Schneider BMXDRA0805 | Relay Output Module 8 Channels 2A

The BMXDRA0805 controls AC or DC loads using isolated relay contacts. This output module serves the Modicon M340 automation platform reliably. It provides eight independent channels for switching various field devices. Consequently, you can drive motors, solenoids, lamps, and contactors directly.

You can mix AC and DC loads freely across the eight channels. The BMXDRA0805 handles voltages from 24V to 240V AC or DC. Each relay offers complete isolation between the PLC logic and field wiring. Therefore, this module suits mixed-load applications in industrial environments.

Output Specifications and Relay Details

Each channel uses a single-pole double-throw relay with common contact. The BMXDRA0805 delivers 2 amperes continuous current per relay output. All relays share a common contact arrangement for simplified external wiring. The module switches resistive loads up to 1250 VA or 480 W.

Mechanical relay contacts provide low resistance for minimal power loss. The BMXDRA0805 achieves mechanical relay life of 20 million operations. Electrical life reaches 100,000 operations at rated load. Below is a complete breakdown of its technical characteristics.

Specification	Detail
Number of Outputs	8 (Form A, SPDT relays)
Contact Configuration	Common per channel (Individual N.O. and N.C.)
Switching Voltage	24V to 240V AC or DC
Continuous Current per Channel	2 A (Maximum)
Total Current per Common	8 A (Maximum, all channels)
Switching Power (AC)	250 VA (Resistive)
Switching Power (DC)	48 W (Resistive)
Relay Mechanical Life	20 million cycles (No load)
Relay Electrical Life	100,000 cycles (At rated load)
Response Time (Operate)	10 ms (Maximum)
Response Time (Release)	8 ms (Maximum)
Dimensions (W x H x D)	32 mm x 100 mm x 95 mm
Weight	0.22 kg (220 grams)
Power Draw (3.3V)	100 mA
Power Draw (24V coil)	15 mA per active relay
Energy Storage	None (No battery or capacitor)

Interface and Field Wiring Connections

A removable screw terminal block accepts all output field wiring. The BMXDRA0805 uses a 20-pin connector for secure termination. Each terminal accepts wire sizes from 0.2 to 2.5 mm². Green LEDs illuminate when the corresponding relay coil activates.

You can wire normally open or normally closed contacts as needed. The BMXDRA0805 provides dry contacts with no internal power source. Separate COM terminals allow grouping loads by voltage type. Therefore, you can mix 24V DC and 230V AC on one module.

Operational Benefits for Mixed-Load Applications

This relay module handles both resistive and inductive loads safely. The BMXDRA0805 requires no external suppression for most inductive loads. It works perfectly with motor starters, valves, and heating contactors. Engineers value this module for retrofit projects replacing legacy relay panels.