Medium Voltage Soft Starter Brochure

SR7-H

Medium Voltage Soft Starter

2.3-15kV

Features

• Advanced motor protection relay and ramp features programmable via the keypad or a laptop computer
• Fiber optically isolated low voltage compartment with up to 110kV BIL rating for safety and reliability
• Built-in 120V control power transformer*; voltage and current metering.
• Load-break / fault-make rated disconnect switch with door safety interlocking.*
• Visible grounding bar for safe operation.
• Coordinated motor fuses with blown fuse indicators.
• Line isolation vacuum contactor
• Fully rated bypass contactor for increased thermal capacity and optional across-the-line starting.
• Heavy duty SCR stack assemblies with ring transformer isolation for reliable SCR gate firing.
• RTD Option accepts up to 12 RTD inputs.
• Zero sequence ground fault protection option.
• Top entry, bottom exit with room for stress cones. Removable entry plates for easy connections.
• NEMA 12 gasketed enclosure (NEMA 3R optional).