# 251B Elgar AC Source Used

**Additional Features:**

-   Total VA: 250
-   Voltage Range (RMS) L-N
-   0-32 volts @ 9.2 Amp (RMS)
-   0-130 volts @ 2.25 Amp (RMS)
-   0-260 volts @ 1.1 Amp (RMS)
-   Frequency Range (Hz): 45 to 5k at full rated power
-   Input: 115 or 230 Vac, 47/63 Hz, Single phase.
-   Output Power Volt Ampere Rating
-   Single phase: 120 VA to 18 kVA
-   Dual phase: 24 0 VA to 18 kVA
-   Three phase: 150 VA to 36 kVA

**Applications**

The linear design of the SL and B Series provides a highly regulated, clean sine wave, making these units ideal for linear loads in general purpose test applications as well as for Automatic Test Equipment systems and avionics testing.

-   Power fault simulation when used with an Elgar Plug-In Programmer
-   Frequency conversion (60 to 50 Hz or 50 to 60 Hz) for generating international or USA power
-   Power supply testing
-   Gyro testing
-   Avionics testing (400 Hz)

The Elgar 251B power source is a wide range, solid-state linear amplifier that converts the incoming line to low distortion, stable sine wave power.

These solid-state frequency changers are benchtop 19" rackmount units that can be driven over their full voltage and frequency ranges by fixed, variable or programmable plug-in oscillators.

The Elgar 251B offers overload and overtemperature protection, can operate continuously at up to 150% rated capacity, and provide up to three output voltage ranges.

**Continuous Duty at 100% Rated Capacity**

Due to their conservative design, the 251B provides continuous duty at 100% rated capacity into a linear resistive load.

**Low Harmonic Distortion**

The Elgar 251B power sources provide low harmonic distortion normally below 0.3% midband, 0.6% over the full frequency range.

**Wide Frequency Range**

Elgar AC power sources offer frequencies from 45 Hz to 5 kHz at full rated power. (optionally expandable to 10 kHz).

**Configurable**

The Elgar 251B components can be used as building blocks for creating a full range of single, dual and three-phase AC power sources.

## Details

- **Price:** 0.0 USD
- **Vendor:** Elgar
- **Type:** AC Sources
- **Tags:** AC Source, Elgar, Manufacturers, Power Supplies & Loads, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- 251B Elgar AC Source Used

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> Source: [ValueTronics](https://valuetronics.com/products/251b-elgar-ac-source-used)
> Updated: 2026-05-21