Duty ratings and overload capability
The 3AXD50000031879: Three duty curves are defined. Normal use (Pn) delivers 0.37 kW / 2.4 A continuous. Heavy-duty use (PhD) drops to 0.25 kW / 1.8 A for constant-torque loads like conveyors or mixers. Light-overload use (PlD) matches normal-use power at 0.37 kW but current is slightly lower at 2.3 A — useful for variable-torque fans or pumps where sustained overload isn't expected. UL ratings are given in horsepower: 0.5 Hp light-overload, 0.33 Hp heavy-duty.
I/O and control interface
The module includes 2 analog inputs and 1 analog output for process signals, plus 5 digital inputs and 2 digital outputs for basic machine control. No battery is fitted — no periodic replacement needed. Standby loss is 9 W; total power consumption at rated load is 33 W. Power factor is 0.98, so the input current draw is nearly in phase with voltage, reducing upstream cable and transformer derating.
