F. Walther Electric Corporation is an international company committed to serving customers around the world with innovative plug and receptacle systems.
Walther’s IEC 309-1 and IEC 309-2 pin‑and‑sleeve devices are built to international standards and are interchangeable worldwide with other manufacturers that follow the same IEC specifications. The catalog details the product line, including mechanical interlocks, manual disconnect switches, and custom‑built power distribution systems.
The devices are offered in North American (20‑100 A) and International (16‑125 A) current ratings, with watertight (IP67) and splash‑proof (IP44) protection levels. Materials include a high‑impact nylon housing, brass pins, and nickel‑plated contacts. Extensive performance and environmental testing data are provided, covering insulation resistance, dielectric voltage, temperature rise, and corrosion resistance.
| Insulation Resistance | ≥ 5 MΩ at 500 V for 1 min |
|---|---|
| Dielectric Voltage Withstand | 3000 V for 1 min |
| Maximum Temperature Rise | 30 °C at full rated current |
| IP Rating (Watertight) | IP67 |
| IP Rating (Splashproof) | IP44 |
| Housing Material | High‑impact nylon |
North American devices are rated at 20 A, 30 A, 60 A, and 100 A.
A test current far exceeding the device rating is passed through the mating devices and grounding wires, as shown in Table 1.
The pins are made of high‑conductivity brass, and contacts on watertight devices are nickel‑plated for corrosion resistance.