Telergon C1-02503NSMCB automatic transfer switch 3P+N 250A

The Telergon C1-02503NSMCB is a 250 A 3P+N automatic transfer switch from the C1 Series, providing automatic transfer between two supplies such as a mains feed and a standby generator. It is a size 1 unit classified PC class AC-32B to IEC 60947-6-1.

Technical specifications:

• Commercial reference: C1-02503NSMCB
• Manufacturer: Telergon
• Series / range: C1 Series automatic transfer switch
• Product type: Automatic transfer switch (ATS), automatic transfer
• Number of poles: 3P+N
• Frame size: 1
• Rated thermal current [Ith]: 250 A
• Rated operational current [Ie] at 415 V (AC-31B, AC-32B): 250 A
• Rated insulation voltage [Ui]: 690 V
• Rated impulse withstand voltage [Uimp]: 8 kV
• Rated short-circuit making capacity [Icm]: 17 kA peak
• Rated conditional short-circuit current [Icc]: 120 kA
• Rated control voltage: 230 V / 50 Hz
• Operating transfer time: 3.1 s
• Contact transfer time: 1.2 s
• ATSE class: PC class AC-32B
• Operation cycles: 6,000
• Terminal tightening torque: M10, 10 Nm
• Maximum weight: 11.5 kg
• Connection capacity, Cu cable: 120 mm²
• Standards: IEC 60947-6-1

Features and benefits:

• Automatic transfer and automatic recovery between sources I and II
• Three-phase monitoring with voltage and frequency protection
• Single-phase monitoring (phase-loss detection)
• Generator start / stop control
• Fire-linkage (passive) input for fire-fighting installations
• Source priority setting
• DC 24 V auxiliary power input
• LED indication of source I / II availability and ATS position

Applications:

• Mains / generator changeover in commercial and industrial buildings
• Standby supply for data centres, hospitals and other critical loads
• Dual-feed distribution boards requiring automatic source selection
• Generator sets needing automatic start and load transfer

Compliant with IEC 60947-6-1. Part of the Telergon C1 Series.

Also known as: Telergon C1-02503NSMCB, C1 ATS 3P+N 250 A.