KGA Enclosures Ltd
Contacting KGA Enclosures
Tel: +44 (0)1535 636856
E-Mail: sales@kgaenclosures.com
Products to be ordered via E-Mail (No Online Shop)
Bank Transfer / Credit/Debit Cards / PayPal Payments all accepted
Please send all orders and enquiries to sales@kgaenclosures.com, we will respond with pricing confirmation and stock availability
300 Series High Voltage (Plate) and Filament - 39 VA to 940 VA
Universal Primary and 50/60 Hz. Operation
Product Features
  • Primary: Universal - 100, 110, 120, 200, 220, 230, 240 VAC 50/60 Hz.
    • Note: Units are designed to operate with BOTH primary windings engaged
  • Bias Tap: 50 VAC tap from high voltage secondary C.T. (except part number 379WX - uses a separate 60VAC 0.2 Amp winding).
  • Hi-Pot tested: 2,000 VAC.
  • Faraday Copper Primary Shield: The electrostatic shield reduces the capacitive coupling from the primary - greatly attenuating higher frequency current coupling to the secondaries (shield is internally grounded to the end bell).
  • Windings: Concentric wound for low stray field and low noise.
  • Models: This series is an upgrade from the entire 200 Series range of units PLUS 2 models designed specifically for 300B tubes (Part number 300BX) and 2A3 tubes (Part number 302AX).
  • Finish: Black powder paint to match the 1650 Series of output transformers Units can be run full wave bridge or full wave C.T.
  • Conservative designs - CSA certified (209651).
Related Products
  • For a more economical, open frame, universal primary - Check out the 260 Series.
  • For that "high end" look and feel check out the potted version - The 300P Series.
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: sales@kgaenclosures.com, 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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300 Series - Hammond Manufacturing Transformrers at KGA Enclosures Ltd
Product Options
Part No VA A.C. High Voltage Secondary R.M.S. Bias Tap on High Voltage Secondary with C.T. Grounded (VAC) Filament #1 (VAC) 1+ 10+ 25+ More
300BX280800V C.T. @ 288ma.505V C.T. @ 1.2A £134.22 £123.48 £120.80 More
302AX198600V C.T. @ 230ma.502.5V C.T. @ 2.5A £104.92 £96.53 £94.43 More
363AX32200V C.T. @ 115ma.505V C.T. @ 2A £59.73 £54.95 £53.76 More
363CX119360V C.T. @ 288ma.505V C.T. @ 3A £72.00 £66.24 £64.80 More
369AX40250V C.T. @ 115ma.506.3V C.T. @ 2A £56.12 £51.63 £50.50 More
369BX39300V C.T. @ 86ma.506.3V C.T. @ 2A £56.13 £51.64 £50.52 More
369EX45380V C.T. @ 75ma.506.3V C.T. @ 2.5A £54.23 £49.89 £48.80 More
369GX50450V C.T. @ 75ma.506.3V C.T. @ 2.5A £56.12 £51.63 £50.50 More
369HX120450V C.T. @ 150ma.505V C.T. @ 3A £91.36 £84.05 £82.23 More
369JX50500V C.T. @ 69ma.506.3V C.T. @ 2.5A £57.51 £52.91 £51.76 More
369KX188450V C.T. @ 300ma.505V C.T. @ 3A £100.26 £92.24 £90.23 More
370AX44480V C.T. @ 58ma.506.3V C.T. @ 2.5A £59.79 £55.00 £53.81 More
370BX55550V C.T. @ 58ma.505V C.T. @ 2A £64.40 £59.24 £57.96 More
370CAX66500V C.T. @ 81ma.505V C.T. @ 2A £74.55 £68.58 £67.09 More
370CX59550V C.T. @ 75ma.506.3V C.T. @ 0.6A £72.81 £66.99 £65.53 More
370DAX76520V C.T. @ 104ma.506.3V C.T. @ 3.5A £72.81 £66.99 £65.53 More
370DX86550V C.T. @ 104ma.505V C.T. @ 2A £74.55 £68.58 £67.09 More
370EX119550V C.T. @ 144ma.505V C.T. @ 3A £83.05 £76.41 £74.75 More
370FX141550V C.T. @ 173ma.505V C.T. @ 3A £78.09 £71.85 £70.28 More
370HX180550V C.T. @ 230ma.505V C.T. @ 3A £79.32 £72.98 £71.39 More
370JX133500V C.T. @ 161ma.505V C.T. @ 3A £103.43 £95.15 £93.09 More
370KX229500V C.T. @ 322ma.505V C.T. @ 6A £107.35 £98.76 £96.62 More
370LX340550V C.T. @ 460ma.505V C.T. @ 6A £140.55 £129.30 £126.49 More
370MX403550V C.T. @ 575ma.505V C.T. @ 6A £142.80 £131.37 £128.52 More
370X41480V C.T. @ 46ma.505V C.T. @ 2A £65.54 £60.29 £58.98 More
371X63560V C.T. @ 69ma.505V C.T. @ 2A £69.06 £63.54 £62.16 More
372BX98600V C.T. @ 115ma.505V C.T. @ 2A £72.00 £66.24 £64.80 More
372DX127600V C.T. @ 144ma.505V C.T. @ 3A £85.85 £78.98 £77.26 More
372FX150600V C.T. @ 173ma.505V C.T. @ 3A £80.54 £74.09 £72.48 More
372HX191600V C.T. @ 230ma.505V C.T. @ 3A £115.23 £106.01 £103.71 More
372JX243600V C.T. @ 288ma.505V C.T. @ 4A £109.80 £101.02 £98.82 More
372KX432600V C.T. @ 575ma505V C.T. @ 6A £155.84 £143.37 £140.26 More
372LX520600V C.T. @ 690ma505V C.T. @ 6A £173.25 £159.39 £155.93 More
372X75620V C.T. @ 81ma.505V C.T. @ 2A £76.81 £70.67 £69.13 More
373BX187700V C.T. @ 201ma.505V C.T. @ 3A £87.84 £80.81 £79.06 More
373DX101700V C.T. @ 104ma.505V C.T. @ 2A £90.27 £83.05 £81.24 More
373EX311650V C.T. @ 345ma.505V C.T. @ 6A £146.19 £134.50 £131.57 More
373FX386650V C.T. @ 460ma.505V C.T. @ 6A £149.27 £137.32 £134.34 More
373HX369700V C.T. @ 403ma.505V C.T. @ 6A £163.26 £150.20 £146.93 More
373JX710700V C.T. @ 863ma.505V C.T. @ 6A £294.62 £271.05 £265.15 More
373X125700V C.T. @ 127ma.505V C.T. @ 2A £78.09 £71.85 £70.28 More
374AX136720V C.T. @ 138ma.505V C.T. @ 3A £90.89 £83.62 £81.80 More
374BX200750V C.T. @ 201ma.505V C.T. @ 3A £90.27 £83.05 £81.24 More
374X141750V C.T. @ 127ma.505V C.T. @ 3A £89.58 £82.41 £80.62 More
375X171800V C.T. @ 155ma.505V C.T. @ 3A £100.76 £92.70 £90.68 More
376X157640V C.T. @ 173ma.505V C.T. @ 3A £98.39 £90.52 £88.55 More
378CX465800V C.T. @ 534ma.506.3V C.T. @ 6A £146.86 £135.11 £132.18 More
378X237800V C.T. @ 230ma.505V C.T. @ 3A £109.80 £101.02 £98.82 More
379WX940800V C.T. @ 1.06 A or 850V C.T. @ 1A60*6.3V C.T. @12A £319.91 £294.31 £287.91 More
379X193850V C.T. @ 173ma.505V C.T. @ 3A £107.37 £98.78 £96.63 More
382X2831,000V C.T. @ 230ma.505V C.T. @ 3A £119.55 £109.98 £107.59 More
384X3291,200V C.T. @ 230mA505V @ 3A £199.04 £183.11 £179.13 More
Horizontal Mount ("Z" Mounting)
369KZ188450V C.T. @ 300 ma.505V C.T. @ 3A £135.84 £124.97 £122.26 More
370DAZ76520V C.T. @ 104ma.506.3V C.T. @ 3.5A £72.30 £66.52 £65.07 More
370KZ218500V C.T. @ 300 ma.505V C.T. @ 6A £150.78 £138.72 £135.70 More
373AZ49650V C.T. @ 46ma.505V C.T. @ 2A £75.65 £69.60 £68.08 More
373CZ159650V C.T. @ 173ma.505V C.T. @ 3A £100.04 £92.03 £90.03 More
373DZ101700V C.T. @ 104ma.505V C.T. @ 2A £90.27 £83.05 £81.24 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 sales@kgaenclosures.com
Contact Us
Call Us - 01535 636856 +44 (0)1535 636856
E-Mail Us - sales@kgaenclosures.com sales@kgaenclosures.com
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VAT No: GB 204612745
Business No: 09341700