Window-type current transformer for Cable from 40 to 125A

CTMD20
Window-type current transformer for Cable from 40 to 125A

Window-type current transformers designed for measuring current in single-phase cables up to 20 mm in diameter. The range covers a wide range of primary currents, from 40A to 125A AC. They are available in accuracy classes 0.5, 1.0, or 3.0.

Inner diameter (mm): 20
Conductor type: Single-phase
Magnetic core type: Closed
Primary current: 40 A to 125A
Secondary current: 5A (1A on request)
Class 3, 1, or 0.5 depending on the rating
Power (VA): 1 to 2.5 VA

Technical Sheet

Request for Quote

Description

Technical Specifications

CT Ratio

From 40A to 125A

Nominal Power

Up to 2,5VA

Accuracy Class

Class 3.0; 1.0 or Class 0.5

Terminal

Full terminal coverage, high cross-section brass terminal for added safety.

Box

Flame-retardant ABS/PC. Self-extinguishing.

Mounting

On cable

Operating ambient temperature

-25 C° – +85 C°

Primary conductor

20 mm

Round conductor

Diameter 20 mm

Number of inputs

1 input

Short-time thermal current

Ith = 60 “In

Continuous thermal current

Id=12*In

Nominal frequency

50Hz … 60Hz

Overvoltage current limiting factor

FS 5

Test voltage

3kV 1min

Maximum system voltage

0.72kV

Applicable Standards

IEC 60044-1
IEC 61869-2
VDE 0414-1
DIN57414
BS3938
BS7626
EN 61869-2

Diagrams and Dimensions