500SV1B - Transformer, dry type, encapsulated, 0.5kVA, 1 phase, 240x480V primary, 120/240V secondary, 5A, 55C rise

500SV1B - Transformer, dry type, encapsulated, 0.5kVA, 1 phase, 240x480V primary, 120/240V secondary, 5A, 55C rise