SIEMENS 5TL13910 Disconnect Switch 100A 3-Pole 400V AC DIN Rail

Rated at 100 A and 400 V AC, this 3-pole disconnect switch handles demanding isolation tasks on a standard 35 mm DIN rail. Its screw terminals accept solid or stranded conductors up to 50 mm², making it suitable for high-current distribution circuits.

Overview

The SIEMENS 5TL13910 is a 3-pole disconnect switch (isolator) for AC-22B switching duty. It mounts on a 35 mm DIN rail and occupies 3 modules (54 mm) of width. The front face provides IP40 protection, while the terminals are IP20. Operating temperature range is -25 to +55 °C.

What stands out

• 100 A rated current and 400 V AC rated operational voltage
• 3-pole configuration for three-phase isolation
• High terminal capacity: 1.5–50 mm² solid/stranded, 1.5–35 mm² fine-stranded
• Mechanical endurance of 10,000 switching cycles
• Rated insulation voltage 690 V and impulse withstand 6 kV

Technical details

• Type: Disconnect switch / isolator
• Number of poles: 3
• Rated current (In): 100 A
• Rated operational voltage (Ue): 400 V AC
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Switching category: AC-22B
• Mounting: DIN rail 35 mm
• Terminal type: Screw terminals
• Terminal capacity solid/stranded: 1.5–50 mm²
• Terminal capacity fine-stranded: 1.5–35 mm²
• Degree of protection: IP20 terminals, IP40 front
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +75 °C
• Mechanical endurance: 10,000 cycles
• Electrical endurance: 1,500 cycles
• Modular width: 3 modules (54 mm)
• Standards: IEC/EN 60947-3

Our verdict

A robust 100 A isolator for industrial and commercial distribution boards, with generous terminal capacity and high mechanical endurance.