The Siemens 5SM1642-0FD is a Type AC FI-Protector (residual current device / RCD) rated 25 A, 4-pole, with a 0.3 A rated residual operating current (IΔn) at 400 V. The 4-module (4 TE) width fits standard DIN-rail enclosures.
Siemens 5SM1642-0FD FI-Protector Type AC, 25A 4P 0.3A
MPN5SM1642-0FD
Siemens 5SM1642-0FD FI-Protector Type AC (WS), 25A, 4-pole, 0.3A rated residual current, 400V, 4 module width (TE).
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
What is 5SM1642-0FD's rated current and residual current?
The 5SM1642-0FD is rated 25 A, 4-pole, with a 0.3 A rated residual operating current (IΔn) at 400 V.
Where can I buy 5SM1642-0FD?
The 5SM1642-0FD is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.
MPN
5SM1642-0FD