Current transformers, split core

Current transformers
Current transformers
Current transformers
Current transformers
Current transformers
Current transformers

STQ-24 250/5A

STQ-24 250/5A, Split core current transformer

Code: M73719.

  • System: Single-phase
  • Class 1 Power (VA): 1
  • Measurement Range (A): 250/5
  • Input current: 250 A
  • Transformer type: Split core

INFORMATION

Description

Open-core current transformers with compact dimensions for easy installation. This type of transformer is very easy to install and uninstall on compact panels where the reduced space makes it difficult to take current measurements. In addition, their open-core design means that they can take measurements without having to interrupt the electric supply. The primary current measurement range is from 100 A to 300 A using different secondary outputs (.../1A, .../5A or .../250mA) with a maximum admissible cable diameter of 24 mm.

Applications

Quick and easy assembly are a fundamental aspect when taking temporary measurements in an electrical installation. STQ-24 transformers can take energy measurements together with CIRCUTOR's power analyzers or energy meters (CVM-MINI, CVM-NET, CVM-C, CVM-B, EDMk, etc.) without having to interrupt the electric supply. The open-core design of the transformer makes it very easy to install and allows installers to take electrical measurements in less time.

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SPECIFICATIONS

Electrical characteristics
Safety factor (SF)
5
Power
1 VA (class 3)
Insulation voltage between terminals S1-S2
3 kV
Mechanical characteristics
Size (mm) width x height x depth
53 x 70 x 43.2 (mm)
Envelope
PC LexanTM 940-701
Cable gauge at input and output terminals
2 mm2
Weight (kg)
0,2
Environmental characteristics
Thermal Class
Class B (+130 ºC)
Protection class
IP 20
Relative humidity (without condensation)
15 … 85%
Storage temperature
-20 … 75 ºC
Working temperature
-20 … +75 ºC
Specific technical characteristics of current sensors
Inner diameter Ø (mm)
24
Operating voltage
0,72 kV~ máx.
Current measurement circuit
Nominal frequency
50 / 60 Hz
Primary current measurement
250 A
Allowable overload
1,2 In
Dynamic current (Idyn)
2,5 Ith
Thermal short-circuit current (Ith)
60 In
Transformation ratio
… / 5 A
Standards
Electrical safety, Maximum height (m)
1000
Standards
UNE-EN 61869-1, UNE-EN 61869-2
Measurement accuracy
Accuracy
Clase 1/3

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

Technical guide
Diagram connection
Datasheet

ACCESORIES

TAMBIÉN TE PUEDE INTERESAR

Single-phase and three-phase energy meters

CEM

Single-phase and three-phase energy meters

Power analyzer, panel mounted 96 x96

CVM-C10

Power analyzer, panel mounted 96 x96