the orange finish specifically designates the 4-8" W

What is the purpose of the NEMA 4 rating on this assembly

Direct Fit Replacement: Features a 1/2" gas connection

Common Questions: What does the L240F-40F rating indicate

Dwyer Instruments TSW-250 Temperature Switch Freon the orange finish specifically designatesThe Dwyer Instruments TSW 250 is a rugged, digital temperature switch designed for heavy duty HVACR and industrial processes. This dual stage temperature control features a weatherproof NEMA 4X enclosure, making it the standard for rooftop units and washdown environments. Operating on a universal 90 to 255 Vac power supply, the TSW 250 eliminates the need for separate models for different voltage requirements. The unit utilizes a precise PTC