ER425NST - Boltswitch 3P 240V 400A Fusible Bolted Pressure Switch NEMA 1

ER425NST

ER425NST is a 3-phase, 3-pole, 240V, 400A fusible bolted pressure switch designed for reliable circuit protection and efficient operation in industrial and commercial power distribution systems. This Boltswitch ER425NST model features a NEMA 1 enclosure and is built for secure, high-performance switching applications. The ER425NST utilizes a bolted pressure contact design for improved conductivity and reduced heat generation compared to traditional knife or butt contact switches. Its robust construction ensures long-lasting durability and safe operation in demanding environments. The switch is suitable for use where high available fault currents are present and provides a dependable solution for main or branch circuit disconnects.

• 3-phase, 3-pole configuration
• 240V AC voltage rating
• 400A continuous current rating
• Fusible bolted pressure switch type
• NEMA 1 enclosure
• ER series frame
• Quick-Make, Quick-Break operator design
• Pressure taps on terminals for monitoring
• Threaded steel inserts for easy fuse installation
• Coined edges on stationary contacts
• Formed copper parts for strength and cooler operation
• Linkages allow manual maintenance position

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Specifications

• Part Number: ER425NST
• Manufacturer : Boltswitch
• Brand : Boltswitch
• Category : Switch
• Item Subcategory : Bolted Pressure
• Family : ER Series
• Type : ER
• Voltage : 240
• Amperage : 400
• Phase : 3
• Poles : 3
• AIC rating : 200kA@240V
• Fuse Class : R
• Configuration : Single
• Switch Style : Fusible
• Nema Rating : 1
• Compatible Frames : TEB

Product Data

• Weight : 250