Description
Daytronic 2F4051B Current Transformer 56mm 15mm Bore 65mA/10A 60Hz
Current transformer designed to step down AC currents for measurement and monitoring applications. Toroidal form factor with dual secondary windings for flexible signal conditioning.
Specifications & What's Included
- Model: 2F4051B (Daytronic)
- Type: Current Transformer (CT), toroidal
- Frequency: 60 Hz
- Winding 1: 65 mA / 10A output ratio, 3.75 Ohm resistance, pins 8 and 5
- Winding 2: 2.6 mA / 10A output ratio, 203.4 Ohm resistance, pins 4 and 3
- Physical: 56 mm OD, 32 mm length, 15 mm through-hole bore
- Mounting: 4 UNC 6-32 threaded holes on 23 mm radius
- Leads: Color-coded wire termination
- Made in USA
Applications
Current transformers are used in power monitoring, metering, and protective relay circuits to safely isolate and scale down high currents for instrumentation. Dual-winding designs like this unit provide flexibility for parallel measurement circuits or redundant monitoring. Typical installations include industrial control panels, power distribution systems, and test equipment where current measurement is required without breaking primary circuit connections.
This Daytronic 2F4051B current transformer has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The toroidal housing shows surface darkening and general patina consistent with industrial service, visible in our photos. The through-hole bore and mounting face are intact, and the color-coded wire leads are present and undamaged. Two units are available; they are very similar but not identical — winding resistances and output ratios are close but vary slightly between them. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Daytronic |
Model: |
2F4051B |
MPN: |
2F4051B |
Type: |
Current Transformer (CT) |
SKU: |
35032 |
Condition: |
Used – Pulled from Working Environment |
Winding 1 Output Ratio: |
65 mA / 10A |
Winding 1 Resistance: |
3.75 Ohm |
Winding 1 Terminals: |
Pins 8 and 5 |
Winding 2 Output Ratio: |
2.6 mA / 10A |
Winding 2 Resistance: |
203.4 Ohm |
Winding 2 Terminals: |
Pins 4 and 3 |
Frequency: |
60 Hz |
Outer Diameter: |
56 mm |
Length (Height): |
32 mm |
Through-Hole Diameter: |
15 mm |
Mounting: |
4 mounting holes on 23 mm radius, UNC 6-32 threaded |
Leads / Termination: |
Color-coded wire leads |
Form Factor: |
Toroidal / Donut |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Sold individually. Two units available; specs are very close but not identical. |
Condition Notes: |
Daytronic 2F4051B current transformer, inspected and in good used condition. Pulled from a working environment. Housing shows normal industrial patina. Wire leads intact. Two units available; specs are close but not identical. |
