Type A residual current detection covers pulsating DC and AC fault currents — the 100 mA sensitivity is sized for equipment protection rather than personnel shock prevention (30 mA is the typical human-safety threshold).
Siemens 5SU1444-7RC40 RCBO 40 A 4-pole C Type A 100mA
MPN5SU1444-7RC40
Siemens 5SU1444-7RC40 RCBO, 40 A, 4-pole, 7 modules, C characteristic, Type A, 100 mA residual current.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What is the 5SU1444-7RC40 used for?
It is a 4-pole RCBO combining overcurrent protection (C-curve, 40 A) and residual current detection (Type A, 100 mA) in a single DIN-rail module, typically installed in sub-distribution boards for equipment and circuit protection.
Where can I buy the 5SU1444-7RC40?
This part is sourced and quoted to order against an RFQ through independent distribution channels. Contact us with your target quantity and delivery window for a current price and availability check.
MPN
5SU1444-7RC40