Carlo Gavazzi A74-1020 is a three-phase AC current transformer for measuring currents up to 20 A AC and providing a proportional analogue voltage output for industrial current monitoring applications.
£165.93
The Carlo Gavazzi A74-1020 is a compact three-phase AC current transformer designed for current monitoring applications in industrial electrical and automation systems. It measures AC current across three conductors and provides a proportional voltage output for connection to compatible Carlo Gavazzi current monitoring relays and associated control equipment.
Designed for currents up to 20 A AC, the A74-1020 provides an analogue voltage output proportional to the measured current. Its three-phase construction allows the three monitored conductors to pass through individual apertures in a single transformer assembly, providing a practical solution for monitoring three-phase motors, machinery and electrical loads.
The A74-1020 is designed for wall or direct mounting rather than DIN rail installation. With a compact construction, integrated connection cable and high dielectric withstand capability, it is well suited to industrial control cabinets and machinery where reliable current sensing is required without making a direct electrical connection to the monitored conductors.
Current transformers such as the Carlo Gavazzi A74-1020 allow industrial control equipment to monitor load current without placing the monitoring electronics directly in the high-current conductor path. The three phase conductors are passed through the transformer's apertures, allowing the device to produce an isolated analogue signal proportional to the current being monitored.
The A74-1020 is particularly useful with compatible Carlo Gavazzi monitoring relays in motor and machinery applications. By providing a signal corresponding to the highest current flowing through the three monitored conductors, the transformer enables associated monitoring equipment to identify abnormal load conditions such as excessive current and support protective or control functions.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | A74 |
| Model | A74-1020 |
| Product type | Three-phase AC current transformer |
| Measured current type | AC |
| Number of phases | 3 |
| Maximum measuring current | 20 A AC |
| Analogue output | Proportional voltage output |
| Adjustable settings | No |
| Mounting type | Wall / direct mounting |
| DIN rail mounting | No |
| Conductor arrangement | 3 conductor apertures |
| Output response | Proportional to the highest current measured in the three conductors |
| Approval | UL |
The Carlo Gavazzi A74-1020 is a three-phase AC current transformer used to measure current in industrial motors, machinery and electrical loads and provide a proportional analogue signal to compatible monitoring equipment.
The A74-1020 is designed for three-phase AC current monitoring with a maximum measuring current of 20 A AC.
Yes. The transformer has separate apertures for the three phase conductors and provides an output corresponding to the highest current value measured across those conductors.
The A74-1020 provides an analogue voltage output proportional to the measured AC current, allowing it to interface with compatible current monitoring equipment.
No. The A74-1020 is designed for wall or direct mounting and is not intended for direct DIN rail mounting.
The transformer is typically installed in industrial electrical panels and machinery where the three monitored phase conductors can be routed through its current-sensing apertures.
Carlo Gavazzi current transformers are designed for dependable electrical measurement and monitoring in industrial automation systems, providing isolated current sensing for motors, machinery and three-phase electrical loads when used with compatible monitoring equipment.
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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...