1SDX248669R1 ABB EPX-XT1S-TM1604 160A 4-Pole 50kA TMA MCCB

Why Choose the ABB EPX-XT1S-TM1604 160A 4-Pole MCCB?

The ABB EPX-XT1S-TM1604 is a 160 A four-pole moulded case circuit breaker (MCCB) featuring a 50 kA breaking capacity and thermal-magnetic adjustable (TMA) protection. Incorporating the ABB SACE Tmax XT1S circuit breaker designation, this device belongs to the ABB Protecta Power Devices range for low-voltage electrical distribution applications.

Designed to protect electrical circuits against overload and short-circuit conditions, the EPX-XT1S-TM1604 combines thermal overload protection with magnetic short-circuit protection. Its four-pole configuration supports suitable three-phase distribution arrangements requiring four-pole switching.

With a 160 A rated current, 50 kA specified breaking capacity and TMA trip protection, this MCCB provides a circuit protection solution for compatible ABB Protecta Power distribution assemblies. The exact configuration is identified by ABB order code 1SDX248669R1.

Key Advantages

• 160 A rated current for suitable low-voltage electrical distribution circuits.
• Four-pole (4P) configuration for appropriate three-phase and neutral switching arrangements.
• 50 kA specified breaking capacity for installations with appropriately assessed short-circuit fault levels.
• Thermal-magnetic adjustable (TMA) protection against overload and short-circuit conditions.
• Incorporates the ABB SACE Tmax XT1S circuit breaker platform.
• Supports protective switching and circuit isolation procedures within correctly designed installations.
• Designed for compatible ABB Protecta Power distribution assemblies.
• Suitable for commercial and industrial low-voltage distribution applications.

Key Features

• ABB Protecta Power Devices product range.
• SACE Tmax XT1S moulded case circuit breaker designation.
• 160 A rated current.
• Four-pole (4P) configuration.
• 50 kA specified breaking capacity.
• TMA thermal-magnetic adjustable protection.
• Thermal overload protection against sustained excessive current.
• Magnetic short-circuit protection against fault currents.
• Manual circuit switching functionality.
• Intended for compatible ABB Protecta Power low-voltage distribution equipment.

High Breaking Capacity Protection for 160A Distribution Circuits

The ABB EPX-XT1S-TM1604 combines a 160 A current rating with a 50 kA specified breaking capacity, making it a suitable candidate for electrical distribution circuits where these characteristics are required. Its thermal-magnetic adjustable protection provides complementary responses to sustained overloads and short-circuit faults.

The thermal protection element responds to excessive current sustained over time, while the magnetic element responds to short-circuit conditions. These functions help protect electrical conductors and connected equipment when the circuit breaker is correctly selected, installed and coordinated with other protective devices.

The four-pole XT1S configuration supports appropriate three-phase distribution arrangements. Electrical designers should confirm the applicable operating voltage, prospective fault current, protection settings, conductor sizing and compatibility with the selected ABB Protecta Power assembly before installation.

Typical Applications

• ABB Protecta Power low-voltage distribution assemblies.
• 160 A four-pole outgoing circuit protection.
• Commercial three-phase electrical distribution boards.
• Industrial electrical panelboard installations.
• Main and sub-distribution circuit protection.
• Building services electrical distribution systems.
• Circuits requiring thermal-magnetic MCCB protection.
• Installations requiring an appropriately rated 50 kA circuit breaker.
• Electrical distribution upgrades and refurbishment projects.