What contact material options are available in Honeywell thermostats?
Honeywell thermostats are available with two main contact options: WE-1 gold alloy cross point contacts and silver/nickel alloy contacts. Gold alloy contacts are used in low voltage applications, while silver/nickel alloy contacts are used in high current applications. The choice depends on the specific thermostat series and its intended use. (Pages 2-6)
From the official Honeywell Home Climate Control Thermostat Series 2450A manual, page 2
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