Before you place an order, verify cam switch manufacturer claims against six things: an original third-party test report, the exact standard version, the test items covered, a traceable report number, a sample you can test yourself, and a factory you can audit. A datasheet is marketing; a test report is evidence. This guide shows you exactly what to check, with a worked example of a credible report.

A credible report names the standard version, the test laboratory, the report number, the issue date, and the models covered, and it lists measured values against limits. As a benchmark, Konrak’s LW26 switches are covered by TÜV SÜD reports 874102301401-00, 874102301402-00, and 874102301403-00, issued in March 2023 against IEC 60947-3:2020. The reports cover models from LW26-10 (10A) through LW26-63 (63A) — the series extends to 160A, so check which models cover your rating.

Table of Contents

1. Why Verify Cam Switch Manufacturer Claims Before You Order

2. The Six-Point Verification Checklist

3. What a Good Report Contains — The Konrak Example

4. Red Flags

5. How to Close the Deal Safely

6. Summary: The Verification Checklist

7. Frequently Asked Questions

Why Verify Cam Switch Manufacturer Claims Before You Order

Every supplier will say they are certified. The difference between a reliable partner and a costly mistake is whether the claim survives verification. Cam switch failures traced back to unsupported claims cost buyers time, money, and compliance risk — which is why the six-point checklist below exists. Run it before you commit to an order, not after.

• A datasheet is marketing; a test report is evidence.
• Verification takes minutes; a bad purchase takes months to fix.
• The same checklist works for any switch supplier, not just cam switches.

The Six-Point Verification Checklist

Work through the six points in order. Each one is independent, so a pass on point one does not excuse a fail on point six.

• 1. Original third-party report: issued by an accredited body (e.g., TÜV SÜD), not a self-declaration.
• 2. Standard version: IEC 60947-3:2020, not an obsolete edition; European buyers should also see EN IEC 60947-1:2021 / EN IEC 60947-3:2021 alignment.
• 3. Test items: temperature rise, dielectric, making/breaking capacity, short-circuit (Icw/Icm), glow wire.
• 4. Traceable report number: 874102301401-00 / 402-00 / 403-00 in Konrak’s case — a number you can cite back to the issuer.
• 5. Sample testing: run your own temperature-rise and operation checks on a sample.
• 6. Factory audit: verify production and test equipment exist where claimed.

Points one through four verify the paperwork; points five and six verify the physical reality. A supplier that passes all six is rare — and that rarity is exactly why the checklist is worth running. The benchmark report above is a good model of what points one to four look like when done properly.

What a Good Report Contains — The Konrak Example

A report earns trust by listing measured values against limits. Konrak’s TÜV SÜD reports demonstrate the pattern:

• Measured terminal temperature rise 36–40K on LW26-32 against an 80K limit.
• Impulse withstand measured 2.98kV against a 2.5kV requirement; power-frequency withstand 1890V for 1 minute with no flashover.
• Glow wire: 960°C on current-carrying parts, 650°C on insulating parts, per IEC 60695-2-10/-11.
• Creepage and clearance measured above 15mm against requirements of 1.5mm clearance and 10.9mm creepage.

Notice that every line pairs a measured value with a limit. That pairing is what makes a report verifiable — anyone can re-check the arithmetic. The tests were executed against IEC 60947-3 by a laboratory working under TÜV SÜD’s program, so the chain from test to report is traceable.

Report element	What to check	Konrak example
Standard version	Current edition, not obsolete	IEC 60947-3:2020 + IEC 60947-1:2020
Report number	Traceable back to the issuer	874102301401-00 / 402-00 / 403-00
Models covered	Your exact model in the list	LW26-10 to LW26-63 (10A–63A)
Measured vs limit	Values paired with limits	36–40K measured vs 80K limit

Red Flags

• No report number, no standard version, or “certified” with no document to show.
• A report that covers a different product family than the one you are buying.
• Claims of UL certification without a UL file number — Konrak states plainly that UL is not yet held and that UL testing can be arranged.

Red flags are not always dishonest; sometimes they are just sloppy. Either way, they deserve the same response: ask for the document. A supplier that cannot produce its report number, standard version, and model list on request is not ready for your order.

No report number, no standard version, or “certified” with no document to show — treat these as red flags.

How to Close the Deal Safely

• Put report numbers and models into the purchase order.
• Keep a copy of the report with your project documentation.

Once verification passes, make it contractual. Write the report numbers and the exact models into the purchase order so the evidence is tied to the delivery. Keep a copy with your project file — it is your protection in an audit. For related context, see our guide to cam switch certification and the LW26 rotary cam switch range.

Summary: The Verification Checklist

Verification is a habit, not an event. Use this final checklist every time you compare cam switch suppliers:

• Original third-party report with a traceable number.
• Current standard version (IEC 60947-3:2020) and EN alignment for Europe.
• Test items and measured values listed against limits.
• Your exact model inside the tested range.
• Sample test and factory audit arranged before the order.

Konrak will send its TÜV SÜD reports before you order — request them at davy@konrak.com or www.konrak.com.

Frequently Asked Questions

How do I confirm a test report is genuine?

Check the report number, the issuing body, the standard version, the issue date, the model list, and the executing laboratory. A genuine report pairs every measured value with a limit and names who performed the tests.

What counts as an obsolete standard version?

For cam switches, a report against IEC 60947-3:2020 is current; an older edition may not cover the latest requirements. European buyers should also confirm alignment with EN IEC 60947-1:2021 and EN IEC 60947-3:2021.

What if a supplier has no third-party report?

Ask why, and ask what testing they do have. If a supplier cannot produce a report number, a standard version, or a model list, treat the certification claim as unverified and consider a factory audit.