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ABB 1SDA054211R1 SACE Tmax T4H 250 three-pole moulded case circuit breaker with 100 A thermal magnetic TMA release for industrial power distribution.
The ABB 1SDA054211R1 is a high-performance Tmax T4H moulded case circuit breaker (MCCB) designed to provide reliable protection against overloads and short circuits in industrial and commercial low voltage electrical systems. Part of the proven ABB SACE Tmax T series, it delivers dependable performance, high breaking capacity and a compact design for demanding power distribution applications.
This model features a 250 A frame size with a 100 A thermal magnetic TMA release. Its fixed three-pole configuration and front terminal connections make it ideal for switchboards, distribution panels, OEM machinery and industrial control systems requiring dependable circuit protection.
Designed to comply with IEC 60947, the ABB Tmax T4H range is widely specified by electrical engineers, panel builders and machine manufacturers for applications where reliability, safety and long service life are essential.
The ABB Tmax T4H range provides dependable protection for low voltage electrical systems by detecting overloads and short circuits before damage can occur. Its high interrupting capacity makes it suitable for demanding industrial environments where equipment protection and operational continuity are critical.
The integrated thermal magnetic TMA trip unit combines accurate overload protection with rapid magnetic tripping during fault conditions, helping protect valuable electrical equipment while reducing downtime and maintenance costs.
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| Current | 100 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 100 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Product ID | 1SDA054211R1 | |
| Extended product type | T4H 250 TMA 100-1000 3P F F | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Frame size | T4H 250 | |
| Rated current (In) | 100 A | |
| Rated uninterrupted current (Iu) | 250 A | |
| Release type | Thermal Magnetic (TMA) | |
| Number of poles | 3 | |
| Rated operational voltage | 690 V AC / 750 V DC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 230 V AC, 70 kA at 415 V AC, 40 kA at 690 V AC | |
| Rated service short-circuit breaking capacity (Ics) | 100 kA at 230 V AC, 70 kA at 415 V AC, 40 kA at 690 V AC | |
| Terminal type | Front terminals | |
| Mounting | Fixed | |
| Electrical durability | 8,000 cycles | |
| Mechanical durability | 20,000 cycles | |
| Dimensions (H × W × D) | 205 × 105 × 103.5 mm | |
| Weight | Approx. 2.35 kg | |
| Standards | IEC 60947 |
It provides overload and short-circuit protection for industrial and commercial low voltage electrical distribution systems.
This model features a 100 A thermal magnetic TMA trip unit within a 250 A Tmax T4H frame.
The ABB 1SDA054211R1 is supplied as a fixed three-pole moulded case circuit breaker.
The breaker is manufactured in accordance with IEC 60947 for low voltage circuit breakers.
It is commonly installed in industrial switchboards, distribution panels, motor control centres and OEM electrical equipment.
ABB SACE Tmax moulded case circuit breakers are trusted worldwide by electrical engineers, panel builders and OEM manufacturers for reliable protection, excellent fault interruption performance and long operational life.
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