Mersen E200656F NH2 Fuse-Switch Disconnector 400A 690V 3-Pole 100kA

With a short-circuit breaking capacity of 100 kA when paired with appropriate NH2 fuse links, this three-pole NH fuse-switch disconnector delivers uncompromising fault protection for industrial power distribution. Rated at 400 A and 690 V AC, it ensures safe, visible isolation under load in demanding environments.

Overview

The Mersen E200656F (MPN 08012.000080) is a robust NH fuse-switch disconnector that accommodates NH2 fuse links and complies with IEC 60947-3, utilization category AC-23B. Designed for base plate mounting, it features screw terminals with a maximum capacity of 240 mm², ensuring secure connections for large conductors. The housing is constructed from glass fibre reinforced polyamide, self-extinguishing and halogen-free, providing excellent mechanical strength and fire safety.

What stands out

• High breaking capacity: 100 kA with appropriate NH fuses for superior fault protection.
• Robust construction: glass fibre reinforced polyamide housing, self-extinguishing and halogen-free.
• Enhanced safety: padlockable in OFF position, IP30 front protection, and IP20 terminal protection.
• Wide operating temperature range: -25°C to +70°C for reliable performance in harsh environments.
• High insulation ratings: 1000 V rated insulation voltage and 8 kV impulse withstand voltage.

Technical details

• Product type: NH fuse-switch disconnector
• Fuse size compatibility: NH2
• Number of poles: 3
• Rated current (In): 400 A
• Rated voltage (Ue): 690 V AC
• Rated insulation voltage (Ui): 1000 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Utilization category: AC-23B
• Standard compliance: IEC 60947-3
• Mounting type: Base plate mounting
• Connection type: Screw terminals
• Max terminal capacity: 240 mm²
• Degree of protection (terminals): IP20
• Degree of protection (front): IP30
• Operating temperature range: -25°C to +70°C
• Short-circuit breaking capacity: 100 kA (with appropriate NH fuses)
• Operating mechanism: Front operated
• Lockable: Yes (padlockable in OFF position)
• Housing material: Glass fibre reinforced polyamide (self-extinguishing)

Our verdict

Built for industrial environments where safety and reliability are non-negotiable, the Mersen E200656F combines high breaking capacity with a rugged, halogen-free design. Its padlockable OFF position and IP30 front protection make it a trustworthy choice for visible isolation and long-term performance.