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Siemens 5SJ6505-7 — 1-Pole MCB (DIN Rail)

Siemens 5SJ6505-7 SENTRON MCB, 1P+N, C-curve, 0.5 A, 6 kA

MPN5SJ6505-7

Siemens SENTRON 5SJ6 series miniature circuit breaker, 1P+N, C-curve, 0.5 A, 6 kA breaking capacity per EN 60898, 240 V AC, 2 MW, IP20.

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

Specifications

5SJ6505-7 — Identification
ParameterValue
Product designationMiniature circuit breakers
Brand nameSENTRON
Number of poles2
5SJ6505-7 — Electrical & Protection
ParameterValue
Tripping characteristic classC
Rated value (EN 60898)6 kA
Overvoltage category3
5SJ6505-7 — Mounting & Connection
ParameterValue
Mounting positionany
Installation depth70 mm
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SJ6505-7 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

Siemens 5SJ6505-7 SENTRON MCB — 1P+N, C-curve, 0.5 A

The Siemens 5SJ6505-7 is a SENTRON 5SJ6 series miniature circuit breaker with 1P+N poles, a C-curve tripping characteristic, and a rated current of 0.5 A at 240 V AC.

Rated 0.5 A at 240 V AC — this is a low-current branch circuit protector, sized for control transformers, signal circuits, or small lighting strings, not general-purpose power outlets. The C-curve holds through the inrush of a small contactor coil or a few LED drivers. The 6 kA breaking capacity (EN 60898) is standard for domestic sub-distribution; the same 6 kA under IEC 60947-2 confirms it for industrial panel use where the prospective short-circuit current stays under that threshold. 1P+N design switches line and disconnects neutral on trip. Occupies 2 width units on DIN rail. Maximum DC voltage is 60 V. Rated insulation voltage is 440 V AC. Multi-phase operation up to 440 V AC maximum.

Deployment context

Installation depth is 70 mm. IP20 with connected conductors. The sealable feature allows the breaker to be locked in the OFF position with a padlock for lockout/tagout procedures.

Frequently asked questions

What is the difference between 5SJ6505-7 and the 5SL4120-7CC?

The 5SL4120-7CC is a 1-pole, 20 A, C-curve MCB with 10 kA breaking capacity and a 72 V DC max rating, while the 5SJ6505-7 is 1P+N, 0.5 A, 6 kA, and 60 V DC max. They share the same SENTRON family and DIN-rail footprint, but the current rating and pole configuration are different — they are not drop-in replacements without rewiring.

MPN
5SJ6505-7