Clearwater Tech Logo
Loading
Home | Contact Us |
(800) 894-0412

Product Articles

Home   >   Products   >   Articles   >   Line Transformers

Steps to Proper Transformer Selection

  • What power is available (you need to know both voltage & frequency)?
  • Check the operating voltage of your equipment (is it single voltage or multiple?).
  • What line frequency will your equipment run on? Either 50, 60 or dual 50/60 Hz. (remember, a transformer can NOT change line frequency).
  • Use the chart below to determine your requirements:

  • Power Available Your Equipment Transformer Type Required
    Voltage Frequency Voltage Frequency (You may also need plug adaptors)
    115 60 100 50/60 Step Down
    115 50 115 50 None Required - or - Straight Isolation
    115 50 115 60 Will Not Work
    115 50 115/230 50/60 None Required - or - Straight Isolation
    115 60 115 60 None Required - or - Straight Isolation
    115 60 230 50 Will Not Work
    115 60 230 60 Step Up
    115 60 115/230 50/60 None Required - or - Straight Isolation
    230 50 115 50 Step Down
    230 50 115 60 Will Not Work
    230 50 115/230 50/60 None Required - or - Straight Isolation
    230 60 115 60 Step Down
    230 60 230 50 Will Not Work
    230 60 230 60 None Required - or - Straight Isolation
    230 60 115/230 50/60 None Required - or - Straight Isolation

  • Determine if your equipment is Electronic or Electrical:
    • Electronic = containing IC chips, transistors or a circuit such as a radio, shavers, electric toothbrush, computer printers, camcorder battery rechargers etc. (if in doubt, check with the manufacturer or refer to your manual).
    • Electrical = Simple heating device, such as irons, hair dryers, electric blankets, curling irons, etc.
  • Use the chart below to locate correct series & voltage conversion in the catalog series that follow:
Transformer Type Your Equipment Type
(determined from chart above) Electronic Electrical
Step Up Use Isolation (series 298) Could use "Auto" (series 170 or 170E)
Step Down Use Isolation (series 172, 179 or 289) Could use "Auto" (series 175)
Straight Isolation Use Isolation (series 169 or 171) -

Important Notes

  • Isolation Transformers: Used for maximum safety, versatility (can be used on both electrical & electronic equipment) and isolation from the power source, used to step-up, step-down or for straight isolation. The disadvantage to using them is weight (about double the "Auto"), more expensive and larger size. This type of transformer is sometimes referred to as "double-wound"
  • "Auto" Transformers: are non-isolating units and should be used where only a voltage change is required. The advantages to using them are light weight (generally half that of an isolation unit), less expensive and smaller size. The disadvantage is no isolation from the power source. This type of transformer is sometimes referred to as a "converter".
  • Adaptors: We strongly recommend that 3-prong "grounded" plugs be used with all of our products. They should be used only with Hammond Power Solutions' "grounded" adaptors. Adaptors do not affect voltages, they are a mechanical device only to match foreign "pin-outs" of receptacles and/or plugs.
Stock Check
Part No:
OR
Manufacturer:

Search Tips

Can't find a part number?
E-mail Us!

Leuze Sensors

The Retro-Reflective photoelectric sensors with metal thread can reliably detect objects even with glossy surfaces through the use of polarized light. Reliable blanking of direct reflections by the polarization filter, an optimized beam path for quick commissioning and simple fine adjustment characterize these sensors in the sturdy plastic housings with metal thread.

SymCom Overloads

The Settable Trip Class range is 2-60, with or without jam protection, and a secondary linear trip delay can be set with a range of 0-60 seconds. If both trip class and linear trip delay are set, the 777-MLR-KW/HP-P2 will follow the faster trip time. Another feature is the automatic dry-well recovery timer that allows the unit to automatically select a restart delay based on the last cycle's run time. This allows the 777-MLR-KW-HP-P2