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1SDA054663R1 ABB TMA 80-800 T4 4P Thermomagnetic Trip Unit
ABB 1SDA054663R1 is an 80 A four-pole TMA thermomagnetic trip unit for SACE Tmax T4 circuit breakers with thermal overload protection and adjustable 400–800 A instantaneous magnetic short-circuit protection.
£834.23
Why Choose the ABB 1SDA054663R1 TMA 80-800 T4 4P Thermomagnetic Trip Unit?
The ABB 1SDA054663R1 is a TMA 80-800 thermomagnetic trip unit designed for four-pole ABB SACE Tmax T4 moulded-case circuit breakers. With a rated current of 80 A and an adjustable instantaneous magnetic trip range of 400–800 A, it provides reliable overload and short-circuit protection for low-voltage electrical distribution systems.
As part of the ABB SACE Tmax T4 protection range, the TMA release combines thermal overload protection with adjustable magnetic short-circuit protection. This thermomagnetic operating principle provides dependable circuit protection without requiring electronic trip-unit programming or an auxiliary power supply for its fundamental protection functions.
The four-pole configuration makes the TMA 80-800 suitable for compatible Tmax T4 applications requiring switching and protection across four conductors. Designed for AC and DC applications, it provides a robust protection solution for industrial switchboards, distribution panels and machinery electrical systems.
Key Advantages
- Purpose-designed thermomagnetic trip unit for ABB SACE Tmax T4 circuit breakers.
- 80 A rated current for compatible low-voltage distribution circuits.
- Adjustable 400–800 A instantaneous magnetic trip range.
- Combines thermal overload and magnetic short-circuit protection.
- Four-pole configuration for compatible four-pole Tmax T4 installations.
- Suitable for compatible AC and DC circuit protection applications.
Key Features
- ABB TMA 80-800 thermomagnetic trip unit.
- Designed for ABB SACE Tmax T4 moulded-case circuit breakers.
- 80 A rated current (In).
- Adjustable 400–800 A instantaneous magnetic trip current (I3).
- Four-pole (4P) configuration.
- Thermal protection against sustained overload conditions.
- Adjustable magnetic protection against short-circuit currents.
- Electromechanical protection principle for straightforward operation.
Reliable Adjustable Thermomagnetic Circuit Protection
Thermomagnetic trip units combine two complementary protection principles. The thermal element responds to sustained overload currents that could cause excessive heating of conductors and connected equipment, while the magnetic element reacts rapidly to high fault currents and initiates opening of the associated circuit breaker.
The ABB TMA 80-800 adds an adjustable instantaneous magnetic threshold of 400–800 A, allowing short-circuit protection to be matched more closely to the requirements of the installation. Its robust electromechanical design makes it a practical protection solution for compatible ABB Tmax T4 power distribution applications.
Typical Applications
- ABB SACE Tmax T4 moulded-case circuit breaker installations.
- Industrial low-voltage distribution boards.
- Commercial electrical distribution systems.
- Four-pole feeder and branch-circuit protection.
- Machinery and industrial control panels.
- Compatible AC and DC electrical protection applications.
Technical Specifications
| Series | SACE Tmax T4 |
|---|---|
| ABB order code | 1SDA054663R1 |
| Product type | Thermomagnetic trip unit / release |
| Trip unit type | TMA |
| Suitable for | ABB SACE Tmax T4 moulded-case circuit breaker |
| Rated current (In) | 80 A |
| Instantaneous magnetic trip current (I3) | 400–800 A adjustable |
| Number of poles | 4 |
| Protection principle | Thermal and magnetic |
| Overload protection | Thermal |
| Short-circuit protection | Adjustable magnetic instantaneous |
| Application | AC / DC circuit protection |
| Standard | IEC |
| Configuration type | Loose or configurable |
| Product net weight | 1 kg |
| EAN | 8015644557683 |
Frequently Asked Questions
What is the ABB 1SDA054663R1?
The ABB 1SDA054663R1 is a TMA 80-800 four-pole thermomagnetic trip unit designed for compatible ABB SACE Tmax T4 moulded-case circuit breakers.
What is the rated current of the ABB TMA 80-800?
The trip unit has a rated current (In) of 80 A.
What is the magnetic trip range of the TMA 80-800?
The instantaneous magnetic trip current (I3) is adjustable from 400–800 A, allowing the short-circuit protection threshold to be matched to the application.
What protection does the ABB TMA 80-800 provide?
It combines thermal overload protection with adjustable instantaneous magnetic short-circuit protection for compatible Tmax T4 circuit breaker installations.
How many poles does the ABB 1SDA054663R1 have?
The 1SDA054663R1 is a four-pole (4P) thermomagnetic trip unit.
Which ABB circuit breaker family is this trip unit designed for?
The TMA 80-800 trip unit is designed for compatible ABB SACE Tmax T4 moulded-case circuit breakers.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax circuit protection products are widely used in industrial and commercial electrical distribution systems where dependable overload and short-circuit protection is required.
