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Siemens 5SY5101-7 — 1-Pole MCB (DIN Rail)

Siemens 5SY5101-7 SENTRON MCB, C-Curve, 1P, 10kA

MPN5SY5101-7
Active

Siemens SENTRON 5SY5101-7, 1-pole miniature circuit breaker, C-curve, 10 kA per IEC/EN 60898-2 and UL1077, 400 V AC / 220 V DC, 18 mm wide.

$35.08Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY5101-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityuniversal current
5SY5101-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SY5101-7 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY5101-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

Siemens SENTRON 5SY5101-7 — C-curve MCB, 1-pole, 10 kA

It carries a 10 kA breaking capacity per IEC/EN 60898-2 at 400 V AC and 220 V DC, with an elevated 15 kA DC rating under IEC 60947-2.

On a 1-pole breaker, that covers single-phase loads up to the rated voltage. The 10 kA breaking capacity per IEC/EN 60898-2 is the standard for most distribution boards; the 15 kA DC rating per IEC 60947-2 gives extra headroom in DC circuits (220–250 V DC). The 18 mm width saves rail space — one modular unit per pole. Combined terminal top and bottom simplify busbar connection.

Snap-on DIN rail mount, any position. Combined terminal top and bottom accept busbars. Halogen-free and silicon-free construction — no outgassing concerns in sealed enclosures. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Ambient temperature range -40 to 75 °C, with derating above 55 °C per the humidity/temperature table.

Frequently asked questions

Where can I buy 5SY5101-7 and how do I get a price?

Submit an RFQ through this listing. We source through independent distribution and confirm availability and current pricing at quote time — no stock count or price figure published here.

Will 5SY5101-7 drop into a panel specified around 5SY5240-7?

Both are 1-pole SENTRON MCBs on an 18 mm footprint with C-curve, so the mechanical fit is identical — same DIN rail clip, same busbar comb compatibility. The difference is the rating: 5SY5101-7 is a lower-current variant than 5SY5240-7. Check your load current before swapping.

What compliance documentation does Siemens provide for 5SY5101-7?

The breaker is certified to IEC/EN 60898-2 and UL1077. It is halogen-free and silicon-free. Standard documentation includes the declaration of conformity and the datasheet. Specific RoHS/REACH declarations are available from Siemens upon request.

MPN
5SY5101-7