Here's a bit of info:
# Ratings up to 100 AMP.
# 1 through 4 pole configurations.
# The best relay for heater loads.
# Coil voltages up to 600 volts.
# Hermetically sealed contacts.
# Suitable for resistive, capacitive and inductive loads.
# Various size and AMP rated Tilt Switches
# Solid State Relays up to 70 AMP
But I guess the best way to get your answers is to go to the Horses mouth.
www.mdius.com