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Siemens 5SY7520-7 — 1-Pole MCB (DIN Rail)

Siemens 5SY7520-7 SENTRON MCB, C-curve 2-pole 1P+N, 15/25kA

MPN5SY7520-7
Active

Siemens SENTRON 5SY7520-7 miniature circuit breaker, C-curve, 2-pole 1P+N, 15 kA (EN 60898) / 25 kA (IEC 60947-2), 230 V AC, 60 V DC.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SY7520-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Pole design1P+N
Application suitabilityMechanical engineering / industry
5SY7520-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Energy limitation class3
Overvoltage categoryIII
5SY7520-7 — 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
5SY7520-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

Rated 230 V AC single-phase (250 V single-phase operation) and 60 V DC, it handles the common control voltages in European and North American industrial plants. The C-curve tripping characteristic means it holds through motor inrush and transformer energization — a good match for mixed resistive-inductive loads on a machine circuit. Breaking capacity is rated 15 kA per EN 60898-1 and 25 kA per IEC 60947-2, with a 5 kA rating under UL 1077 / CSA C22.2 No.235 for North American acceptance. That 25 kA figure at the IEC standard means it can clear a high-fault bolted short on a 400V industrial bus without upstream coordination headaches.

Any mounting position works, which saves time when you're cramming gear into a tight gland-plate layout. IP20 with connected conductors — fine inside a locked panel, but don't mount it where washdown spray hits the terminals directly. Sealable cover is standard; combined top and bottom terminals let you loop feed-through without extra busbars.

Environmental range and compliance

Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. That's enough for a machine-tool cabinet or a pump skid mounted on a steel frame.

Frequently asked questions

How do I get current pricing and availability for 5SY7520-7?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ and we'll get you a firm number.

What is 5SY7520-7's listed depth?

76 mm overall depth, with a 70 mm installation depth behind the panel face. That clears a standard 80 mm deep enclosure backplate.

Will 5SY7520-7 drop into a panel specified around 5SY4140-7 without rewiring?

Both are 2-module-width (36 mm) DIN-rail breakers from the same SENTRON family, so the mechanical footprint is identical. The 5SY7520-7 carries a higher breaking capacity (25 kA vs the 5SY4140-7's lower rating), so it's a functional upgrade — no rewiring needed for the same branch circuit.

What compliance documentation does this brand provide for 5SY7520-7?

The breaker carries IEC/EN 60898-1 and IEC/EN 60947-2 ratings, plus UL 1077 and CSA C22.2 No.235 for North American acceptance. Halogen-free and silicon-free construction is documented. Standard RoHS and REACH declarations are available from the manufacturer.

MPN
5SY7520-7