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1SDA054498R1 ABB T4V250 TMD50-500 4p FFC 1150/1000VAC/DC MCCB
ABB 1SDA054498R1 T4V250 TMD50-500 is a 50 A four-pole fixed SACE Tmax T moulded case circuit breaker with a TMD thermomagnetic release for applications up to 1150 V AC and 1000 V DC.
£1,815.44
Why Choose the ABB T4V250 TMD50-500 4p FFC Circuit Breaker?
The ABB T4V250 TMD50-500 4p FFC, order code 1SDA054498R1, is a high-voltage four-pole moulded case circuit breaker (MCCB) from the ABB SACE Tmax T range, designed for dependable circuit protection in demanding AC and DC electrical distribution systems. Its T4V 250 frame combines a compact fixed-mounted design with a thermomagnetic TMD trip unit for overload and short-circuit protection.
Designed for special high-voltage applications, this circuit breaker is suitable for systems up to 1150 V AC and 1000 V DC. The breaker is supplied in a fixed four-pole configuration with front terminals for copper cables, providing a robust solution for industrial switchboards, power distribution assemblies and specialised electrical installations.
The TMD release has a rated current of 50 A with a 500 A instantaneous short-circuit trip threshold. The T4V performance level provides ultimate short-circuit breaking capacities of 20 kA at 1000 V AC, 12 kA at 1150 V AC and 40 kA at 1000 V DC, making this MCCB particularly suitable where high operating voltage and robust fault protection are required.
Key Advantages
- High-voltage ABB SACE Tmax T moulded case circuit breaker.
- 50 A TMD thermomagnetic trip unit provides overload and short-circuit protection.
- Suitable for systems up to 1150 V AC and 1000 V DC.
- Four-pole configuration for multi-pole circuit isolation and protection.
- High breaking performance for demanding industrial distribution applications.
- Fixed installation with front terminals for copper cables.
Key Features
- ABB SACE Tmax T4V 250 series.
- 50 A rated TMD release current.
- 500 A instantaneous trip threshold.
- Four-pole fixed-mounted construction.
- Rated operational voltage up to 1150 V AC / 1000 V DC.
- Ultimate breaking capacity of 20 kA at 1000 V AC.
- Ultimate breaking capacity of 12 kA at 1150 V AC.
- Ultimate breaking capacity of 40 kA at 1000 V DC.
- Front terminals for copper cables.
- IP20 degree of protection.
Reliable High-Voltage Circuit Protection
Moulded case circuit breakers such as the ABB T4V250 protect electrical installations against excessive current caused by overloads and short circuits. The integrated thermomagnetic release combines thermal overload protection with rapid magnetic operation during high-current faults, helping protect conductors and connected electrical equipment.
The T4V version of the Tmax T platform is engineered for applications requiring operating voltages beyond those of conventional distribution breakers. Its fixed four-pole construction and front copper-cable terminals make it well suited to high-voltage industrial distribution panels and specialised AC or DC power systems.
Typical Applications
- High-voltage industrial power distribution systems.
- AC distribution systems operating up to 1150 V AC.
- DC distribution systems operating up to 1000 V DC.
- Industrial switchboards and electrical panels.
- Renewable-energy and specialised DC installations.
- Machinery and process power distribution systems.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| ABB order code | 1SDA054498R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T4V 250 |
| Number of poles | 4 |
| Installation | Fixed |
| Trip unit | TMD thermomagnetic |
| Rated current | 50 A |
| Instantaneous trip current | 500 A |
| Maximum AC operating voltage | 1150 V AC |
| Maximum DC operating voltage | 1000 V DC |
| Ultimate breaking capacity (Icu) at 1000 V AC | 20 kA |
| Ultimate breaking capacity (Icu) at 1150 V AC | 12 kA |
| Ultimate breaking capacity (Icu) at 1000 V DC | 40 kA |
| Terminal type | Front terminals for copper cables |
| Main circuit connection | Bolt connection |
| Control element | Toggle |
| Protection rating | IP20 |
| Power loss | 3.9 W |
| Weight | approx. 3.5 kg |
| Country of origin | Italy |
| GTIN / EAN | 8015644556006 |
Frequently Asked Questions
What is the ABB 1SDA054498R1?
The ABB 1SDA054498R1 is a T4V250 four-pole fixed moulded case circuit breaker from the SACE Tmax T range, equipped with a 50 A TMD thermomagnetic trip unit.
What voltage can the T4V250 TMD50-500 operate at?
This circuit breaker is designed for applications up to 1150 V AC and 1000 V DC.
What is the rated current of the ABB 1SDA054498R1?
The TMD thermomagnetic release has a rated current of 50 A and an instantaneous short-circuit trip threshold of 500 A.
What is the breaking capacity of this T4V circuit breaker?
Its ultimate short-circuit breaking capacity is 20 kA at 1000 V AC, 12 kA at 1150 V AC and 40 kA at 1000 V DC.
How is the ABB T4V250 TMD50-500 installed?
It is a fixed four-pole circuit breaker equipped with front terminals intended for connection to copper cables.
Trusted ABB Circuit Protection
ABB SACE Tmax moulded case circuit breakers provide robust protection and switching for industrial power distribution, with the T4V range extending dependable circuit protection to specialised high-voltage AC and DC applications.
