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ABB MCCB 1sda054191r1-t4s 250 tmd 50-500 3 pole
ABB 1SDA054191R1 Tmax T4S 250 A three-pole moulded case circuit breaker with TMD thermomagnetic release adjustable from 50-500 A, fixed mounting and front terminals.
Why Choose the ABB 1SDA054191R1 Tmax T4S Moulded Case Circuit Breaker?
The ABB 1SDA054191R1 is a high-performance Tmax T4S moulded case circuit breaker (MCCB) engineered for dependable protection of industrial and commercial low-voltage electrical distribution systems. Featuring a 250 A frame size, 3-pole configuration and a TMD thermomagnetic release adjustable from 50-500 A, it delivers reliable overload and short-circuit protection across a wide range of power distribution applications.
As part of the proven ABB SACE Tmax T series, this fixed MCCB combines compact dimensions with excellent electrical performance. Its front terminal connections simplify installation into switchboards, control panels and industrial distribution assemblies while maintaining ABB's renowned reliability.
Designed for operation up to 690 V AC, the ABB 1SDA054191R1 provides high interrupting capacity and dependable circuit protection. The adjustable thermomagnetic release enables accurate overload and magnetic short-circuit protection, helping protect valuable electrical equipment while reducing downtime.
Key Advantages
- Reliable ABB Tmax T4S moulded case circuit breaker.
- 250 A frame size for industrial power distribution.
- 3-pole fixed MCCB with front terminal connections.
- TMD thermomagnetic release adjustable from 50-500 A.
- Provides dependable overload and short-circuit protection.
- Compact Tmax T4 design for straightforward panel installation.
Key Features
- ABB SACE Tmax T4S series.
- 250 A rated uninterrupted current (Iu).
- 3-pole moulded case circuit breaker.
- TMD thermomagnetic release.
- Release adjustment range of 50-500 A.
- Fixed mounting version with front terminals.
- Rated operational voltage up to 690 V AC / 750 V DC.
- Designed for industrial and commercial low-voltage distribution.
Reliable Protection for Low-Voltage Distribution
The ABB Tmax T4S range is engineered to protect electrical distribution systems from overloads and short-circuit faults. By interrupting abnormal current conditions quickly and safely, these moulded case circuit breakers help protect switchgear, cabling and connected equipment while improving system reliability.
The ABB 1SDA054191R1 is ideal for panel builders, OEMs and electrical contractors requiring a compact three-pole MCCB with adjustable thermomagnetic protection and high breaking performance for demanding industrial installations.
Typical Applications
- Industrial power distribution boards.
- Main and sub-distribution switchboards.
- Motor control centres.
- Commercial electrical installations.
- Manufacturing facilities.
- Infrastructure and utility distribution systems.
Technical Specifications
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| Current | 50 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 85 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T4S 250 TMD 50-500 3p F F | |
| Product ID | 1SDA054191R1 | |
| EAN | 8015644552916 | |
| Product type | Moulded Case Circuit Breaker (MCCB) | |
| Rated uninterrupted current (Iu) | 250 A | |
| Rated current setting | 50 A | |
| Release adjustment range | 50-500 A | |
| Number of poles | 3P | |
| Release type | Thermomagnetic | |
| Trip unit | TMD | |
| Rated operational voltage | 690 V AC / 750 V DC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated service short-circuit breaking capacity (Ics) | Up to 85 kA at 220-230 V AC, 25 kA at 690 V AC | |
| Rated ultimate short-circuit breaking capacity (Icu) | Up to 85 kA at 220-230 V AC, 25 kA at 690 V AC | |
| Terminal connection | Front terminals | |
| Mounting type | Fixed | |
| Standards | IEC 60947 | |
| Dimensions (H × W × D) | 205 × 105 × 103.5 mm | |
| Weight | Approx. 2.35 kg |
Frequently Asked Questions
What is the ABB 1SDA054191R1 used for?
The ABB 1SDA054191R1 protects industrial and commercial electrical distribution systems against overloads and short-circuit faults.
What frame size does this MCCB have?
This circuit breaker has a 250 A frame size.
How many poles does the ABB 1SDA054191R1 have?
The breaker features a 3-pole configuration for three-phase electrical distribution systems.
Which trip unit is fitted?
The breaker is fitted with a TMD thermomagnetic release adjustable from 50-500 A.
Where is this circuit breaker typically installed?
It is commonly installed in switchboards, distribution panels, motor control centres and industrial electrical installations.
Trusted by Industry Worldwide
ABB Tmax moulded case circuit breakers are trusted worldwide for delivering reliable low-voltage circuit protection, high interrupting performance and long service life across industrial and commercial applications.
