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Siemens 5SL4304-8 — 3-Pole MCB (DIN Rail)

Siemens 5SL4304-8 SENTRON MCB, 3-pole D 4A 400V 10kA

MPN5SL4304-8
Active

Siemens SENTRON 5SL4 series miniature circuit breaker, 3-pole, D-curve, 4 A, 400 V AC, 10 kA breaking capacity per EN 60898 and IEC 60947-2.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL4304-8 — Identification
ParameterValue
Design / model code5SL4
Brand nameSENTRON
Number of poles3
Suitability for operationResidential buildings/infrastructure
5SL4304-8 — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 6089810 kA
Breaking capacity per IEC 60947-210 kA
Overvoltage category3
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree2
5SL4304-8 — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Rated frequency50 Hz
5SL4304-8 — 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
5SL4304-8 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperature+55 °C, max. 95% humidity

Product details

At 4 A, it protects downstream wiring and loads up to that continuous current. The 10 kA breaking capacity (both per EN 60898 and IEC 60947-2) tells you it can safely interrupt a fault current up to 10,000 A without welding or exploding — a standard rating for most residential and light commercial distribution boards.

The 76 mm depth plus 70 mm installation depth means it sits flush in a 4-module enclosure with room for wiring.

Frequently asked questions

Where can I buy 5SL4304-8 and how do I get a price?

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 for a firm price and delivery.

What is 5SL4304-8's listed depth?

The depth is 76 mm (installation depth 70 mm).

What is 5SL4304-8's listed width?

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

What compliance documentation does Siemens provide for 5SL4304-8?

The breaker is halogen-free and silicon-free, rated per EN 60898 and IEC 60947-2, with IP20 protection. Specific RoHS, REACH, or UL declarations should be requested at quote time — the evidence does not list a UL mark or CE certificate number, but the IEC/EN ratings are standard for European distribution boards.

MPN
5SL4304-8