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T6V 800 PR221DS｜ABB Tmax T6 Series High Performance Moulded Case Circuit Breaker (MCCB)
Full Model: T6V 800 PR221DS-LS/I In=800 (Common Order Codes: 1SDA069432R1, 1SDA069429R1, 3P/4P selectable)
Brand: ABB (SACE Tmax Series)
- Detailed Model Interpretation
| Model Segment | Meaning | Key Description |
| T6 | Series Designation | Tmax T6 series, frame current 800A, suitable for medium and high voltage power distribution systems |
| V | Breaking Capacity Class | Class V, ultra-high breaking capacity: 120kA at 400V, 200kA at 220V |
| 800 | Rated Current | 800A (same as frame current) |
| PR221DS | Trip Unit Type | Electronic intelligent trip unit with LS/I protection (Long-time delay L, Short-time delay S, Instantaneous I) |
| LS/I | Protection Configuration | Standard three-stage protection; earth fault protection optional (extra configuration required) |
| F F | Mounting / Connection | First F: Fixed mounting; Second F: Front connection |
- Core Technical Parameters
| Item | Specification | Remarks |
| Rated Voltage (Ue) | 690V AC | Suitable for industrial high-voltage power distribution systems |
| Rated Insulation Voltage (Ui) | 1000V AC | Higher than rated operating voltage, large safety margin |
| Ultimate Breaking Capacity (Icu) | 120kA@400V, 200kA@220V | Highest Class V, suitable for harsh industrial environments |
| Rated Operational Current (In) | 800A | Maximum continuous operating current |
| Poles | 3P/4P selectable | 3P for three-phase circuits, 4P includes neutral protection |
| Trip Characteristic | LS/I three-stage protection | Long-time delay inverse time, short-time / instantaneous definite time |
| Mounting Type | Fixed | Draw-out type also available (special model required) |
| Connection Type | Front connection | Compatible with cables or busbars |
| Degree of Protection | IP30 | Standard switchgear installation protection |
| Applicable Standard | IEC 60947-2 | International standard for low-voltage switchgear |
- Key Features & Applications
Core Advantages
- Ultra-high breaking capacity: Class V can withstand severe short-circuit faults and ensure system safety
- Intelligent protection: PR221DS trip unit provides accurate overload and short-circuit protection with adjustable parameters
- Reliable and durable: ABB Tmax series design, suitable for frequent operation and harsh industrial environments
- Flexible extension: Supports various accessories (auxiliary contacts, alarm contacts, undervoltage release, etc.)
Typical Applications
Main power distribution systems in large industrial plants
690V high-voltage Motor Control Centers (MCC)
Power supply for data centers and critical infrastructure
Combiner box protection for new energy power systems (PV, wind power)
Marine and offshore platform power distribution systems
- Reference Replacement Models
Same-brand Upgrades / Replacements
| Model | Breaking Capacity | Trip Type | Application |
| T6V 800 PR222DS-LSIG | 120kA@400V | With earth fault protection (G) | Systems requiring earth fault detection |
| T6V 800 PR223DS | 120kA@400V | Advanced intelligent trip unit | Applications requiring remote monitoring and communication |
| T6S 800 PR221DS | 70kA@400V | Standard breaking capacity | General industrial power distribution, lower cost |
Cross-brand Alternatives
| Brand | Model | Key Matching Parameters |
| Schneider | Masterpact MT25H1 800A | 800A, 120kA breaking, three-stage protection |
| Siemens | 3WL1210-3BB36-4GA4 | 800A, 100kA breaking, intelligent trip unit |
| Mitsubishi | NF800-SEW | 800A, 100kA breaking, electronic trip unit |
- Selection Notes
- Breaking capacity matching: Select V/S/H/N/L classes based on system short-circuit current calculation
- Protection function selection: Basic LS/I meets most needs; choose LSIG for earth fault protection
- Mounting type: Fixed for standard switchgear, draw-out for easy maintenance and replacement
- Accessory configuration: Select auxiliary contacts, alarm contacts, motor operators, etc., according to control requirements
- Voltage compatibility: T6V suitable for systems up to 690V; use dedicated 1000V series (e.g., T6L) for higher voltages
