1SDA058977R1 ABB E3N/MS 3200 3200A 3-Pole Fixed Horizontal Rear Switch-Disconnector

Why Choose the ABB E3N/MS 3200 3-Pole Fixed Switch-Disconnector?

The ABB E3N/MS 3200 is a high-current 3200 A three-pole fixed switch-disconnector designed for dependable switching and isolation in demanding low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E3 series, this N-performance device combines substantial continuous-current capability with robust fixed construction for industrial, commercial and infrastructure switchboards.

ABB Emax switch-disconnectors identified by the /MS designation are derived from the corresponding Emax circuit breakers, maintaining their overall dimensions and accessory-mounting possibilities while omitting the overcurrent trip unit. The E3N/MS supports AC-23A utilisation category applications in accordance with IEC 60947-3, making it suitable for switching motor loads and other highly inductive loads as well as general isolation duties.

The 1SDA058977R1 configuration is rated at 3200 A and features a three-pole fixed construction with rear flat horizontal terminals. With a rated operational voltage of 690 V AC, a 65 kA short-time withstand current for both 1 s and 3 s and an N short-circuit performance level, it provides robust switching and isolation for high-capacity low-voltage distribution systems.

Key Advantages

• Proven ABB SACE Emax E3N/MS switch-disconnector platform.
• 3200 A rated uninterrupted current for high-current distribution applications.
• Three-pole configuration for three-phase switching and isolation.
• Fixed construction provides robust permanent switchboard integration.
• Rear flat horizontal terminals support practical high-current busbar connection.
• High 65 kA short-time withstand current for 1 s.
• Maintains 65 kA short-time withstand capability for 3 s.
• 143 kA peak short-circuit making capacity for demanding distribution systems.

Key Features

• ABB SACE Emax E3N/MS 3200 switch-disconnector.
• 3200 A rated uninterrupted current.
• Three-pole construction.
• Fixed (F) installation version.
• Rear flat horizontal (HR) terminal arrangement.
• N short-circuit performance level.
• 690 V AC / 250 V DC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 65 kA for 1 s rated short-time withstand current.
• 65 kA for 3 s rated short-time withstand current.
• 6000-cycle electrical durability and 20,000-cycle mechanical durability.

High-Performance Fixed Switching and Isolation

The ABB E3N/MS 3200 provides a dependable means of making, carrying and isolating high-current electrical circuits without an integrated overcurrent trip unit. Its 65 kA short-time withstand capability for both 1 s and 3 s, together with a 143 kA peak making capacity, supports demanding low-voltage distribution applications when appropriate overload and short-circuit protection is coordinated elsewhere in the installation.

The fixed construction and rear flat horizontal terminals make the 1SDA058977R1 particularly suitable for permanent installation in high-capacity switchboards with rear busbar connections. Combined with its 3200 A current rating, three-pole architecture, AC-23A switching capability and established SACE Emax mechanical platform, the E3N/MS 3200 provides a robust solution for critical industrial and commercial power distribution.

Typical Applications

• Main low-voltage distribution switchboards.
• High-current industrial power-distribution systems.
• Main incomer, feeder and bus-coupler switching.
• Three-phase electrical switching and isolation.
• Motor and highly inductive load switching under AC-23A duty.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• High-capacity fixed switchgear and power-distribution assemblies.