300 A primary, 5 A secondary — the metering interface for a 300 A feeder
The ABB 1SVR450117R5100 is a CM-CT 300/5 plug-in current transformer. Its primary winding is rated for 300 A continuous; the secondary delivers 5 A at full load, which is the standard burden for panel meters, protection relays, and energy loggers that expect a 5 A CT input. Burden is 5 VA with class 1 accuracy — the ratio error stays within ±1 % from 20 % to 120 % of rated current, which covers the operating range for most feeder monitoring and submetering applications.
DIN-rail snap-on with the accessory kit
The transformer ships with the foot angle, insulating protective cap, and bar fastening screws. A snap-on DIN-rail mounting adapter is available as an accessory — the body itself does not include the DIN clip, so order the adapter separately if panel mounting on DIN rail is the plan.
Active production — sourced per RFQ
Quoted to order against the BOM quantity through independent distribution.