Typically, this style of relay is only able to switch 30A at 24Vdc/240Vac. The DG38L can handle voltages up to 80Vdc (as an option) or 45A at 28Vdc as standard.
The relay measures a compact 32.2 x 27.5 x 28mm and is suitable for switching dc motor loads, such as winches, stair lifts, CNC machines, garage door motors and solar energy controllers.