The 63 A AC rating is the maximum continuous current the main poles can carry under normal service. At 40 °C ambient the device is rated 58.6 A, and at 45 °C it's 58.59 A — the derating curve is published down to 50.4 A at 70 °C. The 30 mA Type A trip detects sinusoidal AC and pulsating DC residual currents — the most common specification for general-purpose socket-outlet and lighting circuits in commercial and residential panels. The device is not sealable. IP20 applies only when the distribution board is installed with connected conductors — not a standalone ingress rating.
Siemens SENTRON 5SM2345-6 RCD, 4P, 63A, 30mA, Type A
MPN5SM2345-6
Active
Siemens SENTRON 4-pole RCD, 63 A at AC, 30 mA Type A instantaneous, 3 MW, IP20 when installed.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Product designation | RCD-unit |
| Product design / construction | instantaneous |
| Parameter | Value |
|---|---|
| Mounting position | any |
| Width in modular units | 3 |
| Maximum | 45 °C |
| Minimum | -25 °C |
| Width | 124 mm |
| Height | 90 mm |
| Depth | 77 mm |
| Installation depth | 70 mm |
| Parameter | Value |
|---|---|
| IP degree of protection | IP20, if the distribution board is installed, with connected conductors |
Product details
Frequently asked questions
What are the key ratings of 5SM2345-6?
It is a 4-pole RCD rated 63 A at AC, 30 mA Type A instantaneous. The insulation voltage (Ui) is 460 V, surge current resistance is 1 kA, and surge voltage resistance is 4000 V. Operating frequency is 50 Hz.
What is the physical size of 5SM2345-6?
Depth is 77 mm, installation depth is 70 mm, width is 124 mm, height is 90 mm. It occupies 3 modular width units on a DIN rail.
Where can I buy 5SM2345-6?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
5SM2345-6