Lovato GLC0250C1 IEC/EN three-pole changeover switch 250A

Why Choose the GLC0250C1?

Engineered for dependable source transfer, the Lovato GLC0250C1 three‑pole changeover switch delivers 250 A Ith for AC systems. With Ui 1000 V and 12 kV impulse withstand, it handles demanding installations. AC23A performance reaches 140 kW at 400 V and 250 kW at 690 V. Screw‑on plate mounting speeds panel integration, while compliance to IEC/EN 60947-3, 60947-6-1 and 60947-1 assures proven switching performance.

Built for longevity and safety, it offers a conditional short‑circuit current of 100 kA with gG/250 protection, plus 2500 A making and 2000 A breaking capacity at 400 V AC23A. A wide -25 to +55 °C operating range, 70–185 mm² cable accommodation and 15–22 Nm terminal torque support reliable connections up to 3000 m altitude. Mechanical life is 20,000 cycles and a Sustainability certification underscores responsible design.

Key Benefits

• 250 A IEC Ith handles high current AC distribution reliably.
• AC23A power: 140 kW at 400 V, 250 kW at 690 V.
• Robust 12 kV impulse withstand and 1000 V insulation rating.
• 100 kA conditional short-circuit rating with gG/250 fuse protection.
• Strong 2500 A making and 2000 A breaking capacity at 400 V.
• Wide -25 to +55 °C operating temperature for harsh environments.
• Large 70–185 mm² terminals with 15–22 Nm tightening torque.
• Screw-on plate mounting for fast, secure panel installation.

Technical Specification

• Product type designation: GLC
• Number of poles: 3
• Operating voltage type: AC
• Ith (IEC): 250 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Power dissipation per pole (max): 6.5 W
• Rated operational power AC23A 400 V: 140 kW
• Rated operational power AC23A 690 V: 250 kW
• Conditional short-circuit current (rms): 100 kA
• Short-circuit protection fuse: gG/250
• Making capacity AC23A 400 V: 2500 A
• Breaking capacity AC23A 400 V: 2000 A
• Mechanical life: 20000 cycles
• Terminal tightening torque: 15 to 22 Nm
• Conductor section (IEC): 70 to 185 mm²
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +70 °C
• Max altitude: 3000 m

What’s Included

• Lovato GLC0250C1 changeover switch unit
• Installation and safety instructions
• Manufacturer datasheet (digital link)

Applications

• Mains-to-generator source changeover for industrial panels
• Transfer switching for commercial building services and distribution boards
• Heavy-duty motor and load switching under AC23A duty
• Renewable or backup power system changeover
• Process plant and infrastructure power switching

Safety note: Installation must be performed by qualified personnel. Isolate supplies, apply gG/250 short-circuit protection, and tighten terminals to 15–22 Nm within the stated environmental limits.