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Schneider Electric M9U21250NU — 2-Pole MCB (DIN Rail)

Schneider Electric M9U21250NU

MPNM9U21250NU
Obsolete

Multi9 - C60H-DC - 2P - 50 A - C curve - 500 V DC - 6 kA

Schneider Electric M9U21250NU datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

M9U21250NU — Identification
ParameterValue
Product nameC60
Series / familyMulti9
Product / component typeMiniature circuit-breaker
Device applicationNuclear
M9U21250NU — Electrical
ParameterValue
Rated current [In]50 A at 25 °C
Number of protected poles2
Pole configuration2P
Rated operational voltage [Ue]220 V DC 250 V DC 440 V DC 500 V DC
Network type (AC/DC)DC
M9U21250NU — Protection
ParameterValue
Tripping curve codeC
Magnetic tripping limit8.3 x In +/- 20 %
Breaking capacity (Icu)20 kA Icu at 220 V DC conforming to EN/IEC 60947-2 20 kA Icu at 250 V DC conforming to EN/IEC 60947-2 10 kA Icu at 440 V DC conforming to EN/IEC 60947-2 6 kA Icu at 500 V DC conforming to EN/IEC 60947-2
Rated service breaking capacity [Ics]15 kA 75 % conforming to EN/IEC 60947-2 - 220 V DC 15 kA 75 % conforming to EN/IEC 60947-2 - 250 V DC 7.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V DC 4.5 kA 75 % conforming to EN/IEC 60947-2 - 500 V DC
Suitable for isolationYes
Overvoltage categoryIV
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Operating / control typeToggle
Mechanical durability (cycles)20000 cycles
M9U21250NU — Mechanical
ParameterValue
9 mm pitches4
Width36 mm
Height81 mm
Depth73 mm
Mounting support35 mm symmetrical DIN rail
Mounting modeClip-on
Terminal connectionsTunnel type terminals (top or bottom) 1...25 mm² flexible Tunnel type terminals (top or bottom) 1...35 mm² rigid stranded Tunnel type terminals (top or bottom) 1...25 mm²
Terminal tightening torque3.5 N.m top or bottom
Comb busbar / distribution block compatibilityYES
Local signalling / indicationON/OFF indication
Contact position indicatorYes
M9U21250NU — Environmental
ParameterValue
Operating temperature range-25...70 °C
Storage temperature range-40...85 °C
Relative humidity95 % at 55 °C
M9U21250NU — Approvals
ParameterValue
Standards / complianceEN/IEC 60947-2
MPN
M9U21250NU