Boltswitch ER425ST - Fusible Bolted Pressure Switch 400A@240V (200kA AIC)

Boltswitch ER425ST is a fusible bolted pressure switch designed for high-current industrial power distribution systems. This 400A-rated switch operates at 240V AC with a 200kA interrupting capacity, featuring a rugged 250 lb NEMA 1 enclosure for harsh environments. The ER Series unit complies with industry standards for bolted pressure switches, utilizing Class R fuses in a 4-pole, 3-phase configuration. Its TEB-compatible frame and single-configuration design make it ideal for motor control centers, switchgear, and heavy machinery applications requiring reliable circuit protection.

Key Features & Specifications

• Type: Fusible bolted pressure switch (ER Series)
• Voltage Rating: 240V AC
• Current Rating: 400A
• Configuration: Single
• Poles: 4
• Phase: 3
• AIC Rating: 200kA@240V
• Fuse Class: R
• NEMA Rating: 1
• Compatible Frames: TEB
• Weight: 250 lb
• Switch Style: Fusible
• Standards: Industrial bolted pressure switch requirements
• Applications: Motor control centers, industrial switchgear, heavy machinery power distribution