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- TA521
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- Sweden
- 105 × 85 × 60 mm
- 1.1kg
- 1SAP180300R0001
- Xiamen, China
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ABB TA521 (1SAP180300R0001) Product Overview
Product Introduction
The ABB TA521 is a high‑performance current transformer designed for precise measurement of AC currents in industrial and energy distribution systems. It is used in protection, metering, and control applications where accurate current sensing is critical.
The TA521 features a robust insulation design, high accuracy, and reliable long-term performance under industrial conditions. Its compact form allows for easy integration into switchgear, panels, and transformers. It is suitable for both low and medium voltage systems and supports standard protective relays and metering equipment.
This transformer provides accurate current conversion while minimizing phase displacement, ensuring that both measurement and protection systems operate reliably.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | ABB TA521 (1SAP180300R0001) |
| Product Type | Current Transformer (CT) |
| Rated Primary Current | 50–1200 A |
| Rated Secondary Current | 5 A |
| Accuracy Class | 0.5S / 1 / 3 |
| Rated Burden | 5–15 VA |
| Insulation Level | 12/24 kV AC |
| Frequency | 50–60 Hz |
| Phase | Single-phase |
| Mounting | DIN rail or panel mount |
| Dimensions (L × W × H) | 105 × 85 × 60 mm |
| Weight | 1.1 kg |
| Operating Temperature | –25 °C to +55 °C |
| Storage Temperature | –40 °C to +70 °C |
| Standards Compliance | IEC 61869, IEC 60044 |
| Connection Type | Screw terminals |
| Safety Features | High dielectric strength, short-circuit resistant |
Product Applications
The ABB TA521 current transformer is suitable for a variety of applications:
• Power monitoring and metering in industrial and commercial electrical systems.
• Protection systems in switchgear, including overload, differential, and earth fault protection.
• Integration with energy management systems for load monitoring and optimization.
• Control of circuit breakers, relays, and automation equipment.
• Medium-voltage and low-voltage distribution networks.
• Renewable energy installations requiring precise current measurement.
• Substations and transformer monitoring.
Product Advantages
• High Accuracy: Suitable for precise metering and protective relay applications.
• Robust Construction: Designed to withstand harsh industrial environments.
• Compact Design: Easy to integrate into panels and cabinets.
• Wide Current Range: Handles primary currents from 50 A up to 1200 A.
• Reliable Insulation: Ensures safe operation under high-voltage conditions.
• International Standards Compliant: Meets IEC 61869 and IEC 60044 for metering and protection.
• Low Maintenance: Solid construction reduces need for maintenance over time.
• Flexible Mounting: Can be mounted on DIN rails or panels.
Brand and Series Information
• Brand: ABB
• Series: TA Series — Industrial Current Transformers for protection and metering applications.
Recommended Related Models (Same Series)
| Model | Rated Primary Current | Rated Secondary Current | Accuracy Class | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| TA522 | 50–1000 A | 5 A | 0.5S / 1 | 105 × 85 × 60 | 1.0 |
| TA523 | 100–1200 A | 5 A | 0.5S / 1 | 110 × 90 × 65 | 1.2 |
| TA524 | 200–1000 A | 5 A | 1 / 3 | 115 × 95 × 70 | 1.3 |
| TA525 | 50–800 A | 5 A | 0.5 / 1 | 100 × 80 × 60 | 0.95 |
| TA526 | 100–1200 A | 5 A | 0.5S / 1 | 120 × 100 × 75 | 1.4 |
Recommended Popular Models (Same Brand)
| Model | Type | Rated Current | Accuracy Class | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| D16 | Solid-State Relay | 24–240 V | 16 A | 85 × 30 × 55 | 0.23 |
| D25 | Solid-State Relay | 24–240 V | 25 A | 90 × 35 × 60 | 0.30 |
| D40 | Solid-State Relay | 24–600 V | 40 A | 120 × 50 × 80 | 0.52 |
| T7 | Control Relay | 24–240 V | 7 A | 70 × 25 × 45 | 0.18 |
| T9 | Control Relay | 24–600 V | 9 A | 80 × 30 × 50 | 0.20 |
FAQ – ABB TA521
Q1: What is the rated primary current of the TA521?
A1: The rated primary current ranges from 50 A to 1200 A.
Q2: What is the rated secondary current?
A2: The rated secondary current is 5 A.
Q3: What accuracy class does it support?
A3: Accuracy classes 0.5S, 1, and 3 are supported.
Q4: Can it be mounted on a DIN rail?
A4: Yes, the TA521 supports DIN rail and panel mounting.
Q5: What is the operating temperature range?
A5: –25 °C to +55 °C.
Q6: What standards does the TA521 comply with?
A6: IEC 61869 and IEC 60044 for metering and protection.
Q7: What protection features are included?
A7: High dielectric strength and short-circuit resistance.
Q8: What are the physical dimensions and weight?
A8: 105 × 85 × 60 mm, weight 1.1 kg.
Q9: What applications is it suitable for?
A9: Power metering, protection relays, control circuits, and energy management systems.
Q10: Can it measure AC current in medium-voltage systems?
A10: Yes, it is suitable for both low and medium-voltage AC systems.