Carlo Gavazzi CTG160 core balance transformer with a 160 mm internal diameter and 1000/1 ratio designed for earth leakage current detection applications.
SKU:CTG160MPN:CTG160
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Why Choose the Carlo Gavazzi CTG160 Core Balance Transformer?
The Carlo Gavazzi CTG160 is a high-sensitivity core balance transformer designed for reliable earth leakage current detection in industrial electrical systems. As part of the Carlo Gavazzi CTG series, it detects residual current by monitoring the balance of currents flowing through conductors passing through the transformer core and provides a secondary signal for use with compatible earth leakage monitoring relays.
The CTG160 features a large 160 mm internal diameter, making it suitable for installations where multiple conductors or larger cable arrangements require increased clearance. It is designed for integration into electrical distribution panels, switchboards and industrial protection systems.
With a 1000/1 current transformer ratio and a 320 A nominal current rating, the CTG160 provides accurate residual current detection for applications requiring dependable earth leakage monitoring. It is suitable for use with compatible Carlo Gavazzi earth leakage monitoring relays including DEA71 and DEB71 series devices.
Key Advantages
High-sensitivity core balance transformer for earth leakage current detection.
160 mm internal diameter suitable for larger conductor installations.
1000/1 transformer ratio for residual current monitoring applications.
Compatible with Carlo Gavazzi earth leakage monitoring relays.
Suitable for industrial electrical protection and monitoring systems.
Robust construction for reliable operation in electrical installations.
Key Features
Carlo Gavazzi CTG series core balance transformer.
160 mm internal aperture.
1000/1 current transformer ratio.
320 A nominal current rating.
50–60 Hz operating frequency.
720 V AC maximum system voltage.
3 kV AC rated insulation level.
Designed for installation inside electrical enclosures and switchboards.
Reliable Earth Leakage Detection for Industrial Systems
Core balance transformers such as the Carlo Gavazzi CTG160 provide an effective method of detecting residual current caused by insulation faults or unwanted leakage paths. By measuring the difference between currents passing through the transformer core, the device allows connected monitoring relays to identify abnormal electrical conditions.
The CTG series is designed to improve electrical safety in industrial installations by supporting reliable earth leakage monitoring for motors, machinery, power distribution equipment and automation systems.
Typical Applications
Earth leakage monitoring systems.
Industrial motor protection applications.
Pump and machinery protection systems.
Electrical distribution panels.
Industrial equipment protection.
Automation and power monitoring installations.
Technical Specifications
Manufacturer
Carlo Gavazzi
Series
CTG
Model
CTG160
Product type
Core balance transformer
Internal diameter
160 mm
Transformer ratio
1000/1
Nominal current
320 A
Frequency range
50–60 Hz
Maximum system voltage
720 V AC
Rated insulation level
3 kV AC
Protection rating
IP20
Mounting
Panel mounting
Secondary connection
Screw terminals
Standards
IEC 61869-2
Frequently Asked Questions
What is the Carlo Gavazzi CTG160 used for?
The CTG160 is a core balance transformer used to detect earth leakage currents by monitoring current imbalance in electrical conductors.
What is the internal diameter of the CTG160?
The Carlo Gavazzi CTG160 has a 160 mm internal diameter for routing larger monitored conductors through the transformer.
What is the transformer ratio of the CTG160?
The CTG160 has a 1000/1 transformer ratio for residual current monitoring applications.
Which monitoring relays are compatible with the CTG160?
The CTG160 is designed for use with compatible Carlo Gavazzi earth leakage monitoring relays including the DEA71 and DEB71 series.
Can the CTG160 be used for industrial applications?
Yes, the CTG160 is designed for industrial electrical installations including machinery, power distribution and automation systems.
Trusted by Industrial Safety Engineers Worldwide
Carlo Gavazzi CTG core balance transformers are widely used by electrical engineers and automation professionals to improve system safety through reliable earth leakage detection and residual current monitoring.
Manufacturer
Carlo Gavazzi
Series
CTG
Model
CTG160
Product type
Core balance transformer
Internal diameter
160 mm
Transformer ratio
1000/1
Nominal current
320 A
Frequency range
50–60 Hz
Maximum system voltage
720 V AC
Rated insulation level
3 kV AC
Protection rating
IP20
Mounting
Panel mounting
Secondary connection
Screw terminals
Standards
IEC 61869-2
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...