According to JohnF :
Thanks Tom. I am taking 2-pole switch to mean just like a light switch.

Not quite. A two pole switch switches two circuits at once. That's
rare in light switches. Light switches usually come as "one way",
"two way" or "three way" - which isn't the same thing at all, and
won't properly switch 240V.

You might wish to consider something a bit beefier than a light switch
acting as a disconnect.

While a light switch works fine IF there's nothing running on the circuit
when you operate them, the usual ones won't like switching current
flow to motorized equipment for very long.

Electrical codes do not permit the use of standard duty light switches
(or breakers for that matter) acting as the power switches for motors.

Horsepower rated switches (or "real" power disconnect switches) are
better.

If you don't expect to be operating the switch that much, and
you make a habit of ensuring that everything is off when you
do operate the switch, it's probably fine.

Don't know how picky an inspector might be.

A decent two pole switch is likely to have a horse power rating on it -
look for that when buying the switch.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.