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300 Series - High Voltage (Plate) and Filament - 39 VA to 940 VA
Universal Primary and 50/60 Hz. Operation
Product Information
Contact / Purchase Products
Customisation Services
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 from high voltage secondary C.T. (except Part number: 379WX - uses a separate 60VAC 0.2 Amp winding).
  • Hipot 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: 300BK) and 2A3 tubes (Part number: 302AX).
  • Finish: Black powder paint to match the 1650P Series of output transformers.
  • Units can be run full wave bridge of 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 versions - the 300P Series.
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.

Please remember - KGA Enclosures Ltd are authorised distributors of this product range. Please only use authorised distributors to purchase these products. This will then ensure you receive a genuine product.
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Hammond Manufacturing Product Ranges
Did you know you can find the entire Hammond Manufacturing product range here at KGA Enclosures Ltd?

We offer all of these products at great competitive prices and with full customisation options where applicable. If you find a lower price, we will match it and beat it. That is our guarantee. For more information on any range, please click the links below:
300 Series | Hammond Manufacturing Transformers | KGA Enclosures Ltd
Quick Contact Form
Payment Options
Payment options accepted at KGA Enclosures Ltd include:
  • Bank Transfers (BACS).
  • Cheques.
  • Credit/Debit cards.
  • PayPal.
Unfortunately, CASH is not accepted for payment.
Please note - All bank details and payment options are detailed on the invoice.
How To Purchase Products
Please note - KGA Enclosures currently does not accept orders via our website, all orders need to be e-mailed to us, at sales@kgaenclosures.com or use or form opposite/above.

To purchase any product or for more assistance, please contact KGA Enclosures Ltd, by phone (+44) 01535 636856 or E-Mail: sales@kgaenclosures.com.

Please include the following information when placing an order or requesting a quote (where applicable).
  • Confirmation of items and quantities required.
  • Contact name.
  • Company name.
  • Full shipping address, and billing address if different from shipping.
  • Contact telephone number.
  • E-Mail address.
  • VAT/EORI Number (Only for orders outside the UK).
Once we receive any E-Mail, we aim to respond within 24 hours.
Product Customisation Options
What makes KGA Enclosures Ltd different from most other larger distributors is that we can offer full customisation services on all enclosures and accessories. All customisation work is undertaken by the relevant supplier, (some smaller production runs are done by utilizing an outside contractor) at their own manufacturing facilities. These services include milling or punching holes and slots into the enclosure or end plates for cables, connectors, switches, etc. Printing and silk-screening services all 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, and to allow the final product to look more elegant. Contact us today to see how we can assist you.
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 core business. A third party shop can add time and expense. Let us help you by delivering quality products made to your exact specifications.
Why Use Hammond Manufacturing?
  • Hammond offers a wide selection and massive inventory ready to be modified.
  • Typically, the minimum order is 25 units. This can vary depending on the product and services required.
  • Hammond has an experience enclosure modification team and two dedicated modification facilities located in North America and Europe. We are knowledgeable, available, and capable.
  • Hammond helps eliminate scrap and design errors with approval drawings to confirm correct interpretation of your design requirements. Many orders will also include fast delivery of sample enclosures for inspection. These steps ensure that your assembly fits perfectly before heading to the 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.
Customisation Serices | Hammond Manufacturing | KGA Enclosures Ltd
Product Options
Please email all orders and enquiries to sales@kgaenclosures.com
Part No Manufacturer Product Information 1+ 5+ 10+ 25+ More.....
Horizontal Mount ("Z" Mounting)
369KZ Hammond Click Part Number For Details £149.85 £143.86 £137.86 £134.87 More.....
370DAZ Hammond Click Part Number For Details £91.99 £88.31 £84.63 £82.79 More.....
370KZ Hammond Click Part Number For Details £166.34 £159.68 £153.03 £149.70 More.....
373AZ Hammond Click Part Number For Details £101.19 £97.14 £93.09 £91.07 More.....
373CZ Hammond Click Part Number For Details £160.97 £154.53 £148.09 £144.87 More.....
373DZ Hammond Click Part Number For Details £131.09 £125.84 £120.60 £117.98 More.....
Vertical Mount ("X" Mounting)
300BX Hammond Click Part Number For Details £184.55 £177.17 £169.78 £166.09 More.....
302AX Hammond Click Part Number For Details £147.65 £141.74 £135.84 £132.88 More.....
363AX Hammond Click Part Number For Details £73.59 £70.65 £67.70 £66.23 More.....
363CX Hammond Click Part Number For Details £110.73 £106.30 £101.87 £99.66 More.....
369AX Hammond Click Part Number For Details £73.82 £70.87 £67.91 £66.44 More.....
369BX Hammond Click Part Number For Details £73.82 £70.87 £67.91 £66.44 More.....
369EX Hammond Click Part Number For Details £70.13 £67.33 £64.52 £63.12 More.....
369GX Hammond Click Part Number For Details £73.82 £70.87 £67.91 £66.44 More.....
369HX Hammond Click Part Number For Details £121.39 £116.54 £111.68 £109.26 More.....
369JX Hammond Click Part Number For Details £75.64 £72.61 £69.59 £68.07 More.....
369KX Hammond Click Part Number For Details £133.20 £127.87 £122.55 £119.88 More.....
370AX Hammond Click Part Number For Details £79.35 £76.18 £73.01 £71.42 More.....
370BX Hammond Click Part Number For Details £83.04 £79.72 £76.40 £74.74 More.....
370CAX Hammond Click Part Number For Details £93.14 £89.42 £85.69 £83.83 More.....
370CX Hammond Click Part Number For Details £89.68 £86.09 £82.50 £80.71 More.....
370DAX Hammond Click Part Number For Details £89.68 £86.09 £82.50 £80.71 More.....
370DX Hammond Click Part Number For Details £93.14 £89.42 £85.69 £83.83 More.....
370EX Hammond Click Part Number For Details £102.35 £98.26 £94.16 £92.12 More.....
370FX Hammond Click Part Number For Details £110.73 £106.30 £101.87 £99.66 More.....
370HX Hammond Click Part Number For Details £140.25 £134.64 £129.03 £126.22 More.....
370JX Hammond Click Part Number For Details £137.32 £131.83 £126.33 £123.59 More.....
370KX Hammond Click Part Number For Details £142.60 £136.89 £131.19 £128.34 More.....
370LX Hammond Click Part Number For Details £186.69 £179.22 £171.75 £168.02 More.....
370MX Hammond Click Part Number For Details £189.73 £182.14 £174.55 £170.76 More.....
370X Hammond Click Part Number For Details £81.63 £78.36 £75.10 £73.46 More.....
371X Hammond Click Part Number For Details £85.07 £81.67 £78.26 £76.56 More.....
372BX Hammond Click Part Number For Details £97.78 £93.87 £89.96 £88.01 More.....
372DX Hammond Click Part Number For Details £108.07 £103.75 £99.43 £97.27 More.....
372FX Hammond Click Part Number For Details £125.47 £120.45 £115.44 £112.93 More.....
372HX Hammond Click Part Number For Details £142.57 £136.87 £131.16 £128.31 More.....
372JX Hammond Click Part Number For Details £151.32 £145.27 £139.22 £136.19 More.....
372KX Hammond Click Part Number For Details £207.02 £198.74 £190.46 £186.32 More.....
372LX Hammond Click Part Number For Details £230.14 £220.93 £211.73 £207.12 More.....
372X Hammond Click Part Number For Details £96.58 £92.71 £88.85 £86.92 More.....
373BX Hammond Click Part Number For Details £129.18 £124.01 £118.84 £116.26 More.....
373DX Hammond Click Part Number For Details £128.78 £123.63 £118.48 £115.90 More.....
373EX Hammond Click Part Number For Details £194.21 £186.44 £178.67 £174.79 More.....
373FX Hammond Click Part Number For Details £201.93 £193.86 £185.78 £181.74 More.....
373HX Hammond Click Part Number For Details £216.87 £208.19 £199.52 £195.18 More.....
373JX Hammond Click Part Number For Details £391.34 £375.69 £360.04 £352.21 More.....
373X Hammond Click Part Number For Details £120.84 £116.01 £111.17 £108.76 More.....
374AX Hammond Click Part Number For Details £119.58 £114.80 £110.02 £107.63 More.....
374BX Hammond Click Part Number For Details £138.41 £132.88 £127.34 £124.57 More.....
374X Hammond Click Part Number For Details £110.40 £105.98 £101.56 £99.36 More.....
375X Hammond Click Part Number For Details £197.76 £189.85 £181.94 £177.98 More.....
376X Hammond Click Part Number For Details £151.76 £145.69 £139.62 £136.58 More.....
378CX Hammond Click Part Number For Details £188.25 £180.72 £173.19 £169.43 More.....
378X Hammond Click Part Number For Details £175.33 £168.32 £161.31 £157.80 More.....
379WX Hammond Click Part Number For Details £420.89 £404.06 £387.22 £378.80 More.....
379X Hammond Click Part Number For Details £160.97 £154.53 £148.09 £144.87 More.....
382X Hammond Click Part Number For Details £193.16 £185.43 £177.71 £173.84 More.....
384X Hammond Click Part Number For Details £206.69 £198.43 £190.16 £186.02 More.....
Please contact us for stock and price confirmation

300 Series | Power - Classic High Voltage Tube Plate | Hammond Manufacturing Transformers | KGA Enclosures Ltd