Siemens SBPTM480
SBPTM480, Siemens, SB Series, current transformers, Type SB potential transformer (PT) modules, rated for 480V, required for all SB-EC trip units, one PT module can power up to three trip units when the line side bus is common, 50 feet max wire length, suitable for use with SBA, SBH, SBS insulated case circuit breakers