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Siemens 5SL6140-7 — 1-Pole MCB (DIN Rail)

Siemens SENTRON 5SL6140-7 MCB, 1P, 40 A, C-Curve, 6 kA

MPN5SL6140-7
Active

Siemens SENTRON 5SL6140-7 miniature circuit breaker, 1-pole, 40 A, C-curve, 6 kA breaking capacity per EN 60898, 1 MW width.

Siemens 5SL6140-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6140-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityResidential buildings/infrastructure
5SL6140-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)6 kA
Energy limitation class3
Overvoltage categoryIII
5SL6140-7 — Mounting & Connection
ParameterValue
Mounting positionany
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SL6140-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

Panel fit and protection profile

The Siemens SENTRON 5SL6140-7 is a 1-pole miniature circuit breaker rated 40 A at 400 V AC, with a C-trip curve and 6 kA breaking capacity per EN 60898 (also 6 kA per IEC 60947-2). At 40 °C ambient the continuous rating derates to 37.57 A; at 55 °C it drops to 33.61 A, so a warm enclosure or high-density layout requires headroom below the 40 A label. Occupies one modular-width unit (18 mm) on DIN rail, mountable in any position.

Sealable and touch-protected. Halogen-free and silicon-free construction. The product designation per IEC 81346-2 and DIN EN 61346-2 is F (circuit protection). Compliance documentation (CE, UKCA, RoHS, REACH) is part of the standard SENTRON declaration pack; the manufacturer provides a declaration of conformity on request.

Frequently asked questions

What is the breaking capacity of 5SL6140-7?

6 kA per EN 60898 and 6 kA per IEC 60947-2, both at 400 V AC.

What is the width of 5SL6140-7?

18 mm, which is one modular width unit (1 MW). Fits standard DIN-rail enclosures without adapters.

Will 5SL6140-7 drop into a panel specified around 5SL6016-7KL without rewiring?

Yes — same 1-pole form factor, same 18 mm width, same DIN-rail mounting. The 5SL6140-7 is rated 40 A versus the lower-current sibling, so the busbar and load wiring must be sized for 40 A. No panel modification needed for the breaker itself.

Where can I buy 5SL6140-7?

Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What compliance documentation does Siemens provide for 5SL6140-7?

Standard SENTRON declaration pack includes CE, UKCA, RoHS, and REACH conformity. A declaration of conformity is available on request.

MPN
5SL6140-7