Siemens SENTRON 5SY7340-6, 3-pole miniature circuit breaker, 40 A rated, B-curve, 15 kA breaking capacity (EN 60898), 20 kA (IEC 60947-2), IP20, 54 mm wide.
| Parameter | Value |
|---|---|
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Width | 54 mm |
| Height | 90 mm |
| Depth | 76 mm |
The 40 A rating holds at 35 °C. At 40 °C it derates to 38.4 A, at 50 °C to 36.76 A, and at 60 °C to 35.04 A.
The quick-assembly fastening system clips onto DIN rail without tools. Sealable and touch-protected, with halogen-free and silicon-free construction — suited for clean-room or food-bev panels where outgassing matters.
3-pole, 40 A rated, B-curve, breaking capacity 15 kA per EN 60898 and 20 kA per IEC 60947-2. Operating ambient -40 °C to 75 °C. Width 54 mm (3 modular units), depth 76 mm.
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 offer.
Both are 3-pole SENTRON MCBs with the same 54 mm width and DIN-rail mounting, so mechanical fit is identical. However, 5SY7340-6 is a 40 A B-curve, while 5SY4140-7 is a 40 A C-curve — the tripping characteristic differs, so check selectivity and load type before substituting.
The part carries IEC 60947-2 and EN 60898 ratings, overvoltage category III, pollution degree 3. It is halogen-free and silicon-free. Standard Siemens SENTRON documentation includes CE declaration and RoHS/REACH compliance statements.
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