Iec 60947 Vs Iec 60898 How Certification Standards Impact Low Voltage Breaker Sourcing For B2b Projects

Published by the Korlen Engineering Team · Standards & Compliance · 9 min read

Category: Circuit Breakers

What Each Standard Actually Covers

When a buyer asks “is this breaker IEC certified?”, the honest answer is: which IEC standard? The two most quoted low-voltage breaker standards are not competitors — they describe different product families and different installation worlds.

IEC 60898-1 — “Electrical apparatus for household and similar purposes” — applies to miniature circuit breakers (MCBs) used in homes, offices, and light commercial buildings. It defines rated voltage up to 440 V AC, the familiar B/C/D trip curves, and short-circuit capacities in the 4.5–10 kA range. Its tests assume a relatively benign, controlled environment.

IEC 60947-2 — “Low-voltage switchgear and control-gear — Part 2: Circuit-breakers” — is the general-purpose standard for circuit-breakers across industrial, commercial, and infrastructure applications. It covers MCCBs, ACBs, and MCBs used outside the domestic channel, with higher voltage ratings, harsher environmental envelopes, and coordination (selectivity, discrimination) requirements that 60898 does not address.

Key Differences That Affect Your Specification

• Scope of application. 60898 = domestic/similar MCBs; 60947-2 = all low-voltage breakers including industrial MCCBs/ACBs.
• Voltage & breaking capacity. 60947-2 products reach higher Ue and Icu; 60898 caps MCBs at 440 V AC / ~10 kA.
• Coordination. 60947-2 explicitly handles cascade/selectivity and type-1/type-2 coordination with contactors; 60898 does not.
• Marking. A 60947-2 MCCB shows Uimp, Icu, Ics; a 60898 MCB shows the curve and Inc.

IEC 60947-2 vs IEC 60898-1: Comparison Table

How Standards Impact B2B Breaker Sourcing

For a distributor or OEM, the standard is not academic — it is the gate to a market:

1. Tender compliance. Utility and infrastructure tenders frequently mandate IEC 60947-2 MCCBs with declared Icu/Ics. A 60898-only MCB will be rejected.
2. Customs & documentation. Gulf, ASEAN, and EU shipments need the correct certificate body (e.g., SEMKO for Scandinavia, SIRIM for Malaysia) on file.
3. Channel confusion. The same physical MCB often carries both marks; quoting the wrong one to a buyer can lose the order or trigger a return.
4. Spare-parts strategy. Standardizing on 60947-2-rated devices across a plant simplifies stocking even where 60898 would suffice.

Reading the Certificate, Not Just the Logo

A “CE” sticker alone proves nothing — CE is a self-declaration. For B2B confidence, look for:

• CB scheme report (IECEE) — mutual recognition across member countries.
• National marks — SEMKO (Sweden), SIRIM (Malaysia), SEMKO/DEMKO, etc.
• Test lab + standard edition — confirm the report cites the current IEC 60898-1 or 60947-2 edition year.

Korlen KNB2-63-S3 — CE / CB / SEMKO certified miniature circuit breaker

Korlen Range: Built for Both Channels

Korlen’s low-voltage range is engineered to clear both the domestic and industrial gates — MCBs carry CE/CB/SEMKO certification for the 60898 channel, while MCCBs are built to 60947-2 coordination expectations for OEM and EPC projects.

Korlen KNM3 — high-breaking-capacity MCCB for industrial distribution

FAQ

Is IEC 60947 better than IEC 60898?

Neither is “better” — they target different installations. 60947-2 covers a broader, harsher industrial envelope; 60898 is purpose-built for domestic MCBs. Many MCBs comply with both.

Do I need 60947-2 for a residential panel?

Usually no — 60898-1 MCBs are correct for homes. But mixed domestic/light-commercial boards often use 60947-2-rated MCBs for flexibility. See Korlen MCBs.

Why do tenders ask for IEC 60947-2?

Because it defines coordination, selectivity, and higher breaking capacities expected in industrial and infrastructure projects where a total shutdown is unacceptable.

What does CE / CB / SEMKO mean for my shipment?

CE is self-declared conformity; CB is the IECEE mutual-recognition report; SEMKO is a recognized national certification body. Together they smooth customs and tender approval across Europe and Asia.

Can one MCB carry both standards?

Yes. Many B2B MCBs, including Korlen’s KNB2-63-S3, are tested and marked for both the 60898 domestic channel and 60947-2 industrial expectations, simplifying dual-channel distribution.

Conclusion

The IEC number on a breaker is a procurement contract, not a footnote. Match the standard to the installation, confirm the certificate body your market requires, and standardize on devices that clear both channels to keep sourcing simple.

Related Resources

• Korlen full low-voltage catalog
• Korlen MCB / MCCB certification table

© Korlen Electric. For B2B specification reference. Confirm the applicable standard edition and certificate with your market’s authority before procurement.