Selco CAP-054-270 Compatible Thermostat For Randell Steam Table

Is this a three prong?

is this for electrical oven, or for gas? in case of been for electrico oven, which is the range of temperature? and does this work for 220V 16A?

What’s the amp rating? what’s the voltage rating? what’s the phase rating????

Can this be used on a superior steam table