Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA054666R1 ABB TMA 160-1600 T4 4-Pole Thermomagnetic Release
ABB 1SDA054666R1 TMA 160-1600 is a 160 A four-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 4-Pole Thermomagnetic Release?
The ABB 1SDA054666R1 is a TMA 160-1600 four-pole thermomagnetic release designed for use with ABB SACE Tmax T4 moulded-case circuit breakers. Part of the ABB SACE Tmax T family, it provides dependable overload and short-circuit protection for industrial and commercial low-voltage electrical distribution systems.
This TMA release combines thermal overload protection with adjustable instantaneous magnetic protection in a self-contained electromechanical trip unit. It has a rated current of 160 A and an adjustable instantaneous magnetic trip threshold (I3) of 800–1600 A, allowing protection to be coordinated with the characteristics of the connected circuit and load.
Designed for four-pole ABB Tmax T4 circuit breakers, the 1SDA054666R1 is suitable for AC/DC circuit protection. This version has the neutral protection rated at 50% of the phase setting, making it suitable for four-wire distribution applications requiring coordinated phase and neutral protection.
Key Advantages
- Reliable thermomagnetic protection for ABB SACE Tmax T4 circuit breakers.
- 160 A rated current for low-voltage power distribution applications.
- Adjustable 800–1600 A instantaneous magnetic trip threshold.
- Four-pole configuration for three-phase systems with neutral.
- Combines thermal overload and magnetic short-circuit protection in one trip unit.
- Suitable for AC and DC circuit protection.
Key Features
- ABB TMA thermomagnetic trip unit.
- 160 A rated current (In).
- 800–1600 A adjustable instantaneous magnetic trip range (I3).
- Designed for ABB SACE Tmax T4 circuit breakers.
- 4-pole configuration.
- Neutral protection: 50% of phase setting.
- Thermal protection against sustained overload conditions.
- Magnetic instantaneous protection against short-circuit currents.
Reliable Thermomagnetic Circuit Protection
Thermomagnetic releases combine two complementary protection principles. The thermal element responds to sustained overload currents that could overheat conductors and connected equipment, while the magnetic element provides rapid tripping when high short-circuit currents exceed the selected instantaneous threshold.
The adjustable 800–1600 A magnetic trip range allows the short-circuit response to be coordinated with the electrical installation. Together with its 160 A rated current and four-pole configuration, the TMA release provides robust protection for ABB Tmax T4 distribution applications.
Typical Applications
- Industrial low-voltage power distribution systems.
- ABB SACE Tmax T4 moulded-case circuit breakers.
- Three-phase and neutral distribution circuits.
- Industrial switchboards and control panels.
- Commercial and infrastructure electrical installations.
- Feeder and equipment overload and short-circuit protection.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| ABB order code | 1SDA054666R1 |
| Product type | Thermomagnetic trip unit / release |
| Release type | TMA |
| Rated current (In) | 160 A |
| Instantaneous magnetic trip range (I3) | 800–1600 A |
| Protection functions | Overload and short-circuit |
| Number of poles | 4 |
| Neutral protection | 50% of phase setting |
| Compatible circuit breaker | ABB SACE Tmax T4 |
| Application | AC/DC circuit protection |
| Standard | IEC |
| Configuration type | Loose or configurable |
| Product net weight | 1 kg |
| EAN | 8015644557713 |
Frequently Asked Questions
What is the ABB 1SDA054666R1?
The ABB 1SDA054666R1 is a TMA 160-1600 four-pole thermomagnetic release designed for compatible ABB SACE Tmax T4 moulded-case circuit breakers.
What is the rated current of the TMA 160-1600 release?
The ABB TMA release has a rated current (In) of 160 A.
What is the magnetic trip range of the ABB 1SDA054666R1?
The instantaneous magnetic protection threshold (I3) is adjustable from 800–1600 A.
What protection does the TMA release provide?
It combines thermal overload protection with adjustable instantaneous magnetic short-circuit protection in a single thermomagnetic trip unit.
Which circuit breaker is the 1SDA054666R1 designed for?
It is designed for compatible four-pole ABB SACE Tmax T4 moulded-case circuit breakers and is suitable for AC/DC circuit protection.
Trusted ABB Circuit Protection Technology
ABB SACE Tmax thermomagnetic releases provide robust overload and short-circuit protection for industrial and commercial low-voltage distribution systems, combining straightforward operation with adjustable protection characteristics.
