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Siemens 5SL4302-7 — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SL4302-7 Miniature Circuit Breaker, 3P C 2A

MPN5SL4302-7
Active

Siemens SENTRON 5SL4302-7 miniature circuit breaker, 3-pole, C-curve, 2 A, 400 V AC, 10 kA breaking capacity, 3 modular-width units.

Siemens 5SL4302-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4302-7 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationResidential buildings/infrastructure
5SL4302-7 — Protection
ParameterValue
Tripping characteristic (curve)C
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL4302-7 — Electrical
ParameterValue
Rated current (AC)2 A
Rated voltage (AC, multi-phase)440 V
5SL4302-7 — Mechanical
ParameterValue
Modular width units3
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
SealableYes
5SL4302-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SL4302-7 is a 3-pole miniature circuit breaker rated 2 A at 400 V AC, with a C-curve tripping characteristic and a 10 kA breaking capacity per EN 60898 and IEC 60947-2. It occupies 3 modular-width units (54 mm) on the DIN rail and is rated for residential and infrastructure installations.

Breaking capacity and protection

Thermal derating is published: at 40 °C the continuous rating drops to 1.92 A, at 45 °C to 1.88 A, and at 55 °C to 1.79 A.

Integration

The 54 mm width (3 modular units) and 76 mm depth fit standard distribution boards. Terminal design accepts copper conductors; the sealable cover allows lockout for isolation procedures.

Frequently asked questions

What is the breaking capacity of 5SL4302-7?

The breaking capacity is 10 kA at 400 V AC per EN 60898 and IEC 60947-2.

What is the width of 5SL4302-7?

The width is 54 mm, which corresponds to 3 modular units on a DIN rail.

Will 5SL4302-7 drop into a panel specified around 5SL4363-7?

Both are 3-pole SENTRON MCBs in the same 3-module-wide footprint, so the physical fit is identical. The key difference is the current rating: 5SL4302-7 is 2 A C-curve, while 5SL4363-7 is 63 A C-curve. Check the load before swapping.

Where can I buy 5SL4302-7?

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

MPN
5SL4302-7