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A74-11500 – CURRENT TRANSFORMER 500 AAC
Carlo Gavazzi A74-11500 is a three-phase AC current transformer with a 50–500 A AC measuring range and proportional 0.4–4 Vp output for high-current industrial motor, machinery and electrical load monitoring applications.
£171.96
Why Choose the Carlo Gavazzi A74-11500 Current Transformer?
The Carlo Gavazzi A74-11500 is a robust three-phase AC current transformer designed for current measurement and monitoring in industrial automation, motor control and electrical systems. As part of the Carlo Gavazzi A74 Series, it provides isolated current sensing for three-phase loads with an input measuring range extending up to 500 A AC.
Designed for high-current industrial applications, the A74-11500 converts the measured primary current into a proportional low-voltage analogue signal. It provides a 0.4–4 Vp output, with an analogue RMS output of approximately 0.4–2.83 V, enabling connection to compatible Carlo Gavazzi current monitoring relays and associated measurement equipment.
With a measuring range of approximately 50–500 A AC and a maximum measuring current of 500 A AC, the A74-11500 is particularly suitable for monitoring larger three-phase motors, pumps, compressors, conveyors and industrial machinery. Its direct or wall-mounted construction provides a practical permanent installation solution for electrical control panels and machinery applications.
Key Advantages
- Designed for three-phase AC current measurement.
- Wide 50–500 A AC measuring range for high-current industrial loads.
- Maximum measuring current of 500 A AC.
- Provides a proportional 0.4–4 Vp output signal.
- Analogue RMS output of approximately 0.4–2.83 V.
- Provides isolated current sensing for industrial monitoring equipment.
- Suitable for compatible Carlo Gavazzi current monitoring relays.
- Wall or direct mounting for permanent industrial installation.
- Fixed configuration with no adjustment required.
- UL approved for applicable industrial installations.
Key Features
- Carlo Gavazzi A74 Series current transformer.
- Three-phase AC current measurement.
- 50–500 A AC measuring range.
- 500 A AC maximum measuring current.
- 0.4–4 Vp proportional output.
- 0.4–2.83 V analogue RMS output.
- Designed for high-current motor and electrical load monitoring.
- Compatible with applicable Carlo Gavazzi three-phase current monitoring equipment.
- Fixed measurement characteristic with no adjustable settings.
- Wall/direct mounting.
- Direct DIN rail mounting not supported.
- Suitable for permanent industrial control panel installations.
- UL approval for applicable applications.
Reliable High-Current Three-Phase Monitoring
Current transformers such as the Carlo Gavazzi A74-11500 allow industrial control systems to monitor high AC currents while maintaining electrical isolation between the primary conductors and the associated monitoring circuitry. The transformer converts the measured current into a proportional low-voltage signal that can be processed safely by compatible current monitoring equipment.
The A74-11500 is particularly suited to larger three-phase motors and machinery operating within its 50–500 A AC measuring range. When connected to compatible monitoring equipment, the transformer can form part of a system used to identify abnormal current conditions, monitor machine loading and support protective control functions in demanding industrial installations.
Typical Applications
- High-current three-phase motor monitoring.
- Industrial machinery and production equipment.
- Large pumps, fans and compressor systems.
- Conveyor and material handling equipment.
- Industrial electrical control panels.
- Electrical load and current monitoring systems.
- Current monitoring relay applications.
- OEM automation and machine building.
- Three-phase loads requiring current measurement up to 500 A AC.
Technical Specifications
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| Device Type | Solid-core CT | |
|---|---|---|
| Manufacturer | Carlo Gavazzi | |
| Series | A74 | |
| Model | A74-11500 | |
| Product type | Three-phase AC current transformer | |
| Measured current type | AC | |
| Number of phases | 3 | |
| Measuring current range | 50–500 A AC | |
| Maximum measuring current | 500 A AC | |
| Output signal | 0.4–4 Vp | |
| Analogue output | 0.4–2.83 V RMS | |
| Adjustable settings | No | |
| Mounting type | Wall / direct mounting | |
| Rail mounting | No | |
| Approval | UL |
Frequently Asked Questions
What is the Carlo Gavazzi A74-11500 used for?
The Carlo Gavazzi A74-11500 is a three-phase AC current transformer designed for monitoring high-current industrial motors, machinery and electrical loads and providing a proportional low-voltage signal to compatible monitoring equipment.
What current range can the Carlo Gavazzi A74-11500 measure?
The A74-11500 is designed for a measuring range of approximately 50–500 A AC, with a maximum measuring current of 500 A AC.
What output does the Carlo Gavazzi A74-11500 provide?
The transformer provides a proportional output signal of 0.4–4 Vp, with its analogue RMS output specified at approximately 0.4–2.83 V.
Is the Carlo Gavazzi A74-11500 designed for three-phase systems?
Yes. The A74-11500 is specifically designed as a three-phase AC current transformer for industrial motor, machinery and electrical load monitoring applications.
Can the Carlo Gavazzi A74-11500 be mounted on DIN rail?
No. The A74-11500 is designed for wall or direct mounting and does not support direct DIN rail mounting.
Does the Carlo Gavazzi A74-11500 require adjustment?
No. The A74-11500 has no adjustable settings, providing a fixed current-to-voltage measurement characteristic for straightforward integration with compatible monitoring equipment.
Trusted by Industrial Automation Professionals
Carlo Gavazzi A74 Series current transformers provide dependable three-phase AC current measurement for industrial automation, motor monitoring and machinery applications, combining isolated high-current sensing, proportional voltage output and robust direct-mounted construction.
