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Siemens 5SL5140-7CC — 1-Pole MCB (DIN Rail)

Siemens 5SL5140-7CC SENTRON MCB, 1P C40 DC 72 V

MPN5SL5140-7CC

Siemens SENTRON 5SL series, miniature circuit breaker, 1-pole, C-curve, 40 A DC, 72 V DC, 10 kA breaking capacity.

Siemens 5SL5140-7CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL5140-7CC — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Application suitabilityResidential buildings/infrastructure
5SL5140-7CC — Electrical & Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SL5140-7CC — Mounting & Connection
ParameterValue
Mounting positionany
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SL5140-7CC — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens 5SL5140-7CC is a SENTRON 5SL miniature circuit breaker (MCB) designed for DC circuits. It's a single-pole unit with a C-tripping characteristic, rated at 40 A with a maximum DC voltage of 72 V.

Where it fits — panel and deployment

Mounting position is any, so orientation in the enclosure is flexible. It's specified for residential buildings and infrastructure, but the DC rating makes it equally useful in industrial control cabinets for DC auxiliary circuits.

The 72 V DC maximum at 40 A is the headline spec — this breaker protects a DC circuit up to that voltage and current, with a breaking capacity of 10 kA (per EN 60898, as the 5SL series is rated).

Frequently asked questions

Where can I buy the 5SL5140-7CC and get a price?

We source the 5SL5140-7CC to order against an RFQ. Submit a request for quote; availability and current pricing are confirmed at that time.

What is the closest functional alternative to the 5SL5140-7CC?

The 5SL4120-7CC is the closest sibling — same SENTRON 5SL series, 1-pole, C-curve, 72 V DC max, same physical dimensions (76 mm depth, 18 mm width, 90 mm height). The difference is the current rating: 20 A vs. 40 A. It will physically fit in the same panel location, but the protection rating must match the circuit design.

What is the depth of the 5SL5140-7CC?

The depth is 76 mm, with an installation depth of 70 mm. Width is 18 mm (one width unit on DIN rail), height is 90 mm.

What compliance documentation is available for the 5SL5140-7CC?

The part is halogen-free and silicon-free. It carries an IP20 protection class (with connected conductors), overvoltage category III, and pollution degree 2. The 5SL series is typically certified to EN 60898 and IEC standards for miniature circuit breakers.

MPN
5SL5140-7CC