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ABB MCCB 1sda054173r1-t4n 250 tmd 50-500 3 pole
ABB T4N 250 moulded case circuit breaker with TMD thermomagnetic trip unit, 50-500 A adjustable release, three-pole fixed configuration and front terminals for low voltage power distribution.
Why Choose the ABB 1SDA054173R1 Tmax T4N 250 MCCB?
The ABB 1SDA054173R1 is a robust Tmax T4N moulded case circuit breaker (MCCB) designed to provide reliable protection for low voltage power distribution systems. Part of the proven ABB SACE Tmax T series, this fixed three-pole breaker delivers dependable overload and short-circuit protection for industrial, commercial and OEM electrical installations.
Fitted with a TMD thermomagnetic trip unit, the breaker combines thermal overload protection with magnetic short-circuit protection in a compact, durable design. The adjustable 50–500 A trip setting offers installation flexibility while maintaining excellent protection for feeders, machinery and distribution circuits.
Featuring a T4N 250 frame, three-pole fixed configuration and front terminal connections, the ABB 1SDA054173R1 is ideal for switchboards, motor control centres, OEM machinery and commercial power distribution systems requiring dependable circuit protection.
Key Advantages
- Reliable ABB Tmax T4N moulded case circuit breaker.
- TMD thermomagnetic release providing overload and short-circuit protection.
- 50–500 A adjustable protection range for flexible application design.
- Three-pole fixed configuration with front terminals.
- Suitable for industrial, commercial and OEM electrical systems.
- Designed for dependable low voltage power distribution.
Key Features
- ABB SACE Tmax T series.
- T4N 250 MCCB frame.
- 3-pole fixed circuit breaker.
- TMD thermomagnetic trip unit.
- 50–500 A adjustable release range.
- Front terminal connections.
- Rated operational voltage up to 690 V AC.
- Designed for low voltage circuit protection.
Reliable Thermomagnetic Circuit Protection
The ABB Tmax T4N range is engineered to protect low voltage electrical systems against overloads and short circuits. The TMD thermomagnetic release combines thermal and magnetic protection technologies to provide dependable operation across a wide variety of industrial and commercial applications.
Its compact design, proven ABB reliability and high interrupting performance make the 1SDA054173R1 an excellent choice for protecting feeders, machinery, switchboards and distribution equipment.
Typical Applications
- Industrial switchboards.
- Commercial electrical distribution.
- Motor control centres.
- Transformer and feeder protection.
- Generator installations.
- OEM machinery panels.
- Infrastructure and utilities.
Technical Specifications
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| Current | 50 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 36 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T4N 250 | |
| Part number | 1SDA054173R1 | |
| Product type | Moulded case circuit breaker (MCCB) | |
| Rated current | 50 A | |
| Adjustable trip setting | 50–500 A | |
| Frame size | 250 A | |
| Rated operational voltage | 690 V AC | |
| Number of poles | 3 | |
| Mounting type | Fixed | |
| Terminal type | Front terminals | |
| Trip unit | TMD thermomagnetic release | |
| Breaking capacity | 36 kA at 415 V AC | |
| Dimensions (H × W × D) | approx. 205 × 105 × 103.5 mm | |
| EAN | 8015644552732 |
Frequently Asked Questions
What is the ABB 1SDA054173R1 used for?
It is used to protect low voltage electrical systems against overloads and short circuits in industrial, commercial and OEM applications.
What trip unit is fitted?
The breaker is fitted with a TMD thermomagnetic trip unit.
What is the adjustable protection range?
This model features an adjustable 50–500 A thermomagnetic release.
How many poles does this MCCB have?
The ABB 1SDA054173R1 is supplied in a 3-pole fixed configuration.
Where is this breaker typically installed?
It is commonly installed in switchboards, motor control centres and industrial power distribution panels.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers worldwide for dependable low voltage protection, excellent reliability and long operational life.
