ABB XT3N 250 3 pole Normal MCCB Fixed Thermal/Adjustable Magnetic Release In=250A Ii=2500A

Why Choose the ABB 1SDA068059R1 Tmax XT3N 250 Circuit Breaker?

The ABB 1SDA068059R1 is a robust Tmax XT3N 250 moulded case circuit breaker designed for dependable protection of industrial and commercial low-voltage electrical distribution systems. As part of the ABB SACE Tmax XT circuit breaker range, it provides reliable overload and short-circuit protection in a compact three-pole fixed configuration.

This circuit breaker is fitted with a TMD thermomagnetic release, offering thermal overload protection and magnetic short-circuit protection for AC and DC applications. Its adjustable current setting range makes it suitable for switchboards, machinery panels, distribution boards and equipment feeders where reliable circuit protection is required.

With a rated current of 250 A, an instantaneous short-circuit setting of 2500 A and a breaking capacity of 36 kA at 415 V AC, the ABB 1SDA068059R1 is ideal for demanding low-voltage installations. The three-pole fixed design with front terminals supports straightforward installation inside electrical panels and distribution assemblies.

Key Advantages

• Reliable ABB Tmax XT3N moulded case circuit breaker.
• 250 A rated current for industrial and commercial electrical protection.
• 36 kA breaking capacity at 415 V AC.
• TMD thermomagnetic release for overload and short-circuit protection.
• Three-pole fixed configuration with front terminals.
• Compact construction suitable for switchboards, control panels and distribution systems.

Key Features

• ABB SACE Tmax XT series.
• XT3N 250 frame size.
• 250 A rated current.
• Three-pole moulded case circuit breaker.
• TMD thermomagnetic release.
• Thermal and magnetic protection functions.
• Fixed mounting design with front terminals.
• Suitable for AC and DC low-voltage distribution applications.

Technical Specifications

• Manufacturer: ABB
• Series: SACE Tmax XT
• Model: XT3N 250 TMD 250-2500 3p F F
• Product ID: 1SDA068059R1
• Product type: Moulded case circuit breaker
• Rated current: 250 A
• Frame size: XT3N 250
• Number of poles: 3-pole
• Trip unit: TMD thermomagnetic release
• Instantaneous short-circuit setting: 2500 A
• Breaking capacity: 36 kA at 415 V AC
• Rated operational voltage: 690 V AC / 500 V DC
• Rated insulation voltage: 800 V
• Rated impulse withstand voltage: 8 kV
• Frequency: 50 / 60 Hz
• Mounting type: Fixed
• Terminal connection: Front terminals
• EAN: 8015644019303
• Dimensions (H × W × D): approx. 150 × 105 × 70 mm
• Weight: approx. 1.7 kg

Reliable Protection for Low-Voltage Electrical Systems

Moulded case circuit breakers such as the ABB Tmax XT3N are used to protect low-voltage electrical circuits against overloads and short circuits. By disconnecting the circuit during fault conditions, they help prevent cable overheating, equipment damage and disruption to connected systems.

The ABB 1SDA068059R1 combines compact construction with thermomagnetic protection, making it suitable for panel builders, electrical contractors and industrial engineers. Its fixed three-pole arrangement is ideal for three-phase distribution systems requiring dependable protection in a space-efficient format.

Typical Applications

• Industrial low-voltage distribution boards.
• Commercial switchboards and panelboards.
• Machinery and automation control panels.
• Three-phase circuit protection applications.
• Motor feeder and equipment protection.
• OEM electrical assemblies and switchgear systems.

Trusted by Electrical Engineers Worldwide

ABB Tmax XT moulded case circuit breakers are widely used by panel builders, electrical contractors and industrial engineers for reliable low-voltage protection in demanding electrical installations.