Telergon S5F01253NS0 changeover switch 3P+N 125A I-0-II

The Telergon S5F01253NS0 is a S5F Series base-mounting changeover switch rated 125 A, switching between two supplies with a centre OFF position (I-0-II). It is a size 0 unit in a 3P+N configuration and is operated by a direct or external handle, which is ordered separately.

Technical specifications:

• Commercial reference: S5F01253NS0
• Manufacturer: Telergon
• EAN: 8433996007098
• Series / range: Telergon S5F Series changeover switch
• Product type: Base-mounting changeover switch
• Switching function: I-0-II with an OFF position
• Number of poles: 3P+N
• Frame size: 0
• Rated thermal current [Ith] at 40 °C: 125 A
• Rated insulation voltage [Ui]: 1000 V
• Rated impulse withstand voltage [Uimp]: 8 kV
• Rated operational current [Ie] at 400 V AC-21A: 125 A
• Rated operational current [Ie] at 400 V AC-22A: 125 A
• Rated operational current [Ie] at 400 V AC-23A: 125 A
• Rated breaking capacity at 400 V AC-22: 375 A
• Rated making capacity at 400 V AC-22: 375 A
• Rated short-circuit making capacity [Icm]: 13 kA peak
• Rated short-time withstand current [Icw] 1 s: 7 kA rms
• Mechanical operations: 8,000
• Maximum weight: 2.1 kg
• Mounting: Base mounting
• Operation: Direct or external handle, ordered separately
• Standards: IEC 60947-3
• Neutral pole: Early make - late break

Features and benefits:

• Changeover between two sources with a positive OFF position
• Rated 13 kA short-circuit making capacity and 7 kA 1 s withstand
• Rated for 8,000 mechanical operations
• Can be motorised with the matching Telergon UM-C kit
• Neutral pole is early make and late break

Applications:

• Mains / standby generator changeover in distribution boards
• Dual-supply switching in industrial and commercial installations
• Manual source selection ahead of a motorised or automatic upgrade

Also known as: Telergon S5F01253NS0, S5F Series changeover switch.