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1SDA080851R1 ABB XT1H 160 TMF 20-450 4P F F Circuit Breaker
ABB 1SDA080851R1 is a 20 A four-pole SACE Tmax XT1H 160 moulded case circuit breaker with TMF fixed thermomagnetic protection, fixed mounting, front terminals and a 70 kA ultimate short-circuit breaking capacity at 400 V AC.
£373.34
Why Choose the ABB XT1H 160 TMF 20-450 4P Circuit Breaker?
The ABB XT1H 160 TMF 20-450 4P F F, order code 1SDA080851R1, is a four-pole moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT range. Built on the compact XT1 160 A frame, it combines high short-circuit performance with thermomagnetic protection for low-voltage electrical distribution applications.
This XT1H circuit breaker has a 20 A rated current and incorporates an ABB TMF thermomagnetic trip unit. The TMF release provides thermal overload and magnetic short-circuit protection with fixed settings, while the product designation specifies a 20–450 A protection range.
The 1SDA080851R1 is supplied as a fixed four-pole circuit breaker with front terminals and has a rated operational voltage of up to 690 V. Its XT1H high-breaking-capacity construction makes it suitable for industrial switchboards, commercial distribution systems, machinery panels and other installations requiring dependable four-pole circuit protection.
Key Advantages
- 20 A four-pole MCCB for low-voltage circuit protection.
- Compact ABB SACE Tmax XT1 160 A frame.
- H breaking-capacity class for demanding fault-current conditions.
- TMF thermomagnetic trip unit provides overload and short-circuit protection.
- 70 kA ultimate short-circuit breaking capacity at 400 V AC.
- Four-pole configuration for applications requiring switching and protection across four conductors.
- Fixed installation with front terminals for straightforward panel integration.
- Rated operational voltage up to 690 V.
Key Features
- ABB SACE Tmax XT series.
- XT1 frame.
- 160 A frame rating.
- H interruption rating.
- 20 A rated current.
- TMF thermomagnetic release.
- 20–450 A product protection range.
- Four-pole configuration.
- Fixed mounting.
- Front terminals.
- Rated voltage up to 690 V.
- IEC-certified circuit breaker configuration.
Dependable Four-Pole Thermomagnetic Circuit Protection
The ABB TMF release combines thermal overload protection and magnetic short-circuit protection using fixed trip settings. The thermal element responds to sustained overcurrents that could overheat cables or connected equipment, while the magnetic element provides rapid interruption when a high short-circuit current occurs.
Combined with the XT1H high-breaking-capacity frame, the 1SDA080851R1 provides a compact protection solution for circuits where dependable fault interruption is required. Its four-pole construction, fixed installation and front terminals also support practical integration into compatible low-voltage switchboards and distribution assemblies.
Typical Applications
- Industrial low-voltage distribution boards.
- Commercial electrical distribution systems.
- Four-pole feeder and cable protection.
- Electrical switchboards and panel assemblies.
- Industrial machinery power circuits.
- Transformer, generator and installation protection.
- Building power-distribution systems.
- OEM electrical equipment and control panels.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product family | T-Max XT 250 Range |
| ABB order code | 1SDA080851R1 |
| Alternate catalogue number | XT1HE4020AFF000XXX |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | XT1 |
| Frame rating | 160 A |
| Breaking-capacity class | H |
| Rated current | 20 A |
| Trip unit | TMF thermomagnetic |
| Protection functions | Thermal overload and magnetic short circuit |
| Trip settings | Fixed thermal and fixed magnetic |
| Product protection range | 20–450 A |
| Number of poles | 4 |
| Installation | Fixed |
| Terminal configuration | Front terminals |
| Rated voltage | 690 V |
| Ultimate short-circuit breaking capacity at 400 V AC | 70 kA |
| Standards | IEC |
| EAN/UPC | 8015644873790 |
Frequently Asked Questions
What is the ABB 1SDA080851R1?
The ABB 1SDA080851R1 is an XT1H 160 four-pole moulded case circuit breaker with a 20 A rated current, TMF thermomagnetic protection, fixed mounting and front terminals.
What is the rated current of the ABB XT1H 1SDA080851R1?
The circuit breaker has a rated current of 20 A and is built on the ABB SACE Tmax XT1 160 A frame.
What protection does the TMF trip unit provide?
The TMF thermomagnetic trip unit provides fixed thermal overload protection and fixed magnetic short-circuit protection.
What is the breaking capacity of the ABB XT1H 1SDA080851R1?
The XT1H version has an ultimate short-circuit breaking capacity of 70 kA at 400 V AC, providing high fault-current interruption capability for compatible installations.
How is the ABB 1SDA080851R1 installed?
The 1SDA080851R1 is supplied as a fixed four-pole circuit breaker with front terminals for integration into compatible switchboards, distribution panels and electrical assemblies.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax XT moulded case circuit breakers combine compact construction, dependable circuit protection and high short-circuit performance for industrial and commercial low-voltage distribution systems.
