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Siemens 5SY7501-7 — 1-Pole MCB (DIN Rail)

Siemens SENTRON 5SY7501-7 MCB, 1 A, C-Curve, 2-Pole 1P+N

MPN5SY7501-7
Active

Siemens SENTRON miniature circuit breaker, 5SY7501-7, 1 A rated current, C characteristic, 2-pole 1P+N, 15 kA (EN 60898) / 50 kA (IEC 60947-2) breaking capacity, 36 mm wide.

$27.94Ref. price · indicative, final on quote
Siemens 5SY7501-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY7501-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Pole design1P+N
Application suitabilityMechanical engineering / industry
5SY7501-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SY7501-7 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units2
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY7501-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

Thermal derating — the real-world current limit

At 35 °C ambient the breaker carries its full 1 A. Above that, the bimetal strip heats up faster and the continuous current must be reduced: 0.95 A at 40 °C, 0.93 A at 45 °C, 0.9 A at 50 °C, 0.88 A at 55 °C, and 0.85 A at 60 °C. The surrounding humidity limits are also temperature-dependent: 95 % RH up to 55 °C, then 55 % RH to 70 °C, then 35 % RH to 75 °C. That matters for condensation in outdoor or washdown cabinets.

Compliance and approvals

Sealable terminals allow the installer to lock the cover after commissioning, which satisfies some site safety audit requirements. Protection class is IP20 with connected conductors, meaning finger-safe but not protected against water ingress.

Frequently asked questions

What is the breaking capacity of 5SY7501-7?

15 kA per EN 60898 and 50 kA per IEC 60947-2. The IEC 60947-2 figure governs panel SCCR coordination in industrial distribution.

Where can I buy 5SY7501-7?

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

Will 5SY7501-7 drop into a panel specified around 5SY4301-7CV?

Both are 2-module-width (36 mm) SENTRON MCBs on the same DIN-rail footprint, so the mechanical fit is identical. The 5SY7501-7 is a 1 A C-curve 1P+N unit; the 5SY4301-7CV is a different rating and characteristic — verify the load current and tripping curve before swapping.

What compliance documentation does Siemens provide for 5SY7501-7?

The MCB is designed to EN 60898 and IEC 60947-2, carries overvoltage category III and pollution degree 3 ratings, and is halogen-free and silicon-free. Standard Siemens declarations of conformity and the product datasheet cover the applicable directives.

MPN
5SY7501-7