KGA Enclosures Ltd
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Hammond Manufacturing Transformers | 178-240-289-298MG Range

178-240-289-298MG Series Medical Grade Plug-In Line Isolation Transformers
cULus and CSA Listed
Product Features
  • Intended for non-patient connected indoor applications where protection of sensitive electronics is required:
    • High end audio/studio use
    • Medical electronics
    • High end test/equipment laboratory
  • cULus Listed to UL 60601-1 (1st Edition) and CAN/CSA-C22.2 No. 601-1-M09 (R2005).
  • Each unit provides complete line isolation and noise filtering plus utilizes a Faraday shield to reduce leakage currents below UL60601-1 requirements (under 100 microamps).
  • Reduced noise coupling due to floating AC output.
  • Not intended to be used to supply power to life support appliances.
  • 3 Different VA capacities available - 500VA, 100VA and 1800VA. All rated 50/60 Hz.
  • 4 Different electrical configurations:
    • 120V-120V Straight isolation ("178" Series)
    • 240V-240V Straight isolation ("240" Series)
    • 240-120V Step down isolation ("289" Series)
    • 120-240V Step up isolation ("298" Series)
  • Vented 14 gauge steel housing with white powder paint.
  • Hospital Grade 3-wire grounded Input Plug.
  • 2 or 3 Duplex Hospital Grade Output Receptacles.
  • On-Off Switch/Circuit Breaker combo protected, and built in automatic Thermal Cut Out for added protection.
Product Resources
Hammond Manufacturing Transformers
KGA Enclosures Ltd are full authorised distributors of the Hammond Manufacturing Transformers product range. This entire range is available from KGA Enclosures Ltd at great competitive pricing and with full customisation options on all applicable products.

To purchase any product or for more information on any product, simply call (+44) 01535 636856 or E-Mail:, where we will be happy to assist you. Or view the related product ranges from Hammond Manufacturing, which are all available from KGA Enclosures Ltd. Including the: What makes KGA Enclosures Ltd different from most other larger distributors is that we offer full customisation services on all enclosure and accessories (where applicable). All customisation work is undertaken by the relevant supplier, (some small projects are done utilizing outside contractors) at their own manufacturing facilities. These services include milling or punching of holes and slots into the enclosure or end plates for cables, connectors, switches etc. Printing and silk screening services allow for the addition of text, logos and graphics onto both the enclosure and end plates, to allow the end user to easily identify the product as well as giving the final product a more elegant finish. For more information on customisation services, please contact us.
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178-240-289-298MG Series - Hammond Manufacturing Transformrers at KGA Enclosures Ltd
Product Options
Part No VA Input Voltage Input Current Output Voltage 1+ 10+ 25+ More
Straight Isolation (120 VAC to 120 VAC)
178MG10001000120 VAC8.67 A120 VAC £407.49 £374.89 £366.74 More
178MG18001800120 VAC15.63 A120 VAC £638.42 £587.35 £574.58 More
178MG500500120 VAC4.33 A120 VAC £292.03 £268.67 £262.83 More
Straight Isolation (240 VAC to 240 VAC)
240MG10001000240 VAC4.33 A240 VAC £407.49 £374.89 £366.74 More
240MG18001800240 VAC7.81 A240 VAC £638.42 £587.35 £574.58 More
240MG500500240 VAC2.17 A240 VAC £292.03 £268.67 £262.83 More
Step-Down Isolation (240 VAC to 120 VAC)
289MG10001000240 VAC4.33 A120 VAC £407.49 £374.89 £366.74 More
289MG18001800240 VAC7.81 A120 VAC £638.42 £587.35 £574.58 More
289MG500500240 VAC2.17 A120 VAC £292.03 £268.67 £262.83 More
Step-Up Isolation (120 VAC to 240 VAC)
298MG10001000120 VAC8.67 A240 VAC £407.49 £374.89 £366.74 More
298MG18001800120 VAC15.63 A240 VAC £638.42 £587.35 £574.58 More
298MG500500120 VAC4.33 A240 VAC £292.03 £268.67 £262.83 More
Please visit individual product page for more detailed information
Hammond Manufacturing - Customisation Services
Modified Electronic Enclosures
Almost every enclosure will need some kind of modification to be useful. In house modifications can be tedious, over complicated and a distraction from your main core business. A third party shop can add time and expense. Let us help you to deliver quality products made to your exact specifications.
Hammond Manufacturing Customisation Services
Why choose Hammond Manufacturing to modify your enclosure
  • Hammond Manufacturing offers a wide selection and massive inventory of enclosures ready to be modified.
  • Typically the minimum order quantity is 25 pieces. This can vary depending on product and service required. Please note KGA Enclosures does not add on any charges.
  • Hammond has an experience enclosure modification team and two dedicated modification facilities in North America and the United Kingdom. They are knowledgeable, available and capable.
  • Hammond Manufacturing helps eliminate scrap and design errors with approval drawings to confirm correct interpretation of your deign required. Many orders will also include a fast delivery of sample enclosures for your inspection. These steps ensure that your assembly fits perfectly before heading into the mass production stage.
Popular modification services offered:
  • Holes
  • Cutouts
  • Tapping and countersinking.
  • Pressed-in hardware (Studs, Standoffs)
  • Silk screening
  • UV Printing
  • Special colours
  • Special length extrusions
  • Pre-Installed accessories
  • Available services vary by product
For Product Availability, Price Confirmation and All Ordering Please E-Mail
Contact Us
Call Us - 01535 636856 +44 (0)1535 636856
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VAT No: GB 204612745
Business No: 09341700