Why a Checklist Beats a Price Sheet

A waterproof connector checklist turns a vague request into a spec that actually ships. Waterproof connectors fail in the field for boring, predictable reasons: wrong IP rating, mismatched wire gauge, or missing certification. Use this checklist on every panel-mount and waterproof connector RFQ—especially for IP-rated cable connectors.

For the rating system, see Wikipedia: IP Code (Ingress Protection).

1. Read the IP Code Correctly

IP67 = dust-tight + immersion to 1 m for 30 min. IP68 = continuous immersion at a stated depth. “Splash-proof” is not a rating—demand the two-digit code and the test depth in writing.

2. Pin Count Matches the Signal, Not the Housing

A 4-pin connector carrying 2 power + 2 signal is common, but mixing current paths causes crosstalk. List every conductor and its amp rating before choosing the pin layout.

3. Wire Gauge vs Current Draw

4. Certification That Clears Customs

For EU/US shipments, request CE, RoHS and (for outdoor) UV-resistance data. Without them, goods stall at the border. UL is required for many North American installations.

5. Mating Cycle & Torque

Field connectors see repeated mating—spec the cycle rating and the recommended tightening torque so installers don’t under- or over-tighten.

The 4 Mistakes We See Most

• Buying “waterproof” with no IP code.
• Undersizing wire gauge for the load.
• Forgetting UV resistance outdoors.
• No certification paperwork for import.

Send us your application (voltage, current, environment) and we’ll return a matched connector specification—free of charge.

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