Skip to main content
Log in
Schneider Electric C103TM100D — Miniature Circuit Breakers (MCB)

C103TM100D ComPacT NSX100 DC trip unit, TM-D, 100 A, 750 V D

MPNC103TM100D
Active

Schneider Electric ComPacT NSX100 DC, trip unit TM-D, thermal-magnetic, 100 A rating, 3P 3D, 750 V DC, EN/IEC 60947-2.

$70.20 – $145.41Ref. price · indicative, final on quote
Schneider Electric C103TM100D datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C103TM100D — Identification
ParameterValue
Product rangeComPacT
Product range (series)ComPacT NSX100...250 DC
Product/component typeTrip unit
Device applicationDistribution
C103TM100D — Ratings
ParameterValue
Poles configuration3P
Rated operational voltage (Ue)750 V DC
Network type (AC/DC)DC
C103TM100D — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
C103TM100D — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-50...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60947-1
C103TM100D — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C103TM100D — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

What this trip unit does

The C103TM100D is a thermal-magnetic trip unit for the ComPacT NSX100 DC range, designed for DC distribution networks. It provides LI protection — L for thermal overload (adjustable Ir from 0.7 to 1 x In) and I for magnetic short-circuit protection (fixed at 800 A). The 3P 3D configuration protects all three poles against DC faults.

Designed as a direct-replacement trip unit for the ComPacT NSX100 DC fixed-mount circuit breaker. The TM-D unit snaps into the breaker cradle without tools; no wiring changes needed on the load side. Storage range of -50 to 85 °C handles warehouse or transport extremes.

Frequently asked questions

What is the rated voltage and current for C103TM100D?

The trip unit is rated 100 A at 40 °C for a maximum operational voltage of 750 V DC, per EN/IEC 60947-2.

What protection functions does the TM-D trip unit provide?

LI protection: thermal overload (L) with adjustable Ir from 0.7 to 1 x In, and magnetic short-circuit (I) with fixed pick-up at 800 A.

Where can I buy C103TM100D?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
C103TM100D