Why Choose the ABB XT1B 160 TMD 20-450 4P F F Moulded Case Circuit Breaker?
The ABB 1SDA066811R1 XT1B 160 TMD 20-450 4P F F is a high performance moulded case circuit breaker (MCCB) from the trusted ABB SACE Tmax XT series. Designed for reliable circuit protection in commercial and industrial electrical installations, it provides dependable protection against overloads and short circuits while maintaining continuity of service.
Featuring a thermomagnetic TMD trip unit, this four-pole MCCB combines adjustable thermal overload protection with instantaneous magnetic short circuit protection. Its compact fixed design with front terminals allows straightforward installation within switchboards, distribution panels and industrial control systems.
With a 20 A rated current, a 690 V AC operating voltage and a breaking capacity of up to 18 kA at 415 V AC, the ABB XT1B offers reliable protection for power distribution systems across a wide range of industrial and commercial applications.
Key Advantages
- Compact ABB SACE Tmax XT moulded case circuit breaker.
- 20 A rated current for dependable circuit protection.
- Four-pole design for complete phase and neutral protection.
- Thermomagnetic TMD trip unit for overload and short circuit protection.
- 18 kA breaking capacity at 415 V AC.
- Fixed version with front terminal connections for simple installation.
- Designed in accordance with IEC 60947-2.
- Suitable for industrial, commercial and OEM electrical systems.
Key Features
- ABB SACE Tmax XT series.
- Model: XT1B 160 TMD 20-450 4P F F.
- Product ID: 1SDA066811R1.
- 20 A rated current (In).
- 160 A frame size.
- Four-pole construction.
- Thermomagnetic TMD adjustable trip unit.
- Front terminal configuration.
- Fixed mounting version.
- Suitable for AC and DC applications.
Reliable Protection for Industrial Power Distribution
The ABB XT1B series is engineered to protect electrical installations by disconnecting circuits quickly during overload or short circuit conditions. The thermomagnetic release provides accurate long-term overload protection while reacting rapidly to severe fault currents, helping minimise equipment damage and improve operational safety.
Its compact dimensions, proven reliability and compliance with international standards make the XT1B range an excellent choice for switchboards, distribution panels, machinery and OEM electrical equipment where dependable circuit protection is essential.
Typical Applications
- Industrial power distribution systems.
- Electrical switchboards and panel builders.
- OEM machinery.
- Motor and feeder protection.
- Commercial electrical installations.
- Manufacturing facilities.
- Infrastructure and utility applications.
