PM240-2 power module — 55 kW HO / 75 kW LO at 500-690 V
The 6SL3210-1PH28-0UL0 is a SINAMICS G120 Power Module in the PM240-2 blocksize format, air-cooled, without line filter, and with a built-in braking chopper. Output rating is dual-stacked: High Overload (HO) delivers 55 kW with 200 % current for 3 s and 150 % for 57 s at ambient -20 to +50 °C; Low Overload (LO) delivers 75 kW with 150 % for 3 s and 110 % for 57 s at -20 to +40 °C. The HO duty cycle suits pump, fan, and conveyor applications with occasional peak torque demands; the LO rating covers constant-torque loads where the drive runs near rated output continuously.
Dual overload duty and ambient derating
The HO rating (55 kW) allows 200 % overload for 3 seconds — enough for breakaway torque on a loaded conveyor or a cold pump start. The LO rating (75 kW) gives 150 % for 3 seconds, which covers normal acceleration without oversizing the drive for the steady-state load. Ambient temperature ceiling is +50 °C in HO mode and +40 °C in LO mode. If the cabinet ambient exceeds these figures, the drive must be derated per the SINAMICS G120 operating instructions — a common oversight when mounting the module above heat-producing components like braking resistors or line reactors.
Built-in braking chopper and IP20 enclosure
The integrated braking chopper handles deceleration energy without an external braking module — the user only needs to add an external braking resistor sized for the duty cycle. This saves panel space and wiring compared to a separate chopper unit. IP20 protection means the module is not sealed against dust ingress or moisture; it must be installed inside a cabinet rated for the environment. The blocksize format (708 x 305 x 357 mm HxWxD) with FSF frame size requires adequate clearance above and below for airflow — the heatsink fins run the full height of the module.
Firmware compatibility and compliance
This power module is approved for Control Unit firmware version V4.7 HF8. When pairing with a CU240E-2 or CU250S-2, confirm the firmware revision matches — mismatched firmware can cause parameterisation errors or limit access to advanced functions like the onboard braking chopper control. RoHS compliant since 01-01-17; REACH Article 33 disclosure applies for Lead (CAS 7439-92-1) above 0.1 % w/w. The product class is C (manufactured/produced to order, non-returnable), so confirm the order code and ratings before committing.