Clamp on CT | Split-Core Current Transformer 1-200A

Product Overview

Clamp on CT (Clamp-on Current Transformer) is an innovative split-core current measurement device designed for measuring 1-200 ampere AC currents. Featuring plug-and-play design, it easily clamps around conductors without power disconnection, providing standard 0.333V voltage output proportional to primary current RMS value.

Core Advantages

Split-core design for convenient installation
Wide measurement range: 1-200A AC
High accuracy measurement with minimal error
UL certified, complying with global safety standards
High isolation between primary and secondary circuits

Product Features

Technical Features

Feature Item	Technical Parameters	Advantage Description
Measurement Range	1-200A AC	Covers small to large equipment monitoring needs
Output Signal	0.333V voltage output	Stable and reliable, easy signal processing
Accuracy Grade	High accuracy, low error	Provides accurate and reliable measurement results
Frequency Response	50/60Hz compatible	Suitable for global power system standards
Operating Temperature	Wide temperature range	Adapts to various environmental conditions
Installation Method	Split-core clamp type	No power disconnection required, plug and play

Performance Features

Stable Output Signal

0.333V standard voltage output maintains precise proportional relationship with primary current RMS value, unaffected by environmental temperature and electromagnetic interference.

Frequency compatibility perfectly supports 50Hz and 60Hz power systems with good harmonic adaptation, ensuring measurement accuracy in complex electrical environments.

Temperature resilience features excellent temperature compensation design, maintaining stable performance across wide temperature ranges, suitable for indoor and outdoor installation environments.

Product Benefits

Installation and Usage Benefits

Benefit Item	Specific Performance	Application Value
Easy Installation	Split-core clamp design, no power disconnection	Reduces installation cost and risk
Plug and Play	No configuration required, ready to use	Quick deployment, saves time
Multi-Purpose	Suitable for various application scenarios	One product meets multiple needs
Cost-Effective	High value solution	Reduces total ownership cost

Quality and Certification Benefits

UL Recognition

UL certified with North America’s most authoritative safety certification, ensuring products meet strict safety standards in design, materials, and manufacturing processes.

CE compliance meets EU health, safety, and environmental requirements, freely marketable in European markets.

RoHS compliant with environmentally friendly design, containing no harmful substances, reflecting sustainable development principles.

Precise measurement uses high-quality core materials and precision winding processes, ensuring measurement errors are controlled within minimum range.

Applications

Transformer Monitoring

Monitoring Object	Application Description	Monitoring Value
Transformer Load Current	Real-time monitoring of primary/secondary current	Prevents overload, extends equipment life
Fan Motor Current	Cooling fan operation status monitoring	Prevents transformer overheating accidents
Pump Motor Current	Oil circulation pump operation monitoring	Ensures cooling system normal operation
OLTC Motor Current	On-load tap changer motor monitoring	Ensures voltage regulation function normality

Switchgear/Breaker Monitoring

Phase Current Measurement

Real-time monitoring of three-phase current balance, timely detection of phase imbalance, phase loss, and other abnormal conditions.

Motor current monitoring tracks operating mechanism motors, auxiliary motors, and other critical equipment operating status.

Heater current detection ensures outdoor equipment anti-condensation systems work properly, maintaining insulation performance.

Automation and Control

Protection Systems

Protection system current measurement provides accurate current signals for relay protection devices, implementing overcurrent, differential, and other protection functions.

Industrial control provides current feedback for PLC/DCS systems, enabling load monitoring and equipment diagnosis.

Energy management provides precise current data supporting power calculation and energy consumption statistical analysis.

Technical Specifications

Basic Parameters

Parameter Item	Technical Specification	Remarks
Measurement Range	1-200A AC	AC current measurement
Output Voltage	0.333V	Proportional to primary current RMS value
Frequency Range	50/60Hz	Supports global power standards
Isolation Voltage	High isolation	Ensures safety and reliability
Operating Temperature	Wide temperature range	Adapts to various environments
Installation Method	Split-core clamp type	No power disconnection installation

Certification Standards

UL Recognition: Complies with North American safety standards
CE Certification: Meets European Union requirements
RoHS Compliant: Environmentally friendly materials, no harmful substances

Installation Guide

What is a Clamp on CT?

Clamp on CT is a current transformer with split-core design that installs around conductors using clamp method, measuring AC current through electromagnetic induction principle and outputting voltage signals proportional to current.

Do you clamp CT on live or neutral?

Correct Installation Position

Proper installation location: Should clamp CT on live wire (hot conductor), not neutral wire. In three-phase systems, clamp on phase lines; in single-phase systems, clamp on hot line to ensure measurement accuracy.

What does CT clamp reading mean?

CT clamp reading represents current values measured through current transformer, output as 0.333V voltage form, requiring conversion coefficients to obtain actual current values, providing continuous real-time current monitoring capability.

Installation Steps

Step-by-Step Process

Select installation position: Identify measured conductor, choose appropriate clamp location
Open transformer: Separate split-core transformer halves
Clamp conductor: Position conductor at transformer center, ensure perpendicular passage
Close transformer: Align and clamp halves tightly, ensure tight contact surfaces
Connect output: Connect output cables to monitoring or control equipment

Precautions

Safety and Accuracy Notes

Ensure single conductor passes through transformer window
Conductor should be positioned at window center
Avoid multiple conductors passing through simultaneously
Regularly check clamp fastening status
Secondary side must not operate open-circuit

What is a Current CT Clamp?

Split-Core Current Transformer Design

Split-core current transformer for the measurement of AC currents from 1 to 200 Amps. The Clamp-On CT easily snaps around the conductor and is ideal for installation on electrical wiring. It has output in voltage form, 0.333V that is proportional to the RMS value of the primary current.

Key Features

High Isolation Performance

High isolation between primary and secondary circuits ensures operator and equipment safety, maintaining safe potential even during primary circuit faults.

Compact design, Plug and Play philosophy throughout product development, adapting to modern electrical equipment space constraints while reducing installation complexity.

Cost-Effective Solution for variety of applications enables one product to meet multiple application requirements, significantly reducing procurement and inventory costs.

High accuracy and durable construction using quality core materials and precision manufacturing processes ensures long-term reliable performance.

Choose professional Clamp on CT for accurate, safe, and reliable current monitoring solutions!