onetak nema 14-50p to 10-30r 120v/240v 50 amp 4 prong male plug to 3 onetak nema l14-30p onetak nema 10-30p to 14-30r onetak nema 5-15p to 10-30r 120v 15 amp onetak nema 10-50p to 6-50r 240v 50 amp onetak nema onetak nema 10-50p to 14-50r onetak nema l14-30p to l6-30r 240v 30 amp twist lock 4 prong onetak nema 14-50p to 10-30r onetak nema 10-30p to 14-30r 120v/240v 30 amp 3 prong male