7DO722.7 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 7DO722.7 is a relay module from the System 2003 Controllers series and features eight isolated channels with relay N.O. contacts. It offers a maximum relay voltage of 460 VAC, switching power of 625 VA for AC and 75 W at 30 VDC for DC, and is rated for module currents up to 20 Amps. The device operates between 0°C and 60°C and provides IP20 protection.
Internal Product Review
The 7DO722.7 is a B & R Automation System 2003 relay output module with 8 isolated channels and relay N.O. contacts. Fast output response with max. 10 msec delay and 2.5 A rated output current supports dependable switching in control cabinets. IP20 protection and low 1.4 W power consumption make the module a strong choice for efficient industrial I/O.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
B & R Automation builds the 7DO722.7 as part of its System 2003 Controllers series. The unit is a digital output module that uses relay contacts to switch external loads under PLC control, allowing field devices to be energized or de-energized directly from the backplane of a System 2003 rack. By providing dry contacts instead of transistor outputs, the card isolates the controller from mains circuits and supports mixed AC or DC wiring commonly found in machinery, conveyors, and process skids.
The board provides 8 isolated channels, and each channel uses normally open relay contacts so the load circuit remains open until commanded by the CPU. Nominal excitation levels are rated at 240 VAC / 24 VDC, which covers most industrial solenoids, lamps, and small motor starters. Per-point current handling reaches 2.5 A, giving adequate headroom for inductive inrush while staying within the relay’s thermal limits. Internal module consumption is capped at 1.4 W, so the card imposes minimal load on the system power supply and cabinet heat load. Manufacturer data lists a maximum actuation delay of 10 ms, which suits medium-speed sequencing tasks.
Total switching capacity is constrained by relay design. For AC loads the ceiling is 625 VA, while for DC circuits it is 75 W at 30 VDC. Absolute insulation limits are 264 VAC / 125 VDC, while relay-to-relay spacing withstands up to 460 VAC if adjacent channels carry different potentials. The enclosure is rated IP20, which is intended for installation inside a grounded cabinet and protects against finger contact. Operation is permitted from 0 °C to +60 °C in a horizontal orientation, while vertical mounting is derated to 50 °C; storage extends from -25 °C to +70 °C. A 3.15 A time-lag fuse is fitted for each output so that short circuits can clear locally without tripping upstream branch protection.
