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1SDA080844R1 ABB XT1N 160 TMD 25-450 4-Pole Circuit Breaker
ABB 1SDA080844R1 XT1N 160 is a 25 A four-pole fixed moulded case circuit breaker with an adjustable TMD thermomagnetic trip unit, 450 A instantaneous protection and 36 kA ultimate breaking capacity at 415 V AC.
£309.70
Why Choose the ABB XT1N 160 TMD 25-450 1SDA080844R1 Circuit Breaker?
The ABB 1SDA080844R1 is a compact four-pole moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT family, designed to provide reliable protection and isolation for low-voltage electrical distribution systems. Built on the XT1N 160 frame, it combines a compact footprint with dependable thermomagnetic protection for industrial, commercial, infrastructure and OEM applications.
This circuit breaker incorporates a TMD thermomagnetic trip unit rated at 25 A. Its thermal protection is adjustable from 17.5 to 25 A, while the instantaneous magnetic short-circuit setting is 450 A. This combination provides overload protection for cables and connected equipment together with rapid operation when a severe short-circuit current occurs.
The 1SDA080844R1 features a four-pole configuration, fixed mounting and front terminals. It supports operational voltages up to 690 V AC and 500 V DC, with an N-class ultimate short-circuit breaking capacity of 36 kA at 415 V AC, making it a versatile protection solution for three-phase four-wire power distribution.
Key Advantages
- Genuine ABB SACE Tmax XT1N moulded case circuit breaker.
- Compact 160 A frame fitted with a 25 A TMD thermomagnetic release.
- Four-pole configuration for three-phase four-wire distribution applications.
- Adjustable thermal setting from 17.5 to 25 A supports accurate overload protection.
- 450 A instantaneous magnetic trip provides rapid short-circuit protection.
- 36 kA ultimate breaking capacity at 415 V AC for dependable fault interruption.
- Fixed installation with front terminals supports straightforward switchboard integration.
- Compact XT1 construction is well suited to panel builders and OEM electrical equipment.
Key Features
- ABB SACE Tmax XT1N 160 frame.
- 25 A rated current.
- TMD thermomagnetic trip unit.
- 17.5–25 A adjustable thermal setting range.
- Thermal overload protection.
- Instantaneous magnetic short-circuit protection.
- 450 A instantaneous magnetic setting.
- Four-pole construction.
- N short-circuit performance level.
- Operational voltage up to 690 V AC and 500 V DC.
- 36 kA ultimate breaking capacity at 415 V AC.
- Fixed circuit breaker configuration with front terminals.
Adjustable Thermomagnetic Protection for Low-Voltage Distribution
Thermomagnetic moulded case circuit breakers combine thermal overload protection with rapid magnetic short-circuit protection. On the ABB 1SDA080844R1, the thermal element can be adjusted between 17.5 and 25 A, allowing the overload characteristic to be matched more closely to the protected circuit, while the 450 A instantaneous magnetic setting responds rapidly to severe short-circuit conditions.
The four-pole design makes this XT1N particularly suitable for three-phase four-wire distribution systems requiring a four-pole protective device. Combined with fixed mounting, front terminals and an ultimate breaking capacity of 36 kA at 415 V AC, the breaker provides a compact and flexible protection solution for switchboard builders, OEMs and industrial or commercial electrical installations.
Typical Applications
- Three-phase four-wire low-voltage distribution systems.
- Industrial electrical switchboards.
- Commercial power distribution panels.
- Machine and equipment power supplies.
- OEM electrical control panels.
- Cable and feeder protection.
- Circuits requiring adjustable thermal overload and instantaneous short-circuit protection.
Technical Specifications
| Series | SACE Tmax XT / T-Max XT 250 Range |
|---|---|
| Frame | XT1N 160 |
| Product designation | XT1N 160 TMD 25-450 4p F F |
| ABB order code | 1SDA080844R1 |
| EAN | 8015644873721 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame rated current (Iu) | 160 A |
| Rated current (In) | 25 A |
| Trip unit | TMD thermomagnetic |
| Thermal setting range | 17.5–25 A |
| Instantaneous short-circuit setting (Ii) | 450 A |
| Number of poles | 4 |
| Short-circuit performance level | N |
| Rated operational voltage | 690 V AC / 500 V DC |
| Rated insulation voltage (Ui) | 800 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Ultimate short-circuit breaking capacity (Icu) | 36 kA at 415 V AC |
| Service short-circuit breaking capacity (Ics) | 36 kA at 415 V AC |
| Selectivity category | A |
| Installation | Fixed |
| Terminal connection | Front |
| Configuration | F F |
| Standard | IEC 60947-2 |
| Product dimensions | 101.6 × 130 × 70 mm (W × H × D) |
| Product net weight | approx. 1.3 kg |
Frequently Asked Questions
What is the ABB 1SDA080844R1 used for?
The ABB 1SDA080844R1 is a four-pole moulded case circuit breaker designed to protect low-voltage electrical distribution circuits against sustained overloads and short circuits using a TMD thermomagnetic trip unit.
What is the rated current of the ABB 1SDA080844R1?
The circuit breaker has a rated current of 25 A and uses the ABB XT1N 160 A frame.
Is the thermal protection adjustable on the ABB 1SDA080844R1?
Yes. The TMD trip unit has an adjustable thermal setting range of 17.5 to 25 A, allowing the overload protection level to be matched to the application.
What is the breaking capacity of the ABB 1SDA080844R1?
The XT1N 160 1SDA080844R1 has an ultimate short-circuit breaking capacity of 36 kA at 415 V AC.
What is the magnetic trip setting of the ABB 1SDA080844R1?
The instantaneous magnetic short-circuit setting is 450 A, providing rapid operation when a severe fault current occurs.
Trusted ABB Protection for Low-Voltage Distribution
ABB SACE Tmax XT moulded case circuit breakers combine compact construction with dependable overload and short-circuit protection, providing panel builders, OEMs and electrical engineers with a versatile platform for industrial and commercial low-voltage distribution systems.
