Skip to main content
Log in
Siemens 5SL1170-7MB — 1-Pole MCB (DIN Rail)

Siemens 5SL1170-7MB SENTRON MCB, 1P C 70A 3kA

MPN5SL1170-7MB

Siemens SENTRON 5SL1 series, miniature circuit breaker, 1-pole, C-curve, 70 A rated current, 3 kA breaking capacity per IEC 60947-2, 230/400 V AC, 18 mm wide.

Siemens 5SL1170-7MB datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL1170-7MB — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Application suitabilityResidential buildings/infrastructure
5SL1170-7MB — Electrical & Protection
ParameterValue
Tripping characteristic classC
Overvoltage categoryIII
5SL1170-7MB — Mounting & Connection
ParameterValue
Mounting positionany
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SL1170-7MB — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree2
Halogen-freeYes
Silicone-freeYes

Product details

Voltage and duty ratings

Rated for 230 V AC single-phase and up to 440 V AC multi-phase (line-to-line). DC rating caps at 72 V, so it works in a 48 V or 60 V DC branch but not a 110 V DC control bus.

Mechanical and environmental

Rated for 4 000 mechanical switching cycles — adequate for a distribution board that sees infrequent manual operation; not for a motor-starting duty cycle. IP20 with conductors connected — touch-safe only when wired. Halogen-free and silicon-free construction, so off-gassing in a fire won't corrode nearby contacts or electronics.

Single-width unit (18 mm) snaps onto standard DIN rail. Mounting position any, so vertical or horizontal rail orientation works. Sealable with a lead or tag to prevent tamper after commissioning.

Frequently asked questions

Where can I buy 5SL1170-7MB and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the closest functional second-source to 5SL1170-7MB?

Within the same SENTRON 5SL1 family, the 5SL4106-7CC is a 1-pole C-curve MCB with a 6 A rating and 10 kA breaking capacity per EN 60898. It shares the same 18 mm width, 76 mm depth, and DIN-rail mounting, so it drops into the same panel footprint — but it is a lower-current device and is not a direct functional substitute for a 70 A branch.

Will 5SL1170-7MB drop into a panel specified around 5SL4106-7CC without rewiring?

Yes — both share the same 18 mm width, 76 mm depth, and DIN-rail mounting. The physical footprint is identical, so no enclosure or rail modification is needed. The 70 A rating requires appropriately sized conductors and terminations, but the mechanical fit is a straight swap.

MPN
5SL1170-7MB