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A74-1020 – CURRENT TRANSFORMER 20 AAC
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.
£141.04
Why Choose the Carlo Gavazzi A74-1020 Current Transformer?
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.
Key Advantages
- Designed for three-phase AC current measurement.
- Measures currents up to 20 A AC.
- Proportional analogue voltage output for compatible monitoring equipment.
- Monitors all three phase conductors through a single compact transformer assembly.
- Provides electrical isolation between the monitored conductors and measurement output.
- Wall or direct mounting for straightforward installation.
- No adjustable settings required for operation.
- Suitable for industrial motor, machinery and electrical load monitoring.
- UL approved for use in applicable industrial installations.
Key Features
- Carlo Gavazzi A74 Series current transformer.
- Three-phase AC current measurement.
- 20 A AC maximum measuring current.
- Current measuring range suited to loads up to 20 A AC.
- Analogue voltage output proportional to measured current.
- Three separate conductor apertures for three-phase monitoring.
- Output responds to the highest current value measured across the three conductors.
- High dielectric isolation between primary conductors and output circuitry.
- Fixed configuration with no adjustable settings.
- Wall/direct mounting.
- Not designed for direct DIN rail mounting.
- Integrated connection cable for connection to monitoring equipment.
- UL approval for applicable installations.
Reliable Three-Phase Current Monitoring
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.
Typical Applications
- Three-phase motor current monitoring.
- Industrial machinery and production equipment.
- Pumps, fans and compressor systems.
- Conveyor and material handling equipment.
- Industrial control and monitoring panels.
- Electrical load monitoring systems.
- Current monitoring relay applications.
- OEM automation and machine building.
Technical Specifications
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| Device Type | Solid-core CT | |
|---|---|---|
| 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 |
Frequently Asked Questions
What is the Carlo Gavazzi A74-1020 used for?
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.
What current can the A74-1020 measure?
The A74-1020 is designed for three-phase AC current monitoring with a maximum measuring current of 20 A AC.
Does the A74-1020 monitor all three phases?
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.
What type of output does the Carlo Gavazzi A74-1020 provide?
The A74-1020 provides an analogue voltage output proportional to the measured AC current, allowing it to interface with compatible current monitoring equipment.
Can the Carlo Gavazzi A74-1020 be mounted on DIN rail?
No. The A74-1020 is designed for wall or direct mounting and is not intended for direct DIN rail mounting.
Where is the A74-1020 typically installed?
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.
Trusted by Industrial Automation Professionals
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.
