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1SDA054657R1 ABB TMA 160-1600 T4 3-Pole Thermomagnetic Release
ABB 1SDA054657R1 TMA 160-1600 is a 160 A three-pole thermomagnetic release with an adjustable 800–1600 A instantaneous magnetic trip range for compatible SACE Tmax T4 circuit breakers.
£2,753.39
Why Choose the ABB TMA 160-1600 T4 3-Pole Thermomagnetic Release?
The ABB 1SDA054657R1 is a TMA 160-1600 three-pole thermomagnetic release designed for use with ABB SACE Tmax T4 moulded-case circuit breakers. Part of the ABB Tmax T4–T8 product family, it provides dependable overload and short-circuit protection for industrial and commercial low-voltage electrical distribution systems.
The TMA release combines thermal overload protection with magnetic short-circuit protection in a compact mechanical trip unit. Its thermal element is rated at 160 A, while the magnetic instantaneous protection provides an adjustable trip threshold of 800–1600 A, allowing protection characteristics to be matched to the requirements of the connected circuit.
Designed for three-pole ABB Tmax T4 circuit breakers and suitable for AC/DC applications, the TMA 160-1600 provides a straightforward protection solution without requiring an electronic trip unit or auxiliary power supply. Its robust thermomagnetic operating principle makes it well suited to distribution boards, machinery and industrial power systems.
Key Advantages
- Reliable thermomagnetic protection for ABB SACE Tmax T4 circuit breakers.
- 160 A rated thermal current for overload protection.
- Adjustable 800–1600 A instantaneous magnetic trip threshold.
- Three-pole configuration for three-phase distribution systems.
- Provides both overload and short-circuit protection in one trip unit.
- Suitable for AC and DC applications within the ratings of the associated breaker.
Key Features
- ABB TMA thermomagnetic release.
- 160 A rated current.
- 800–1600 A adjustable magnetic trip range.
- Designed for ABB SACE Tmax T4 circuit breakers.
- 3-pole configuration.
- Thermal protection against sustained overload conditions.
- Magnetic instantaneous protection against short circuits.
- Mechanical thermomagnetic operation without an electronic protection unit.
Reliable Thermomagnetic Circuit Protection
Thermomagnetic releases combine two complementary protection mechanisms. The thermal element responds to sustained overcurrent conditions to protect conductors and equipment against overloads, while the magnetic element responds rapidly to high fault currents caused by short circuits.
The adjustable instantaneous magnetic threshold of the ABB TMA 160-1600 allows the short-circuit trip level to be selected within its specified range. This provides greater flexibility when coordinating the Tmax T4 circuit breaker with downstream loads and the characteristics of the protected electrical installation.
Typical Applications
- Industrial low-voltage power distribution systems.
- ABB SACE Tmax T4 moulded-case circuit breakers.
- Three-phase distribution boards and switchboards.
- Industrial machinery and control panels.
- Commercial and infrastructure electrical installations.
- Feeder and equipment overload and short-circuit protection.
Technical Specifications
| Product family | SACE Tmax T4–T8 |
|---|---|
| ABB order code | 1SDA054657R1 |
| Product type | Thermomagnetic trip unit / release |
| Trip unit type | TMA |
| Rated current | 160 A |
| Instantaneous magnetic trip range (I3) | 800–1600 A |
| Protection functions | Overload and short-circuit |
| Number of poles | 3 |
| Compatible circuit breaker | ABB SACE Tmax T4 |
| Application | AC/DC circuit protection |
| EAN | 8015644557621 |
Frequently Asked Questions
What is the ABB 1SDA054657R1?
The ABB 1SDA054657R1 is a TMA 160-1600 three-pole thermomagnetic release designed for compatible ABB SACE Tmax T4 moulded-case circuit breakers.
What is the rated current of the TMA 160-1600?
The thermomagnetic release has a rated thermal current of 160 A.
What is the magnetic trip range of the ABB 1SDA054657R1?
The instantaneous magnetic protection threshold (I3) is adjustable from 800 to 1600 A.
What protection does the TMA release provide?
It combines thermal overload protection with magnetic instantaneous short-circuit protection, providing two essential protection functions in a single mechanical trip unit.
Which circuit breaker is the 1SDA054657R1 designed for?
It is designed for compatible three-pole ABB SACE Tmax T4 moulded-case circuit breakers.
Trusted ABB Circuit Protection Technology
ABB SACE Tmax thermomagnetic releases provide robust overload and short-circuit protection for industrial and commercial electrical distribution systems, combining straightforward operation with dependable circuit protection.
