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This is an ABB SACE Tmax T6N 800A MCCB equipped with a TMA800/4000-8000 adjustable thermomagnetic release, 3-pôle, fixed mount, front connection, with N-type breaking capacity (36kA@400V). It is used as a main switch in industrial main circuits, heavy-duty motor protection, and power distribution systems.
- Full Model Code Breakdown
| Section | Marking | Description | Technical Note |
| 1 | T6 | Frame size | Tmax T series MCCB, max frame current 800A, conception compacte (depth 103.5mm) |
| 2 | N | Classe de pouvoir de coupure | N‑type standard breaking capacity: 36kA@400V/415V, 25kA@500V, 20kA@600V |
| 3 | 800 | Frame rated current | Maximum rated current of the disjoncteur frame: 800UN |
| 4 | TM/TMA | Release type | Thermomagnetic Adjustable release – both overload (thermal) and short‑circuit (magnetic) protection are adjustable |
| 5 | 800 | Courant nominal (Dans) | Continuous operating current: 800UN |
| 6 | 40000‑8000 | Instantaneous trip range | I3 = 4000–8000A, adjustable short‑circuit instantaneous protection |
| 7 | F | Mounting type | Fixé (non‑withdrawable) |
| 8 | F | Connection type | Connexion frontale |
| 9 | 3P. | Poteaux | 3‑pole circuit breaker for three‑phase systems |
- Paramètres techniques clés
| Article | Valeur | Remarques |
| Product type | SACE Tmax T6N 800A MCCB | Factory code: 1SDA060214R1 |
| Tension d'isolement nominale (Interface utilisateur) | 1000V | Maximum continuous voltage for insulation parts |
| Rated impulse withstand voltage (Ump) | 8kV | Capability to withstand transient high voltage |
| Rated operating voltage (Ue) | 690V et | Max operating voltage |
| Fréquence | 50/60Hz | For standard mains systems |
| Caractéristique du voyage | Adjustable thermomagnetic | Surcharge (inverse time), short‑circuit (instantaneous) |
| Ultimate breaking capacity (ICU) | 36kA@400V | N class |
| 25kA@500V | ||
| 20kA@600V | ||
| Service breaking capacity (Ics) | 100% ICU | Reusable after tripping |
| Courant nominal (Dans) | 800UN | Maximum continuous current |
| Instantaneous trip range | 4000–8000A | I3 = 5–10In, réglable |
| Dimensions (mm) | H×L×P: 268×210×103.5 | Uniform depth for panel layout |
| Poids | environ. 9kilos | Standard |
| Protection degree | IP30 | CEI 60529 |
- Applications typiques
- Industrial power distribution
Main or sub-switch for 3-phase 800A circuits in factories, workshops, data centers.
- Large motor protection
Three-phase induction motors up to approx. 400kW (380V)
Critical motor circuits requiring adjustable overload and short-circuit protection
- Building electrical
Main switchboards in commercial and high-rise buildings
Power circuits for HVAC, pompes, and large equipment
- Renewable energy
Main switches in combiner boxes for PV and wind power systems
DC-side protection for energy storage (DC version required)
- Other heavy industries
Mining, ports, railways, and applications requiring high reliability and adjustable protection.
- Replacement Models
4.1 ABB Upgrades / Replacements
| Modèle de remplacement | Différence principale | Application |
| T6S800 TMA800/4000‑8000 FF 3P | Breaking capacity upgraded to S class (50kA@400V) | Systems with higher short‑circuit current near transformers |
| T6L800 TMA800/4000‑8000 FF 3P | Breaking capacity upgraded to L class (70kA@400V) | Heavy industrial grids and large plants |
| T6N800 PR221DS‑LSI 800 FF 3P | Electronic LSI release (Long / Short / Instantané) | Complex systems requiring precise grading and selectivity |
| XT6N800 TMA800/4000‑8000 FF 3P | New‑generation Tmax XT, same dimensions, performances améliorées | System upgrades and new installations |
4.2 Cross-Brand Equivalents
| Marque | Modèle | Paramètres de correspondance clés | Remarques |
| Schneider | NSX630N TM800D 3P | In=800A, Icu = 36 kA, thermomagnetic | NSX max frame 630A; 800A is special rating |
| Siemens | 3VA6880‑6EL32‑0AA0 | In=800A, Icu = 36 kA, 3P., thermomagnetic | 3VA series, performances similaires |
| Mitsubishi | NF800‑CW 3P | In=800A, Icu = 35 kA, thermomagnetic | Japanese standard, suitable for Japanese equipment |
| Delta | PM800H‑3P | In=800A, Icu = 36 kA, thermomagnetic | Cost‑effective industrial MCCB |
- Sélection & Application Notes
- Breaking capacity matching
Ensure short-circuit current ≤ 36kA@400V; otherwise use T6S/T6L.
Icu is only 20kA at 600V – use with caution.
- Release settings
Surcharge (thermal): set to 1.0–1.1 × load rated current
Instantané (magnetic): set to 5–10 × In to avoid nuisance tripping while maintaining selectivity.
- Montage & wiring
Fixé, front connection; allow depth ≥ 103.5mm.
Use copper busbar/cable rated for 800A; ≥240mm² copper recommended.
- Entretien & replacement
Regularly verify release settings.
Inspect contacts after short-circuit tripping; replace if needed.
For upgrades, prefer T6S/T6L or XT6N to keep dimensions compatible.
- Conclusion
ABB T6N800-TM800-40000-8000-F-F-3P is a high-performance 800A MCCB with compact size, adjustable thermomagnetic protection, and standard breaking capacity. It is ideal for high-current three-phase circuits in industrial automation. Selection should consider system short-circuit current, protection requirements, and installation space. For better accuracy and selectivity, use higher-breaking versions or electronic releases.
Schneider Replacement for ABB T6N800-TM800-40000-8000-F-F-3P
Key Summary: The ABB T6N800 is an MCCB; Schneider’s NSX series is the best match. If you require an MT air circuit breaker (PBR), suitable models are also available. Full solutions and technical comparisons below.
- Product Type Comparison
| Taper | ABB | Schneider Corresponding Series | Différence principale |
| MCCB | T6N800 | NSX Series | Compact, 36–150kA, for sub‑circuits |
| PBR | No equivalent in Tmax T6 | MT Series | Larger, 50–200kA, for main incomers |
- Schneider MT ACB Replacement
2.1 Recmmended Model: MT08N1 3P F MIC2.0+LR 800A
Model explanation:
MT08: Frame size 800A
N1: Breaking capacity 50kA@400V (higher than T6N 36kA)
3P.: 3-pôle
F: Fixed mount
MIC2.0+LR: Thermomagnetic protection (Long + Instantané)
800UN: Courant nominal
Parameter matching:
| Article | ABB T6N800 | Schneider MT08N1 | Match Level |
| Courant nominal (Dans) | 800UN | 800UN | Perfect |
| Montage | Fixé | Fixé | Perfect |
| Poteaux | 3P. | 3P. | Perfect |
| Pouvoir de coupure (ICU) | 36kA@400V | 50kA@400V | Higher |
| Release type | Thermomagnetic (TMA) | Thermomagnetic (LR) | Functional match |
| Instantaneous range | 4000–8000A (5–10In) | 5–10In adjustable | Perfect |
Order No: 63006 (MT08N1 3P F MIC2.0 800A)
2.2 Alternatives (Higher Breaking)
MT08N2 3P F MIC2.0+LR 800A: 50kA@400V, wider current range
MT08H1 3P F MIC2.0+LR 800A: 65kA@400V for heavy short-circuit systems
- Better Schneider NSX MCCB Replacement
3.1 Modèle recommandé: NSX800F TMD 800 3P3D F
Model explanation:
NSX800: Frame 800A
F: 36kA@400V (identical to T6N)
TMD: Thermomagnetic release (type de distribution)
800: Rated current 800A
3P3D: 3-pôle
F: Fixé, front connection
Parameter matching:
| Article | ABB T6N800 | Schneider NSX800F | Match Level |
| Taper | MCCB | MCCB | Perfect |
| Dans | 800UN | 800UN | Perfect |
| ICU | 36kA@400V | 36kA@400V | Perfect |
| Montage | Fixé | Fixé | Perfect |
| Connexion | Front | Front | Perfect |
| Poteaux | 3P. | 3P. | Perfect |
| Libérer | TMA | TMD | Perfect |
| Instantané | 5–10In | 5–10In | Perfect |
Order No: C80F3TM800
3.2 Higher-Breaking Alternatives
NSX800N TMD 800 3P3D F: 50kA@400V, order No C80N3TM800
NSX800H TMD 800 3P3D F: 70kA@400V for heavy industry
- Replacement Selection Notes
- Product type choice
For direct replacement of an MCCB, choose NSX for identical form factor.
For upgrading to a main incomer, use MT ACB (note larger dimensions).
- Release settings
Long-delay (Ir): 1.0–1.1 × rated current
Instantané (Ii): 5–10 × In (4000–8000A) to match original ABB behavior.
- Pouvoir de coupure
MT08N1, NSX800N/H exceed 36kA for improved safety.
NSX800F is sufficient if Isc ≤ 36kA.
- Mounting space
MT ACB depth ~300mm (much larger than T6N 103.5mm)
NSX matches T6 dimensions for easy retrofit.
- Résumé
Top Recommendation: Schneider NSX800F TMD 800 3P3D F (order No C80F3TM800).
Perfectly matches the ABB T6N800 in type, actuel, mounting, pouvoir de coupure, and characteristics, with near-identical dimensions for easy replacement.
Alternative: If ACB is required, use MT08N1 3P F MIC2.0+LR 800A (order No 63006), which provides higher breaking capacity but requires more space.
Let me know if you want a simplified 1-page English datasheet version for customers or bidding.
