621-Field-Test-Kit

Field Test Kit (621)

The TESCO 621 Field Meter Test Kit is a rugged, lightweight solution for accurate, on-site testing of open-link electric meters. Engineered to reduce field test equipment to its lowest possible weight, the 621 combines a digital reference standard and artificial load in a compact, 25 lb. package—perfect for meter technicians who need mobility without compromising performance.

The kit includes a voltage selector switch (120/240/277/480V) with an OFF position to safely de-energize the load without disconnecting leads. Durable rotary switches allow current selection between full and light load settings, and a toggle switch enables fast power factor changes between 50% and 100%.

Internal connections automatically route the correct standard coil during load changes—streamlining the testing process. This makes the 621 an ideal choice for utilities prioritizing safety, portability, and efficient meter site validation. For closed-link meter testing, see TESCO Catalog No. 630

SKU: 621 Category:
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Description

Key Features

  • Lightweight and portable — only 25 lbs. including leads and reference standard
  • Voltage settings: 120V, 240V, 277V, 480V (custom voltages available)
  • Current ranges:
  • Full Load: 5A, 15A, 50A
  • Light Load: 0.5A, 1.5A, 5A
  • Selectable power factor: 50% or 100%
  • Durable aluminum case with internal storage for cable set
  • Radian digital reference standard included
  • No lead changes required for voltage or current adjustments
  • Ideal for testing meters with an open link
  • Compatible with optional accessories like test plugs, isolators, and field bags

Product Documents

Accessories