The 19-year-old right-back has arrived in North Lanarkshire for the rest of the season.
Kaleta came through at Manchester City before joining Wolves in 2020. A prominent feature for their Under 18s and Under 21s, he has gathered plenty minutes of action in the Premier League 2 and Under 18 Premier League.
“With the injuries we have sustained to this point, we thought it was important to bring Marvin in,” manager Stuart Kettlewell said.
“But when seeking a new face, you don’t want to recruit just for another number. We need the quality and character to be correct.
“With Marvin, I feel like we’re getting a young player who has raw ability and room for growth. He has played plenty minutes down in England so we feel this is a good move for him.
“We’ve seen previously with the likes of James Furlong and Georgie Gent, that these loan moves can be a platform for the player to succeed. We’ll be in constant contact with Wolves to keep them informed of Marvin’s progression.”
Kaleta will wear the number 21 jersey.
“The manager told me about how good this loan move could be for my development,” Marvin Kaleta added.
“At this stage in my career, I want to learn and progress. I feel I can do that most by playing first-team football here at Motherwell.
“I’m looking forward to seeing all the fan, who I’m told are great with the players. It’s good the team got off to a good start on Saturday and hopefully we can continue that going forward.”