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ABB MCCB 1sda054212r1-t4h 250 tma 125-1250 3 pole
ABB 1SDA054212R1 SACE Tmax T4H 250 three-pole moulded case circuit breaker with 125 A thermal magnetic TMA release for industrial power distribution.
Why Choose the ABB 1SDA054212R1 Tmax T4H Moulded Case Circuit Breaker?
The ABB 1SDA054212R1 is a premium Tmax T4H moulded case circuit breaker (MCCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial low voltage power distribution systems. As part of the renowned ABB SACE Tmax T series, it combines excellent interrupting performance with compact dimensions, making it ideal for modern switchboards and electrical distribution equipment.
This model features a 250 A frame size with a 125 A thermal magnetic TMA release, offering accurate overload protection together with rapid magnetic tripping under fault conditions. Its fixed three-pole construction and front terminal connections provide straightforward installation for panel builders, OEMs and industrial electrical contractors.
Designed to meet IEC 60947 standards, the ABB Tmax T4H range is trusted worldwide for its long service life, reliable performance and high short-circuit breaking capacity in demanding industrial environments.
Key Advantages
- Reliable ABB SACE Tmax T4H moulded case circuit breaker.
- 125 A thermal magnetic TMA trip unit within a 250 A frame.
- Three-pole fixed configuration for industrial applications.
- High short-circuit breaking capacity up to 100 kA.
- Compact panel-mounted design with front terminals.
- Dependable overload and short-circuit protection.
Key Features
- Manufacturer: ABB.
- Series: SACE Tmax T.
- Model: T4H 250 TMA 125-1250 3P F F.
- Product ID: 1SDA054212R1.
- 125 A rated current.
- 250 A frame size.
- Thermal magnetic TMA release.
- Fixed three-pole construction.
- Front terminal connections.
- Rated operational voltage up to 690 V AC.
Reliable Protection for Industrial Power Distribution
The ABB Tmax T4H series is engineered to protect low voltage electrical installations by rapidly disconnecting overload and short-circuit faults before they can damage cables, equipment or machinery. Its high interrupting capacity makes it suitable for demanding industrial power distribution systems.
The integrated thermal magnetic TMA release combines dependable overload protection with fast fault interruption, helping maintain system safety while reducing downtime and maintenance costs across industrial applications.
Typical Applications
- Industrial switchboards.
- Electrical distribution panels.
- Motor control centres.
- OEM machinery and equipment.
- Commercial electrical installations.
- Manufacturing and process industries.
Technical Specifications
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| Current | 125 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 | 1SDA054212R1 | |
| Extended product type | T4H 250 TMA 125-1250 3P F F | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Frame size | T4H 250 | |
| Rated current (In) | 125 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 |
Frequently Asked Questions
What is the ABB 1SDA054212R1 used for?
It provides overload and short-circuit protection for industrial and commercial low voltage electrical distribution systems.
What current rating does this circuit breaker provide?
The breaker features a 125 A thermal magnetic TMA trip unit within a 250 A Tmax T4H frame.
How many poles does the ABB 1SDA054212R1 have?
This model is supplied as a fixed three-pole moulded case circuit breaker.
What standards does this breaker comply with?
The ABB 1SDA054212R1 is manufactured in accordance with IEC 60947 for low voltage circuit breakers.
Where is this MCCB typically installed?
It is commonly installed in industrial switchboards, distribution panels, motor control centres and OEM electrical equipment.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted worldwide by electrical engineers, OEM manufacturers and panel builders for dependable protection, high fault interruption performance and long-term operational reliability.
