100A Current Transformer
Split Core

The CurrentTransformer (100A-Split Core) is used for circuits up to 100A. This series of split core current transformers is simple and designed for connection to the JBox products from CircuitMeter. They will meet the most demanding accuracy requirements. Installing these CTs requires a shutdown of the circuit involved.

Use a split-core CT when you are unable to shut down a circuit.

Key Features

  • Split core current transformer for the most demanding accuracy.
  • For circuits up to 100A.
  • Designed for all CircuitMeter products

Mechanical Specifications

Case Material

  • UL 94V-0

Operating Temperature

  • 5º to 80ºC

Storage Temperature

  • -20º to 85ºC

Secondary Wire

  • 2.0M (6.5 ft)
  • 18 AWG
  • UL 1015 (TEW)
  • 600V, 105C

Safety Specifications

Safety Standards

  • UL 61010-1
  • CAN/CSA C22.2 61010-1
  • UL 61010-2-032
  • EN 61010-1
  • IEC 61010-2-032

Measurement Category

  • CAT III, 600VAC


  • Compliant

Three key criteria:

  • high accuracy
  • industry approvals
  • low cost


Size: 76 x 57 mm
3.0 x 2.4 in
Height: 21 mm
0.83 in
Center Hole: 25 mm
0.98 in

Electrical Specifications¹

Maximum Current: 100A
Output: 40mA
Accuracy Class: 0.5
Type: Split Core

¹ For use on insulated conductors only