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Schneider Electric DOM11378 — 1-Pole MCB (DIN Rail)

Schneider Electric DOM11378 Domae MCB, 1P, 20A, C Curve, 6kA

MPNDOM11378
Obsolete

Schneider Electric Domae series, DOM11378, miniature circuit breaker (MCB), 1P, 20 A, C curve, 6000 A breaking capacity per IEC 60898-1.

Schneider Electric DOM11378 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

DOM11378 — Identification
ParameterValue
Product / component typeMiniature circuit-breaker
Product rangeDomae
Device short nameDomae MCB
Poles description1P
Number of protected poles1
Device applicationDistribution
DOM11378 — Electrical & Protection
ParameterValue
Rated current (In)20 A
Rated operational voltage (Ue)230/400 V AC 50/60 Hz
Tripping curve codeC
Breaking capacity (Icu / AIR)6000 A at 230/400 V AC 50/60 Hz conforming to IEC 60898-1
Network type (AC/DC)AC
Network frequency50/60 Hz
Control / actuation typeToggle
Mechanical durability (cycles)10000 cycles
DOM11378 — Mounting & Connection
ParameterValue
Terminal connections / wire rangeTunnel type terminals1...25 mm² rigid Tunnel type terminals1...16 mm² flexible
Mounting supportDIN rail
Mounting modeClip-on
Width18 mm
Height81 mm
Depth78.5 mm
Tightening torque (by circuit)2 N.m
DOM11378 — Environmental
ParameterValue
Operating ambient temperature-25...60 °C
Storage ambient temperature-40...70 °C
IP degree of protectionIP20 conforming to IEC 60529
DOM11378 — Approvals
ParameterValue
Conformity standardsSNI 04-6507.1 IEC 60898-1

Product details

The DOM11378 is a Domae-series miniature circuit breaker (MCB) from Schneider Electric, rated 20 A with a C trip curve and a 6000 A breaking capacity at 230/400 V AC per IEC 60898-1. This single-pole unit clips onto a DIN rail for panel integration, occupying 18 mm of width — one modular space.

The DOM11378 is classified as obsolete by the manufacturer. For new installations or BOM-line replacements, an alternative current-production part should be specified.

Terminals accept 1–25 mm² rigid or 1–16 mm² flexible cable; tighten to 2 N·m. Strip length is 14 mm for AC connections. The IP20 finger-safe enclosure suits enclosed panel mounting.

Frequently asked questions

Where can I buy DOM11378 and how do I get a price?

The DOM11378 is sourced through independent distribution channels. Submit an RFQ to confirm availability and obtain current pricing.

What is DOM11378's breaking capacity?

The DOM11378 has a breaking capacity of 6000 A at 230/400 V AC, 50/60 Hz, conforming to IEC 60898-1.

What compliance standards does the DOM11378 meet?

The DOM11378 complies with SNI 04-6507.1 and IEC 60898-1. Its IP20 protection rating is per IEC 60529.

MPN
DOM11378