BOM / RFQ

Siemens 5SM3444-0LA01 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SM3444-0LA01 SENTRON RCCB, 4-pole, 40 A, 100 mA, AC

MPN5SM3444-0LA01

Siemens SENTRON 5SM3 series RCCB, 4-pole, type AC, short-time delayed, In: 40 A, IΔn: 100 mA, Un AC: 230 V, 10 kA SCCR, DIN rail mount.

Add to RFQ

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SM3444-0LA01 — Electrical Ratings
Parameter	Value
Number of poles	4
Overvoltage category	III

5SM3444-0LA01 — Identification
Parameter	Value
Product designation	RCCB
Product design / construction	Short-time delayed

5SM3444-0LA01 — Mechanical
Parameter	Value
Mounting position	any
Installation depth	70 mm

5SM3444-0LA01 — Environmental
Parameter	Value
IP degree of protection	IP20, if the distribution board is installed, with connected conductors

Product details

Mounts on DIN rail (REG) in any position. Occupies 4 width units (modular). Installation depth is 70 mm. Tightening torque for the screw terminals is 2.5 to 3 N·m. The housing is finger- and back-of-hand safe (IP20 with connected conductors in an installed distribution board).

Rated for 50 Hz only. Ambient operating range -5 to +45 °C; storage range -40 to +75 °C. Overvoltage category III. Mechanical service life 10,000 switching cycles typical. Surge current resistance 3 kA. Silicon-free construction.

Frequently asked questions

What is the wire range for 5SM3444-0LA01?

The terminals accept solid and stranded copper from 1.5 mm² up to 25 mm².

Where can I buy 5SM3444-0LA01 and get current pricing?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.