repair
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Downloads
Catalog - Rex Power Magnetics - Dist. Trans. - LR (PDF - 2.91MB)
Catalog - Rex Power Magnetics - Green Star - LR (PDF - 940KB)
Catalog - Rex Power Magnetics - Reactor - LR (PDF - 1.95MB)
Rex Power Magnetics - Manual - dist trans (PDF - 113KB)
Rex Power Magnetics - Manual - encapsulated (PDF - 154KB)
Rex Power Magnetics - Manual - totally enclosed (PDF - 122KB)
REX Credit Application (PDF - 81KB)
Rex catalog numbering system (PDF - 476KB)
Rex Standard Configuration – Diagram (PDF - 2.3MB)
Contact Us
Rex Power MagneticsHeadquarters & Main Production Facility
65 Basaltic Rd.
Concord, On L4K 1G4
Canada
Standard Products Production Facilty
27 Leading Rd.
Etobicoke, ON M9V 4B7
Canada
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General ContactToll-Free: 1-800-387-2840
Phone: 905-695-8844
Fax: 905-695-8855
Office Hours: 8:30am - 4:30pm ET (Mon-Fri)
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Canadian / International Sales & InquiriesPhone: 905-695-8844 ext.2351
Toll Free: 1-800-387-2840 ext.2351
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USA Sales & InquiriesPhone: 508-384-2005
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Product Support
Engineering (Technical Support)
Toll Free: 1-800-387-2840 ext.2353
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Power Transformer Group
Toll Free: 1-800-387-2840 ext.2270
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Customer Service / Order Tracking
Order Tracking
Toll Free: 1-800-387-2840 ext.2352
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Quality Control (Returns)
Toll Free: 1-800-387-2840 ext.2283
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Accounting
Accounts Receivable
Toll Free: 1-800-387-2840 ext.2229
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Accounts Payable
Toll Free: 1-800-387-2840 ext.2230
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Purchasing
Toll Free: 1-800-387-2840 ext.2235
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