Schneider C10F3TM100 MCCB — 100A NSX100F Buyer's Guide

By Abdullah Zahid
15 min read
Schneider C10F3TM100 ComPacT NSX100F 100A 3-pole TMD molded case circuit breaker for industrial three-phase distribution panels

Circuit Breaker, ComPacT NSX100F, 36kA/415VAC, 3 Poles, TMD Trip Unit 100A — Schneider C10F3TM100 Specifications, Price, and Buyer's Guide

If you are specifying or sourcing a three-pole, 100A molded case circuit breaker for industrial three-phase distribution, the Schneider C10F3TM100 is one of the most widely deployed options in the ComPacT NSX100F family. Rated at 36kA breaking capacity at 415VAC, with a 690V AC operational voltage and a thermal-magnetic TMD trip unit, it covers the majority of industrial feeder protection scenarios within a compact 105 x 161 x 86 mm footprint weighing 2.05 kg. The decision to order comes down to three hard numbers: your load current, your available fault current, and your panel space — all covered in detail below.

If you have already confirmed this is the right part, check current pricing and availability for the Schneider C10F3TM100 at LeadTime.ca — ships worldwide.

Who Should Buy the Schneider C10F3TM100 — and Who Shouldn't

This breaker is the right fit when all five of the following are true for your application:

  • Your circuit load is at or up to 100A — this rating is fixed on the C10F3TM100 and cannot be field-adjusted downward for a different protection window.
  • Your maximum available fault current at the installation point does not exceed 36kA at 415VAC — this is the rated ultimate short-circuit breaking capacity (Icu).
  • Your network voltage does not exceed 690V AC operational (800V AC insulation).
  • Your system is three-phase — this is a 3-pole device; it is not suitable for single-phase circuits.
  • Your panel has at least 105 mm of DIN-rail width available and clear top and bottom terminal access.

If your load current is lower (63A, 32A, or 20A), the NSX100F family offers those current ratings as distinct models. If your site fault current exceeds 36kA, you need a higher breaking-capacity variant such as the NSX160F, NSX250F, or NSX400F. If your application demands electronic trip unit adjustability or SCADA communication integration, an NSX100F variant with an electronic trip unit is the correct specification.

On this page:

What the Schneider C10F3TM100 Actually Does in a Three-Phase System

The Schneider C10F3TM100 is a molded case circuit breaker — MCCB in the language of switchgear — from the ComPacT NSX100F family. Its job is to sit between the main power source and a downstream load or sub-panel in a three-phase AC distribution system, providing two distinct layers of protection: thermal overload protection against sustained overcurrent conditions, and instantaneous magnetic protection against short-circuit faults. The TMD (Thermal-Magnetic Differential) trip unit delivers both in a single field-proven assembly.

The thermal element in the TMD unit responds to prolonged overcurrent, tripping the breaker before conductors and connected equipment sustain heat damage. The magnetic element provides a fixed instantaneous trip response for high-magnitude short-circuit faults — the kind that can destroy equipment or create arc flash hazards within milliseconds. Together, these two mechanisms make the C10F3TM100 a self-contained feeder protection solution that does not require a separate overload relay in most standard feeder applications.

At 690V AC operational voltage, this breaker covers the full range of standard industrial three-phase voltages — 415VAC, 480VAC, and 600VAC systems are all within its rated envelope. The 36kA breaking capacity at 415VAC is the critical threshold that must be verified against the site fault-current study before any order is placed. The 800V AC insulation voltage provides margin above the operational rating, consistent with IEC 60947-2 requirements for low-voltage switchgear. All three poles are protected (designated 3D), ensuring no unprotected phase in a three-phase fault scenario.

Part of Schneider Electric's EcoStruxure Power architecture, the ComPacT NSX100F is a current-generation product line — not an aging or end-of-life frame — which means long-term parts availability and continued software integration support within that platform.

Typical System Architecture for the C10F3TM100

The C10F3TM100 typically occupies the feeder protection position between a main distribution board and downstream branch circuits or load centers. Understanding where it sits in the power chain helps confirm correct specification before ordering.

  • Upstream: Main distribution transformer or main switchboard supplying three-phase AC at 415VAC to 690VAC, with available fault current that must be confirmed below 36kA at the breaker's installation point.
  • The C10F3TM100 mounted on a 35mm top-hat DIN-rail in the distribution panel or motor control center, providing overload and short-circuit protection for the downstream feeder.
  • Downstream load: Three-phase motor starters, sub-distribution panels, UPS systems, inverter outputs (solar or wind), or multi-circuit load centers drawing up to 100A continuous.
  • Coordination layer: Downstream devices — branch fuses, thermal overload relays, or secondary MCCBs — must be verified against the C10F3TM100's TMD trip curves to confirm selective coordination before commissioning.
  • Optional integration: Within the EcoStruxure Power architecture, upstream monitoring devices or power meters may communicate panel-level data while the C10F3TM100 provides standalone mechanical protection at the feeder level.

Industries and Applications: Where the C10F3TM100 Is Deployed

Industrial manufacturing facilities — cement, steel, chemical processing, and food and beverage plants — represent the core deployment environment for the C10F3TM100. In these settings, it protects feeder circuits serving medium-duty motors, conveyor drives, and process equipment drawing up to 100A per feeder. The compact 105 x 161 x 86 mm form factor and 2.05 kg weight make it practical for retrofitting into existing panel structures without significant structural modification.

Multi-tenant commercial buildings and industrial parks commonly use the C10F3TM100 in sub-distribution boards where each tenant or production zone receives its own protected feeder. The fixed 100A rating and three-phase configuration match the typical branch sizing for medium-scale commercial loads in these environments.

Renewable energy installations — solar inverter arrays and wind turbine output circuits — represent a growing application area. The 690V AC operational rating accommodates the higher DC-to-AC conversion voltages seen in utility-scale and industrial microgrid inverters, and the TMD trip unit provides reliable downstream protection for inverter output feeders typically in the 80–100A range.

Data centers and water treatment facilities use the C10F3TM100 for feeder and sub-panel protection where UPS integration or pump motor circuits require reliable, compact three-phase overcurrent protection. Its IEC 60947-2 compliance and multi-regional certifications (CCC, EAC, marine) reduce compliance overhead in multi-region deployments and export projects.

Application Typical Deployment
Industrial manufacturing plant Main distribution board feeder protection for three-phase motor and process circuits up to 100A
Multi-tenant commercial building Sub-distribution panel feeder breaker for individual tenant three-phase service
Solar / wind microgrid Downstream protection on inverter AC output feeders at 80–100A, up to 690V AC
Data center or UPS system Feeder protection between UPS output and downstream distribution in three-phase systems
Water treatment or HVAC Motor circuit feeder protection for pump and fan drive circuits in three-phase installations
OEM panel builder Standard-configuration distribution board assembly for 20–50 kW per feeder modular panels

Specifications That Drive the Purchase Decision

Parameter Value Notes
Rated Current (In) 100A at 40°C Fixed rating — not field-adjustable
Poles 3P (3 poles, 3D protected) Three-phase only; all three poles protected
Rated Operational Voltage (Ue) 690V AC 50/60 Hz Covers 415VAC, 480VAC, 600VAC systems
Rated Insulation Voltage (Ui) 800V AC 50/60 Hz Withstand voltage margin above Ue
Breaking Capacity (Icu) 36kA @ 415VAC Must be verified against site fault-current study
Trip Unit Type TMD (Thermal-Magnetic Differential) Adjustable thermal + fixed magnetic protection
Utilization Category Category A Distribution and feeder protection
Pollution Degree 3 per IEC 60664-1 Suitable for industrial environments with conductive contamination
Physical Dimensions 105 x 161 x 86 mm Verify DIN-rail space before ordering
Net Weight 2.05 kg DIN-rail mounted, no enclosure included

Full technical specifications are available on the product page at LeadTime.ca.

C10F3TM100 vs. Other NSX100F Variants: Which One Do You Need?

Model / Variant Current Rating Trip Unit Best For
C10F3TM100 (this model) 100A TMD (Thermal-Magnetic) Standard three-phase feeder protection where fault current ≤ 36kA and TMD coordination is sufficient
NSX100F — 63A variant 63A TMD Lighter-duty feeders and smaller motor circuits where 100A would be oversized
NSX100F — 32A variant 32A TMD Branch protection for smaller loads within the same panel architecture
NSX100F — 20A variant 20A TMD Low-current feeders where the NSX100F frame is specified for panel consistency
NSX100F — Electronic trip variant 100A Electronic trip unit Applications requiring adjustable I2t curves, selective coordination precision, or SCADA communication
NSX160F / NSX250F / NSX400F 160A–400A TMD or electronic Higher current loads or sites where available fault current exceeds 36kA

If your load current exceeds 100A or your available fault current is above 36kA at 415VAC, the C10F3TM100 is not the correct model — check current NSX family availability at LeadTime.ca to identify the right variant for your requirements.

Expert Verdict: Is the C10F3TM100 Right for Your Project?

The Schneider C10F3TM100 is the right specification for industrial maintenance teams replacing aging MCCBs in stable three-phase infrastructure, OEM panel builders assembling standard-configuration distribution boards, and system integrators building modular power distribution panels in the 20–50 kW per feeder range. It is equally well-matched for facility engineers managing multi-circuit distribution with load growth up to 100A per branch, and for renewable energy installers who need compact, reliable feeder protection downstream of inverters in the 80–100A range. The TMD trip unit is field-proven, the 690V AC operational rating covers virtually every standard industrial three-phase voltage, and the ComPacT NSX100F frame's position within the EcoStruxure Power architecture confirms it is a current-generation product with long-term support behind it. The multi-regional certifications — IEC 60947-2, CCC, EAC, and marine — reduce compliance friction for export projects and multi-site rollouts.

Where this model has real limits: it is not the answer for single-phase applications, for sites where the calculated available fault current exceeds 36kA at 415VAC, or for applications where electronic trip unit adjustability is needed for precise selective coordination. If a downstream protection scheme requires granular I2t curve adjustment or remote communication to a SCADA system, an NSX100F variant with an electronic trip unit is the correct specification. If load growth or site expansion will push current requirements above 100A, the NSX160F, NSX250F, or NSX400F variants in the ComPacT family are the logical next step — and specifying upward now may avoid a panel rebuild later.

From a procurement standpoint, the C10F3TM100 is part of a mature, stable product line with no near-term obsolescence risk and typical distributor lead times of 2–3 weeks, with in-stock inventory common at major North American distribution points. That predictability matters during planned maintenance windows and time-sensitive panel builds. Buying through a specialist distributor — rather than a commodity channel — gives you access to coordination diagram review, fault-current consultation, and regional compliance verification (CCC, EAC, marine markings) before the order ships, not after the installation fails an inspection. View current pricing and stock status for the C10F3TM100 at LeadTime.ca — the team ships worldwide and can confirm lead time before you commit to a build schedule.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

What Engineers Need to Know Before Ordering the C10F3TM100

The Schneider C10F3TM100 sits in a product category — mature, well-standardized industrial MCCBs — where buyers and integrators typically move straight from datasheet to distributor order without stopping to post forum questions. That is a reasonable workflow for a specification-grade product when you have a fault-current study in hand and a clear one-line diagram. But the absence of community chatter around this model also means there is no crowd-sourced warning system for the ordering mistakes that do happen. Based on the brief's documented common errors and the wrong-part prevention data, three patterns consistently surface when problems arise with this part.

The most frequent specification error is pole count mismatch: a buyer or installer assumes the NSX100F series covers both single-phase and three-phase variants without checking the model code. The C10F3TM100 is a 3-pole, three-phase device — full stop. If your application is 230V single-phase, this breaker physically cannot be installed correctly. The second pattern is ordering without a short-circuit study: sites with large transformers or backup generators often have available fault currents at 40kA, 45kA, or higher. At those levels, the C10F3TM100's 36kA breaking capacity at 415VAC is insufficient, and the consequences of a fault event go beyond nuisance tripping. The third pattern is selective coordination assumptions: the TMD trip unit's fixed magnetic response (typically in the range of 10 to 14 times nominal current) is not adjustable, which means that if downstream fuses or overload relays are not time-current coordinated against the C10F3TM100's curves before installation, a protection gap or coordination overlap can exist without being obvious until a fault event exposes it.

LeadTime.ca's team works with engineers and procurement specialists on exactly these pre-order verification steps. When community data is sparse and the specification stakes are high — a misapplied MCCB in a high-fault environment is a genuine safety risk, not just a procurement inconvenience — consulting a specialist distributor before placing the order is the practical solution. The wrong-part checklist below captures every check that matters before this order ships.

Wiring and Installation Overview

  • Mount on a standard 35mm top-hat (DIN) rail — no special rail required; push firmly until the locking clip engages and confirm the breaker does not shift horizontally before connecting conductors.
  • Top terminals accept the three-phase incoming feed (L1, L2, L3); bottom terminals connect to the downstream load or sub-panel — confirm cable gauge matches the 100A rating and that insulation strip length does not leave exposed copper beyond the terminal entry point.
  • Torque terminal connection screws to the manufacturer-specified value as indicated in the Schneider Electric installation guide or on the breaker label — do not rely on estimated ranges; consult the official installation documentation for exact Nm values.
  • Before energizing, perform a manual trip test with the system de-energized: press the trip button and confirm the handle drops to the OFF position smoothly, then reset to ON to verify mechanical linkage integrity.
  • After energizing, observe that the handle remains in the ON position with no nuisance trips, and perform a load test per the site commissioning plan — confirm no abnormal sounds or heat signatures at the terminal connections.

Compatible Accessories and System Expansion

The C10F3TM100 is part of the ComPacT NSX100F frame, which supports a range of accessories and expansion components within the NSX100 compatibility ecosystem. Confirm accessory compatibility using the NSX100 frame reference when sourcing.

  • NSX100 frame rotary handles and door-coupling mechanisms — for panel door-mount operation without direct breaker access.
  • NSX100 auxiliary contacts and shunt trip coils — for remote monitoring of open/closed status and remote trip signaling from a control system or safety relay.
  • NSX100 motor mechanisms — for motorized remote switching in automated power distribution or transfer switch applications.
  • NSX100 earth leakage protection modules — add-on residual current protection where ground fault detection is required by code or application.
  • EcoStruxure Power monitoring integration — the ComPacT NSX100F frame supports connection to Schneider's EcoStruxure Power architecture for upstream energy monitoring and switchboard-level data visibility.

Wrong-Part Prevention Checklist

Before placing an order for the Schneider C10F3TM100, verify every item on this checklist against your site documentation and system one-line diagram:

  1. Confirm three-phase load requirement; this is a 3-pole device, not suitable for single-phase.
  2. Verify load amperage equals or exceeds 100A; lower ratings available if load is less.
  3. Check network voltage does not exceed 690V AC; if higher, different model required.
  4. Confirm breaking capacity of 36kA @ 415VAC is adequate for calculated fault current; verify with site fault study.
  5. Ensure DIN-rail space is available (105 x 161 x 86 mm); measure available panel width.
  6. Check that thermal-magnetic trip unit (TMD) meets coordination requirements; some applications need electronic or electronic-as-backup trips.

If any item on this checklist raises a question before you order, contact the LeadTime.ca team — or return to the product page to review the full specification and confirm your selection.

Frequently Asked Questions

What happens if my site fault current exceeds 36kA — can I still use the C10F3TM100?

No. The 36kA at 415VAC figure is the rated ultimate short-circuit breaking capacity (Icu) — the maximum fault current this breaker is certified to interrupt safely. If your site fault-current study shows a higher available fault current at the proposed installation point, the C10F3TM100 cannot be specified for that location. You must select a higher breaking-capacity variant from the ComPacT NSX family, such as the NSX160F, NSX250F, or NSX400F, which offer higher Icu ratings. Running the short-circuit study before ordering is the single most important step in this procurement.

Is the TMD trip unit on the C10F3TM100 adjustable, or is it completely fixed?

The TMD (Thermal-Magnetic Differential) unit combines an adjustable thermal element with a fixed magnetic instantaneous trip. The thermal element can be adjusted to tune the overload response within its specified range, which allows some flexibility in matching the breaker to load characteristics. The magnetic instantaneous trip, which handles high-magnitude short-circuit faults, is fixed — typically activating in the 10 to 14 times nominal current range. If your application requires a fully adjustable magnetic trip threshold or adjustable I2t curves for precise selective coordination, an electronic trip unit variant in the NSX100F family is the correct specification.

Can the C10F3TM100 be used as an isolator, or is it a protection device only?

The C10F3TM100 carries isolation suitability designation, conforming to EN/IEC 60947-2, which means it can serve as both a protection device and an isolation point in the circuit when switched to the OFF position. This dual function is a practical advantage in panel designs where a dedicated isolator switch would otherwise be required alongside the protective breaker. Verify isolation requirements with the authority having jurisdiction for your specific installation.

Does the C10F3TM100 carry certification for use in China, the Eurasian Economic Union, or marine environments?

Yes. The C10F3TM100 carries CCC (China Compulsory Certification), EAC (Eurasian Conformity, covering Belarus, Kazakhstan, and Russia), and marine-duty certification in addition to its base IEC 60947-2 compliance. These multi-regional certifications make it a practical choice for export projects and multi-site international deployments where regional compliance verification would otherwise add procurement lead time. Confirm that the specific certification marking required for your region is noted in the distributor's product documentation before ordering.

What is the typical lead time for the C10F3TM100, and is it commonly held in stock?

Based on market-observed distributor data, the C10F3TM100 typically carries a 2–3 week lead time from authorized distributors, with in-stock inventory common at major North American distribution points. As part of the mature ComPacT NSX100F product family with low obsolescence risk, supply consistency is generally good. However, stock status changes — always verify current availability and lead time directly with your distributor before committing to a project schedule. LeadTime.ca ships worldwide and can confirm live availability for this part.

Can I use the C10F3TM100 in a panel that already has other NSX100F-frame breakers installed?

Yes. The C10F3TM100 uses the NSX100 compatibility frame, which is the common reference for all NSX100-series variants. Accessories including auxiliary contacts, shunt trips, motor mechanisms, and rotary handles designed for the NSX100 frame are compatible. This consistency across the NSX100 family simplifies panel assembly for OEM builders and integrators who standardize on a single frame size for multiple current ratings within the same enclosure.

Why Order from LeadTime.ca

  • LeadTime.ca ships worldwide — no geographic restriction on sourcing or delivery.
  • Specialist industrial automation distributor — not a commodity channel; the team can verify specifications, confirm compatibility, and support coordination questions before the order ships.
  • Transparent pricing and live availability — current pricing for the C10F3TM100 is displayed on the product page; contact the team for volume pricing or project-quantity quotes.
  • Hard-to-find and fast-turn sourcing — for critical downtime situations or tight build schedules, LeadTime.ca sources across multiple supply channels to meet required delivery dates.
  • Regional compliance support — CCC, EAC, and marine certification verification available for export or multi-region project requirements.

At-a-Glance Summary

  • Model: Schneider C10F3TM100 — ComPacT NSX100F, Circuit breaker, ComPacT NSX100F, 36kA/415VAC, 3 Poles, TMD Trip Unit 100A
  • Rated current: 100A at 40°C ambient — fixed, not adjustable
  • Breaking capacity: 36kA at 415VAC — verify against site fault-current study before ordering
  • Operational voltage: 690V AC 50/60 Hz; insulation voltage 800V AC
  • Poles: 3-pole (3D — all three poles protected) — three-phase only
  • Trip unit: TMD (adjustable thermal + fixed magnetic) — electronic trip variants available in NSX100F family
  • Dimensions: 105 x 161 x 86 mm; weight 2.05 kg
  • Mounting: Standard 35mm top-hat DIN-rail
  • Certifications: IEC 60947-2, CCC, EAC, marine-duty
  • Platform: Part of Schneider Electric EcoStruxure Power architecture — current-generation product, low obsolescence risk
  • Typical lead time: 2–3 weeks; in-stock at major North American distribution points — verify before committing to schedule
  • Pricing: Available on the product page at LeadTime.ca — contact for volume or project pricing

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