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The ABB DSTA 171 is a high-performance digital thermal overload relay specifically designed for advanced industrial motor protection. It monitors motor current and temperature continuously, providing precise overload protection to prevent equipment damage and unplanned downtime. Its robust industrial construction ensures long-term reliability, while advanced electronics enable flexible configuration and integration into modern automation systems.
Protection of industrial AC and DC motors in automation systems
Monitoring of pumps, conveyors, compressors, and other motor-driven equipment
Integration into motor control centers (MCCs) and control panels
High-demand manufacturing environments requiring precise motor protection
Energy management and predictive maintenance applications
Accurate Thermal Overload Protection: Safeguards motors against overheating and overcurrent
Fast Response: Quick tripping reduces downtime and prevents equipment damage
Robust Industrial Design: Resistant to vibration, temperature extremes, and dust
Compact and Space-Saving: Suitable for DIN rail and panel mounting
Energy Efficient: Minimal power loss during monitoring and operation
User-Friendly Configuration: Adjustable tripping thresholds for flexible application
Brand: ABB
Series: DSTA Series – digital thermal overload relays for motor protection and industrial automation
| Parameter | Specification |
|---|---|
| Model | DSTA 171 / DSTA171 |
| Part Number | 3BSE018311R1 |
| Rated Voltage | 380–480 V AC |
| Rated Current | 0.5–171 A |
| Control Type | Digital Thermal Overload Relay |
| Communication | Optional communication interface for remote monitoring |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Response Time | < 100 ms |
| Mounting | DIN Rail / Panel Mount |
| Dimensions (L × W × H) | 150 × 95 × 75 mm |
| Weight | 1.32 kg |
| Model | Key Parameters |
|---|---|
| DSTA 160 | Rated Current 0.5–160 A, Dimensions 145×90×70 mm, Weight 1.2 kg |
| DSTA 170 | Rated Current 0.5–170 A, Dimensions 150×95×75 mm, Weight 1.3 kg |
| DSTA 172 | Rated Current 0.5–172 A, Dimensions 152×95×75 mm, Weight 1.34 kg |
| DSTA 180 | Rated Current 0.5–180 A, Dimensions 155×100×75 mm, Weight 1.35 kg |
| DSTA 190 | Rated Current 0.5–190 A, Dimensions 155×100×80 mm, Weight 1.4 kg |
| Model | Key Parameters |
|---|---|
| ACS580 | VFD, Input 3-phase 380–480 V, Output 0–480 V, Weight 8–15 kg |
| ACH580 | High-performance drive, Input 3-phase 380–500 V, Weight 10–18 kg |
| AF100 | Soft starter, Input 200–600 V, Output 0–600 V, Weight 5–12 kg |
| IRB 6700 | Industrial robot controller, Max payload 235 kg, Weight 540 kg |
| CP600 | Operator panel, Touchscreen interface, Dimensions 320×240×50 mm, Weight 2.5 kg |
Q1: What is the rated voltage of DSTA 171?
A1: The device operates at 380–480 V AC, suitable for motor protection in industrial circuits.
Q2: What is the rated current range?
A2: It supports motor currents from 0.5 A up to 171 A.
Q3: What is the operating temperature range?
A3: DSTA 171 operates safely from -20°C to +60°C.
Q4: Can DSTA 171 be mounted on DIN rails?
A4: Yes, it is designed for both DIN rail and panel mounting.
Q5: What are the dimensions and weight?
A5: Dimensions are 150 × 95 × 75 mm and the weight is 1.32 kg.
Q6: Is DSTA 171 suitable for harsh industrial environments?
A6: Yes, it is resistant to vibration, dust, and high humidity.
Q7: What type of protection does DSTA 171 provide?
A7: It provides precise thermal overload protection for motors.
Q8: Can it integrate with remote monitoring systems?
A8: Yes, optional communication modules allow for integration into automation and monitoring systems.
Q9: What is the response time of DSTA 171?
A9: The response time is less than 100 milliseconds for fast motor protection.
Q10: Does DSTA 171 require software or calibration?
A10: Minimal manual configuration is required; tripping thresholds are adjustable, with optional software for monitoring.