Ratings that matter for sizing
The BMXDRA1605: Minimum switching current is 1 mA at 5 V DC — the relay can handle low-power signals, not just motor or lamp loads. Response times clock in under 8 ms activation and under 10 ms deactivation, adequate for most valve and contactor sequences. Electrical durability is specified across AC-15, AC-12, DC-12, and DC-13 categories, with 100,000 cycles typical at common voltage/VA combinations and up to 300,000 cycles at reduced loads. Power dissipation totals 3 W for the module.
Installation notes
Typical current consumption is 100 mA from the 3.3 V backplane and 95 mA from the 24 V field supply. Each output requires an external fast-blow fuse for short-circuit and overload protection; use a free-wheeling diode across DC loads and an RC snubber across AC loads to suppress overvoltage. LEDs provide per-channel green channel diagnostics plus a red ERR and red I/O fault indication — no need for external annunciators.
