ABBTMAX XT
ABB catalog image for this SKU; may represent the product family.
MOLDED CASE CIRCUIT BREAKER
XT5N 400 TMA 400-4000 4p F F InN=100%In
SKU 1SDA100385R1A 4-pole, fixed-mounted ABB SACE Tmax XT circuit breaker with front terminals and thermal-magnetic TMA protection. Includes a fully rated neutral (100% of phase current).
400 ARated current
4PPoles
36 kAIcu at 415 V AC
PRODUCT DATA
Technical specifications
Source: ABB product catalog.
Verified September 05, 2026.
| Rated Current (In) | 400 A |
|---|---|
| Number of Poles | 4P |
| Release | TMA |
| Current Type | AC/DC |
| Rated Operational Voltage | 690 V AC / 750 V DC |
| Rated Insulation Voltage (Ui) | 1000 V |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV |
| Setting Range | 280…400 A |
| Rated Instantaneous Short-Circuit Current Setting (Ii) | 2000…4000 A |
| Terminal Connection Type | Front |
| Standards | IEC60947-2 |
| Product Net Width | 186 mm |
| Product Net Height | 205 mm |
| Product Net Depth / Length | 103.5 mm |
| Product Net Weight | 5.6 kg |
| Icu at 415 V AC | 36 kA |
| Mounting | Fixed |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official ABB reference ↗.