Elgar251b
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Elgar 251B

AC Power Source

The 251B is a portable, 250 Watt, wide band, programmable AC source.  It is in excellent physical and electrical condition.

  • Single Phase Output
  • 250 VA
  • 0-32/130/260 V output
  • 5.25” height

The B series provide a wide range of single, two and three phase, precision solid-state AC power sources. Designed to provide variable voltage and frequency for testing linear loads over their full voltage and frequency ranges.

  • Manual or IEEE-488 programmable using Elgar's Plug-in Programmers
  • SL series provides 150% of rated capacity into linear resistive loads, while the B series are rated at 100% of capacity
  • Low Harmonic Distortion - typically better than 0.4%
  • Wide frequency range of 45 to 5000 Hz
  • Overload and temperature protection
  • Low effective output impedance
  • Series and paralleling capabilities

 

INPUT
Voltage: Standard inputs include 115VAC, 208VAC and 230VAC, 1 Ø. Consult us for how to specify.
Frequency: 47-63Hz

OSCILLATORS
SL & B Series sources require either a manual or Plug-in-programmer oscillator. These oscillators determine programmability of output voltage, frequency, phase, etc.

OUTPUT
Voltage Range: Full rated VA from 55-65 VAC, 110-130 VAC, or 220-260 VAC over a ± 10% input variance and rated load PF of 0.7 to unity.
Output Frequency Range: 45 Hz to 5000 Hz at full rated power.
Load Regulation: ± 1% no load to full load over full frequency range; ± 0.015% when equipped with external sensing.
Line Regulation: ± 0.25% at rated load for a ± 10% input variance.
Total Harmonic Distortion:
SL Series: 0.4% 200 Hz to 1000 Hz; 0.6% Full frequency range
B Series: 0.5% 100 Hz to 1000 Hz; 0.9% Full frequency range

GENERAL
Operating Temperature Range: 0 - 55 ° C.
Dimensions: 19"w x 22"d

 

 

Warranty

As our many customers will attest, we will do our very best to resolve any customer problems.  But our official policy is: 

  • All items sold are guaranteed against D.O.A. only. 
  • All claims must be made within 3 days of receipt. 
  • All warranties are void if the calibration / warranty seals are broken.

 

 

Shipping Policy

Buyer will pay $xx.xx packing and shipping in the continental United States.  We will make every effort to ship within 24 hours of receipt of payment.  We ship with FedEx & UPS only.  We will be glad to ship with other carriers using the purchasers shipping account.  Please contact us to make any special shipping arrangements. For shipping rate research, our shipping address is Boulder, CO USA ---- Zip Code is 80305.

Foreign buyers:  Unless special provisions have been made, you are responsible for making your own shipping arrangements and all costs related to customs, duties & special packaging requirements.  Please do not ask us to quote you international shipping rates.  Use the address information above to research you own shipping rates.  You can email waltwhite@ascentconcepts.com to get the packaging fee, package weight and size for your research.  Items sold outside the USA are sold as is.  

 

 

 Payment Policy

We accept Credit Card payment through Paypal.   We accept Cashiers Check or Money Orders.

 

 

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The equipment shown is a representation only.  We often have multiple units in stock so please email us with your needs.  We have a large inventory and can usually find any test and measurement item in a short time frame.------Inquires info@ascentconcept.com