it must be cooled below 32°F using a freezing agent or ice bath to ensure it shows near-zero ohms

This relay is rated for 10 Amps resistive at 120VAC and 7 Amps at 277VAC

and an 83-degree spark electrode angle for optimized arc delivery

If the switch remains open after the system has cooled

White-Rodgers 90-T40M2 Transformer it must be cooled belowWhen you're servicing commercial rooftop units or residential air handlers that require a reliable 24V control circuit, the White Rodgers 90 T40M2 is a standard issue 40VA control transformer that handles the load without breaking a sweat. This Class 2 energy limiting device is engineered for versatility, offering dual 208 240V primary taps to match the line voltage found in most light commercial and residential HVAC applications. The 24V secondary