Siemens 5SU1644-7RC40 RCBO, 40 A, 4-pole, 7 modules, C characteristic, Type A 300 mA.
Type A residual current detection handles pulsating DC and sinusoidal AC fault currents up to 300 mA, which covers most single-phase electronic loads like switched-mode power supplies and variable-speed drives.
The C-curve characteristic suits circuits with motor loads, pumps, or compressors where the inrush current exceeds the B-curve threshold but stays within the C-curve range.
It is a 40 A 4-pole RCBO with C characteristic and Type A 300 mA residual current protection, used in distribution boards to combine overcurrent and earth-fault protection in a single DIN-rail device.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
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