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- TB806
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- Sweden
- 80 × 50 × 120 mm
- 0.38kg
- 3BSE008536R1
- Xiamen, China
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ABB TB806 (3BSE008536R1) Product Overview
Product Introduction
The ABB TB806 is a thermal overload relay designed for protecting three-phase motors from overcurrent and overheating conditions. It provides reliable monitoring of motor current, tripping when the load exceeds preset thresholds, thereby preventing motor damage and system downtime.
This model features robust industrial-grade construction, precise adjustment options, and compatibility with standard contactors, making it suitable for a wide range of industrial motor protection applications. Its compact design allows for easy integration in control panels and starter assemblies.
The TB806 is ideal for use in manufacturing, processing plants, HVAC systems, and other motor-driven installations where reliable protection and safety are essential.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | ABB TB806 (3BSE008536R1) |
| Product Type | Thermal Overload Relay |
| Rated Operational Current | 0.63–1 A |
| Adjustable Current Range | 0.63–1 A |
| Tripping Class | 10A |
| Rated Voltage | 690 V AC |
| Frequency | 50–60 Hz |
| Number of Poles | 3 |
| Mounting | Direct on contactor or panel mount |
| Reset Type | Manual / Automatic |
| Dimensions (L × W × H) | 80 × 50 × 120 mm |
| Weight | 0.38 kg |
| Operating Temperature | –20 °C to +60 °C |
| Protection Features | Overcurrent, phase failure, thermal protection |
| Standards Compliance | IEC 60947-4-1, IEC 60947-5-1 |
Product Applications
The TB806 thermal overload relay is commonly applied in:
• Protection of three-phase motors in industrial automation and manufacturing systems.
• Pumps, fans, compressors, and conveyors in factories or plants.
• HVAC motor protection in commercial and industrial buildings.
• Control cabinets and motor starter assemblies for safe operation.
• Energy distribution networks where motor load protection is critical.
• Water treatment, chemical processing, and production facilities.
• Integration with contactors to ensure coordinated motor protection and operation.
Product Advantages
• Effective Motor Protection: Prevents overheating and damage caused by overcurrent or phase failure.
• Adjustable Current Settings: Allows precise matching to various motor ratings for versatile applications.
• Compact and Space-Saving Design: Fits standard panels and starter assemblies.
• Reliable Electromechanical Operation: Ensures consistent and predictable tripping.
• Dual Reset Options: Can be reset manually or automatically depending on operational needs.
• Durable Construction: Industrial-grade design resists vibration, temperature variation, and harsh environments.
• Compliance with Standards: Meets IEC 60947 for safety, performance, and interoperability.
• Easy Installation: Direct mounting on compatible contactors simplifies assembly.
Brand and Series Information
• Brand: ABB
• Series: TB Series — Thermal overload relays for three-phase motor protection in industrial applications.
Recommended Related Models (Same Series)
| Model | Rated Operational Current | Tripping Class | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| TB801 | 0.1–0.16 A | 10A | 65 × 40 × 100 | 0.28 |
| TB802 | 0.16–0.25 A | 10A | 70 × 45 × 110 | 0.30 |
| TB803 | 0.25–0.4 A | 10A | 70 × 45 × 110 | 0.32 |
| TB804 | 0.4–0.63 A | 10A | 75 × 50 × 115 | 0.35 |
| TB805 | 0.16–0.25 A | 10A | 70 × 45 × 110 | 0.32 |
Recommended Popular Models (Same Brand)
| Model | Type | Rated Current | Tripping 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 TB806
Q1: What is the rated operational current for TB806?
A1: 0.63–1 A.
Q2: What is the tripping class of TB806?
A2: 10A.
Q3: Can the TB806 be reset automatically?
A3: Yes, it supports both manual and automatic reset.
Q4: What is the rated voltage of TB806?
A4: Up to 690 V AC.
Q5: How many poles does it have?
A5: Three poles for three-phase motor protection.
Q6: Can it be mounted directly on a contactor?
A6: Yes, it is designed for direct mounting on compatible contactors.
Q7: What are the physical dimensions and weight?
A7: 80 × 50 × 120 mm, weight 0.38 kg.
Q8: What protection features does TB806 provide?
A8: Overcurrent, phase failure, and thermal protection.
Q9: Is it suitable for industrial environments?
A9: Yes, it is built to withstand harsh industrial conditions.
Q10: Which standards does TB806 comply with?
A10: IEC 60947-4-1 and IEC 60947-5-1.