Short answer: the series-level equivalents of a Schneider Acti9 iC60N in our range are the CHINT NXB-63 — Icn 6 kA, or 10 kA in the H version — and the older-platform NB1-63 / NB1-63H at the same 6 kA / 10 kA split. Both are modular MCBs to IEC/EN 60898-1 (the NB1 family also has an IEC 60947-2 version), 18 mm per pole, In 1–63 A, B/C/D curves, 1P to 4P. “Equivalent” here means the same class of device with a comparable current, curve, pole count and module width. It does not mean an approved, official or pin-to-pin replacement, and it does not mean shared certification. The exact ordering code decides the rating, and your engineer confirms the selection.
What a cross-reference is allowed to say
A cross-reference chart is a comparison, not a guarantee. There are words we use and words we do not.
We can say that the NXB-63 is similar to or comparable to an iC60N in rating, curve and module width, that it is an alternative option, and that a given code is a cross-reference candidate. We cannot say “official replacement”, “approved substitute”, “OEM equivalent” or “guaranteed interchangeable”. No international brand designates a Chinese modular breaker as its official substitute, so such a claim would be false advertising. And even where the footprint looks identical, the trip-curve tolerance, the I²t let-through energy, the current-limiting behaviour and the cascade (back-up) coordination can all differ. A chart that says “same size” is useful; a chart that says “same behaviour” is a liability.
Brand names and model numbers below are the property of their respective owners and are used for comparison only. CHINT products are independently manufactured and independently certified. They are not authorised, sponsored or approved by Schneider Electric.
The ratings, side by side
| Attribute | Schneider Acti9 iC60N | CHINT NXB-63 (H = 10 kA) | CHINT NB1-63 / NB1-63H |
|---|---|---|---|
| Device type | Modular MCB | Modular MCB | Modular MCB |
| Standard | IEC/EN 60898-1 and IEC/EN 60947-2 | IEC/EN 60898-1 | IEC/EN 60898-1 (IEC 60947-2 version available) |
| Rated current (In) | Up to 63 A | 1–63 A | 1–63 A |
| Curves | B, C, D | B, C, D | B, C, D |
| Breaking capacity | 6 kA at 230 V (1P); 10 kA at 415 V (3P/4P) | Icn 6 kA; H version 10 kA (2P 220–240 V, Ics 7.5 kA) | Icn 6 kA; NB1-63H 10 kA |
| Poles | 1P, 1P+N, 2P, 3P, 3P+N, 4P | 1P, 1P+N, 2P, 3P, 3P+N, 4P | 1P, 1P+N, 2P, 3P, 3P+N, 4P |
| Module width | 18 mm per pole | 18 mm per pole | 18 mm per pole |
| Operating voltage | 230/400–240/415 V AC, 50/60 Hz | 220/230/240 V (1P, 1P+N, 2P); 380/400/415 V (2–4P) | 230/400–240/415 V AC, 50/60 Hz |
Note the standard line in that table. The iC60N is a dual-standard device, so it carries an Icn value to 60898-1 and an Icu/Ics value to 60947-2, and they are different numbers for the same hardware. The NXB-63 is certified to 60898-1; the NB1 family has a 60947-2 version as well. When you write a submittal, state the standard and the voltage that the kA figure belongs to. A 1P value at 230 V and a 3P value at 415 V are not the same test, even when both print “6 kA” on the front. We cover that trap in IEC 60898-1 vs IEC 60947-2 and 6 kA vs 10 kA breaking capacity.
Where the mapping holds, and where it breaks
Three cases, three different answers.
| Requirement you are matching | Closest CHINT series | Can you state equivalence? |
|---|---|---|
| 6 kA modular MCB, In ≤ 63 A, B/C/D, 18 mm | NXB-63 (6 kA), NB1-63 (6 kA) | Yes — series-level comparison, same class |
| 10 kA modular MCB at 415 V | NXB-63 H version, NB1-63H | Yes at the 10 kA step, per code |
| 15 kA (iC60H class) | No modular 15 kA equivalent | No — a 10 kA device does not cover 15 kA |
| 25 kA modular (iC60L class) | Step up to a moulded-case device (NM1 / NXM) | No — different device class |
| Residential 4.5/6 kA price line (Resi9 class) | NXB-40 / NXB-63S (4.5 kA); DELIXI DZ47-60 (4.5 kA) | Comparison only — it is a residential line |
The pattern is worth remembering: the mapping is strong at the 6 kA and 10 kA steps, which is where most modular distribution boards live. It stops at the 15 kA and 25 kA steps, where the honest answer is a different device class rather than a stretched equivalence. If your tender says “15 kA minimum”, a 10 kA breaker is not a substitute at any price, and we will tell you so in the quotation.
Four things that do not travel with the rating
This is the part that decides whether a substitution actually works on site.
| Item | iC60N system | NXB-63 / NB1-63 system | What to do |
|---|---|---|---|
| Comb / pin busbar | Schneider comb, its own jaw geometry | Its own comb and pin geometry | Do not claim busbar compatibility. Quote the matching busbar, or use individual conductors. |
| Auxiliaries | OF / MX / MNV / SD family | NXB: AX-X1 auxiliary, AL-X3 alarm, SHT-X1 shunt, UVT-X1 undervoltage. NB1: XF9, XF9J, S9, V9 | Function names repeat; housings do not. List auxiliaries per device, never mix. |
| Ambient / derating | Derating table for the code | Derating table for the code | Do not assume the same reference temperature. Re-check the derating curve at the panel’s real ambient. |
| Certification | Schneider’s own certificates | Own certificate set per code (CB, VDE, TÜV, UKCA, EAC, IRAM, KC and others by series) | A certificate follows the ordering code, not the family. The sets are independent — never imply shared approval. |
| Cascade / discrimination | Schneider published cascade tables | Own coordination tables | Re-run selectivity when the brand changes; do not reuse the old study. |
One more boundary worth stating plainly: a European modular MCB and a Chinese modular MCB do not share a UL listing. The NB1 family carries a UL certificate for certain codes to the UL 1077 supplementary-protector route, while a North-American 1P miniature breaker from Schneider is a different product family entirely. North-American projects need their own cross-reference exercise against the right standard, not this one. Our verification checklist explains how we confirm the code, the certificate and the mark before shipment.
How to write the line item
Write the specification the way a datasheet reads, and the cross-reference stops being ambiguous. Give us: standard (60898-1 or 60947-2) · rated voltage · breaking capacity at that voltage · curve (B/C/D) · rated current · poles · module width · any auxiliary functions · the certificate your client wants to see · destination country and grid frequency. With those, we can name the exact code and send its datasheet page and the certificate that covers it. Our full comparison table lives on the cross-reference page, and the modular lines are described under MCB and DC breaker, including the NB1-63 modular MCB.
FAQ
Q: Is a CHINT NXB-63 a direct replacement for a Schneider iC60N?
A: No. It is a comparable modular MCB in the same rating class — 6 kA or 10 kA, In 1–63 A, B/C/D, 18 mm per pole — but it is not an approved, official or pin-to-pin replacement, and the accessories and busbars are not interchangeable. Treat the comparison as a shortlist and verify the exact code.
Q: Which CHINT MCB has a 10 kA rating at 240 V?
A: The H version of the NXB-63 is rated Icn 10 kA (2P, 220–240 V, Ics 7.5 kA), and the NB1-63H is rated Icn 10 kA. The base NXB-63 and NB1-63 are 6 kA devices.
Q: Can I fit Schneider accessories to a CHINT breaker?
A: No. Auxiliary contacts, shunt releases and undervoltage releases are specific to their own platform, mechanically and electrically. The NXB-63 uses the AX-X1 / AL-X3 / SHT-X1 / UVT-X1 family; the NB1-63 uses XF9, XF9J, S9 and V9. Matching function names do not imply matching housings.
Q: The tender asks for 15 kA. Does a 10 kA cross-reference qualify?
A: No. Breaking capacity is not a preference, it is a minimum. A 10 kA device does not cover a 15 kA requirement. At that step you either step up the modular code where one allows it, or move to a moulded-case device.
Q: Are the comb busbars interchangeable?
A: No. Each brand uses its own jaw and comb geometry. We quote the matching busbar with the breakers, or supply for individual conductors if your board is wired that way.
Q: Does a cross-reference mean the certificates are shared?
A: Never. Every certificate follows an exact ordering code. A CHINT certificate covers the CHINT code it names, and a Schneider certificate covers the Schneider code it names. Cross-reference the ratings, not the paperwork.
Quote to the code, not to the brand
Send: the Schneider or competitor code you are replacing · standard and voltage · the kA figure at that voltage · curve · In · poles · any auxiliaries · quantity · destination and grid · the certificate your client needs. You get the datasheet page for the exact code, the certificate that covers it, and packing data, within 24 hours. Request a quotation.
Related: ABB, Schneider and Siemens cross-reference · MCB and DC breaker catalogue · MCCB and ACB range · 6 kA vs 10 kA breaking capacity · IEC 60898-1 vs IEC 60947-2 · How we verify genuine product · Contact
Brand names and model numbers are the property of their respective owners and are referenced for comparison only. CHINT products are independently manufactured and independently certified; they are not authorised, sponsored or officially approved replacements. Cross-reference data is indicative — final selection must be verified against official datasheets by a qualified engineer. HAZAM is an independent trading company; we are not the manufacturer and we are not an appointed distributor. Certificates and ratings always refer to the exact ordering code.