- Toroidal design.
- Supplied with 24" insulated secondary leads, terminated with crimped ring connectors.
- Suitable for use with bare (uninsulated) primary conductor in circuits up to 600 V (4 KV hipot); or at higher voltages when a suitably insulated conductor is used.
- All units have 5 A secondary for use with standard A.C. ammeters with 5 A movements.
- Two hole mounting bracket on all models.
- UL E227616 volume #1 file number X0DW2.
To obtain current measurement:
- Pass the wire carrying the current to be measured through the window of the CT transformer (acting as a primary winding).
- Connect the CT secondary to an ammeter with a 5 A movement.
For higher accuracy or higher VA burden rating:
- Choose a CT with a primary which is a multiple of the required primary rating and which has the accuracy or VA burden you require.
- Loop the wire carrying the current to be measured through the window a number of times equal to the multiple. This "winding" will reduce the ratio back to required primary rating.
- Example "A": To obtain an accuracy of 1.2% at 10 VA burden with a ratio of 100:5, use a CT400A and loop 4 primary turns through the window.
- Example "B": To obtain a 25:5 ratio, use a CT75A with 3 primary turns to yield 2% accuracy or a CT50A with 2 primary turns to yield 3.2% accuracy.
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.
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.
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.
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.
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: