Panasonic PM4H-SD/SDM is a DIN 48 size star-delta analog timer. Select four types of time ranges between 2 seconds to 100 hours on a single unit. Select between five types of time ranges between 0.04 s and 0.7 s for the star-delta switching times. There is a star-delta switching indicator so you can check the operation at a glance. The AC free power supply and shorter body make it easier to use. Compliant with UL, CSA, CE and LLOYD.