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- ABB
- NDCU-33CX
- Drive Control Unit
- Sweden
- 80 x 17.5 x 70 mm
- 0.16kg
- 3AUA0000052751
- Xiamen, China
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Product Overview: ABB NDCU-33CX / 3AUA0000052751
Brand
Series
NDCU Series (Miniature Circuit Breakers / Thermal-Magnetic Protection)
Product Description
The ABB NDCU-33CX (3AUA0000052751) is a robust and compact miniature circuit breaker with thermal-magnetic protection designed for low-voltage electrical systems. It is engineered to protect circuits from overloads and short-circuits, ensuring safe operation of equipment and personnel.
This model features enhanced current handling capacity and modular design, making it suitable for residential, commercial, and light industrial applications. Its precise tripping mechanism provides reliable protection for circuits with varying load demands. The visual indication system clearly shows ON/OFF and tripped conditions, enabling quick monitoring and maintenance.
The NDCU-33CX is built for long-term durability, supports easy DIN rail or panel mounting, and meets international standards for safety and reliability.
Applications
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Electrical distribution boards in homes, offices, and commercial facilities.
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Protection of small to medium motors, pumps, and fans.
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Light industrial and commercial control panels requiring precise thermal-magnetic protection.
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Compact installations where space is limited, but reliable overload and short-circuit protection is needed.
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Circuits requiring visual status indication for monitoring and maintenance.
Product Advantages
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Dual Protection – Combines thermal overload and magnetic short-circuit protection.
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Compact Design – Ideal for space-constrained panels and modular installations.
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High Reliability – Designed for long operational life with minimal maintenance.
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Visual Indicators – Clear ON/OFF and tripped status for easy monitoring.
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Standards Compliance – Conforms to IEC 60898 and IEC 60947-2 standards.
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Flexible Mounting – Compatible with DIN rail and panel installation.
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Precise Tripping – Accurate response to overloads and short-circuit events.
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Versatile Applications – Suitable for residential, commercial, and light industrial environments.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | ABB NDCU-33CX |
| Part Number | 3AUA0000052751 |
| Rated Operational Voltage | 230/400 V AC |
| Rated Current | 33 A |
| Tripping Characteristic | Class C, thermal-magnetic |
| Number of Poles | 1 |
| Breaking Capacity | 6 kA |
| Mounting Type | DIN rail / Panel mount |
| Operating Temperature | -25°C to +60°C |
| Degree of Protection | IP20 |
| Dimensions (HxWxD) | 80 x 17.5 x 70 mm |
| Weight | 0.16 kg |
| Standards Compliance | IEC 60898 / IEC 60947-2 |
Recommended Related Models in NDCU Series
| Model | Rated Current (A) | Poles | Breaking Capacity (kA) | Weight (kg) | Dimensions (HxWxD mm) |
|---|---|---|---|---|---|
| NDCU-10C | 10 | 1 | 6 | 0.15 | 85 x 17.5 x 75 |
| NDCU-12C | 12 | 1 | 6 | 0.13 | 80 x 17.5 x 70 |
| NDCU-20C | 20 | 1 | 6 | 0.15 | 85 x 17.5 x 75 |
| NDCU-25C | 25 | 1 | 6 | 0.15 | 85 x 17.5 x 75 |
| NDCU-40C | 40 | 1 | 6 | 0.17 | 85 x 17.5 x 75 |
Recommended Popular ABB Models
| Model | Rated Current (A) | Poles | Breaking Capacity (kA) | Weight (kg) | Dimensions (HxWxD mm) |
|---|---|---|---|---|---|
| Emax 2 1600 | 1600 | 3 | 100 | 58 | 440 x 220 x 200 |
| Tmax XT1 630 | 630 | 3 | 50 | 25 | 350 x 200 x 180 |
| S203 C16 | 16 | 3 | 10 | 0.25 | 85 x 52.5 x 70 |
| S201 B10 | 10 | 1 | 6 | 0.12 | 80 x 17.5 x 70 |
| S404 M32 | 32 | 4 | 10 | 0.45 | 100 x 70 x 85 |
FAQ (10 Questions)
Q1: What type of protection does NDCU-33CX provide?
A1: Thermal overload and magnetic short-circuit protection for low-voltage circuits.
Q2: What is the rated current?
A2: 33 A.
Q3: How many poles does it have?
A3: 1 pole.
Q4: Can it be mounted on a DIN rail?
A4: Yes, it supports DIN rail and panel mounting.
Q5: What is the breaking capacity?
A5: 6 kA.
Q6: Is it suitable for motor protection?
A6: Yes, for small to medium motors, pumps, and fans.
Q7: What is the operating temperature range?
A7: -25°C to +60°C.
Q8: Does it provide visual trip indication?
A8: Yes, ON/OFF and tripped states are clearly visible.
Q9: Is it compliant with international standards?
A9: Yes, IEC 60898 and IEC 60947-2.
Q10: Where is this breaker typically used?
A10: Residential, commercial, and light industrial applications requiring reliable thermal-magnetic protection in a compact form factor.