IS2020DRLYH1A - DRLY Simplex Relay Output Board | GE Mark VI | B7B

The General Electric IS2020DRLYH1A (DRLY) is a Simplex Relay Output terminal board for GE SPEEDTRONIC™ Mark VI turbine control systems. It is a compact, wall-mounted board (not DIN-rail) with 12 Form-C dry contact output relays, connecting to an IS200VCCC, VCRC, or VTUR processor board with a single cable identical to those used on the larger TRLY terminal board.

Two DRLY boards can be connected to a single VCCC, VCRC, or VTUR for a total of 24 relay outputs. Only a simplex version of this board is available. The H1A variant has higher-powered relay contacts than the H1B variant, which is suited for UL-listed Class I, Division 2 hazardous (classified) locations. Note: DRLY does not work with the PDOA I/O pack.

For maintenance and procurement teams, IS2020DRLYH1A should be matched to the existing processor board and application wiring per GEH-6421 Volume II before ordering a replacement.

Control system parts are provided by GTC Control Solutions, Inc., a wholly owned subsidiary of B7B. Parts are offered in unused, repaired, or remanufactured condition, subject to availability. Each repaired or remanufactured component undergoes functional testing in energized panels, with test reporting and warranty support provided for repair and lifecycle-extension programs.