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.
1SDA054682R1 ABB MA 80-1120 T4 4-Pole Magnetic Release
ABB 1SDA054682R1 MA 80-1120 is an 80 A four-pole magnetic-only trip unit with an adjustable 480–1120 A instantaneous short-circuit trip range for compatible SACE Tmax T4 circuit breakers.
£329.15
Why Choose the ABB MA 80-1120 T4 4-Pole Magnetic Release?
The ABB 1SDA054682R1 is an MA 80-1120 four-pole magnetic release designed for use with ABB SACE Tmax T4 moulded-case circuit breakers. Part of the ABB SACE Tmax T family, this magnetic-only trip unit provides fast instantaneous short-circuit protection for industrial motor circuits and other applications where overload protection is provided separately.
The MA release uses an adjustable magnetic trip mechanism to respond rapidly to high fault currents. This version has a rated current of 80 A and an adjustable instantaneous magnetic trip threshold (I3) of 480–1120 A, allowing the protection setting to accommodate normal starting currents while providing rapid operation under short-circuit conditions.
Designed for four-pole ABB Tmax T4 circuit breakers, the MA 80-1120 is suitable for AC/DC applications. Its magnetic-only operating principle makes it particularly useful in coordinated motor protection systems where a separate overload relay or other device provides thermal overload protection.
Key Advantages
- Dedicated instantaneous magnetic short-circuit protection.
- 80 A rated current for compatible Tmax T4 applications.
- Adjustable 480–1120 A instantaneous magnetic trip threshold.
- Four-pole configuration for applications requiring four switched poles.
- Well suited to motor circuits with separate overload protection.
- Designed specifically for ABB SACE Tmax T4 moulded-case circuit breakers.
Key Features
- ABB MA magnetic-only trip unit.
- 80 A rated current (In).
- 480–1120 A adjustable instantaneous magnetic trip range (I3).
- Designed for ABB SACE Tmax T4 circuit breakers.
- 4-pole configuration.
- Magnetic protection against high short-circuit currents.
- Suitable for AC/DC applications.
- Supports coordinated protection with a separate overload device.
Fast Magnetic Protection for Motor Circuits
Magnetic-only releases are designed to operate rapidly when current reaches a level associated with a short circuit. Unlike thermomagnetic releases, the MA trip unit does not provide thermal overload protection, allowing it to be coordinated with a dedicated overload relay or other motor protection device.
The adjustable 480–1120 A instantaneous trip range allows the ABB MA 80-1120 to accommodate the high inrush currents associated with motor starting while maintaining rapid protection against damaging short-circuit faults. Its four-pole configuration extends this protection architecture to installations requiring four-pole switching.
Typical Applications
- Industrial motor feeders and motor control systems.
- ABB SACE Tmax T4 moulded-case circuit breakers.
- Four-pole industrial electrical circuits.
- Motor control centres and electrical switchboards.
- Industrial machinery with separate overload protection.
- Applications requiring instantaneous short-circuit protection.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| ABB order code | 1SDA054682R1 |
| Product type | Magnetic-only trip unit / release |
| Release type | MA |
| Rated current (In) | 80 A |
| Instantaneous magnetic trip range (I3) | 480–1120 A |
| Protection function | Instantaneous short-circuit protection |
| Number of poles | 4 |
| Compatible circuit breaker | ABB SACE Tmax T4 |
| Application | AC/DC circuit protection |
| Configuration type | Loose or configurable |
| Product net weight | 1 kg |
| EAN | 8015644557966 |
Frequently Asked Questions
What is the ABB 1SDA054682R1?
The ABB 1SDA054682R1 is an MA 80-1120 four-pole magnetic-only trip unit designed for compatible ABB SACE Tmax T4 moulded-case circuit breakers.
What is the rated current of the ABB MA 80-1120?
The MA 80-1120 magnetic release has a rated current of 80 A.
What is the magnetic trip range of the ABB 1SDA054682R1?
The instantaneous magnetic trip threshold (I3) is adjustable from 480–1120 A.
Does the MA 80-1120 provide overload protection?
No. The MA is a magnetic-only trip unit designed for instantaneous short-circuit protection, so thermal overload protection is normally provided by a separate coordinated device.
Which circuit breaker is the 1SDA054682R1 designed for?
It is designed for compatible four-pole ABB SACE Tmax T4 moulded-case circuit breakers and is suitable for AC/DC applications.
Trusted ABB Circuit Protection Technology
ABB SACE Tmax MA magnetic releases provide fast and dependable short-circuit protection for motor feeders and industrial circuits, supporting coordinated protection with dedicated overload devices.
