ZN48 Series counting and measuring relays combine timing, accumulation, tachometer and frequency-meter functions in panel-mounted controllers. ZN48 and ZN72 share the same functional platform and output ratings, while the main difference is the front-panel size and cutout.
Common Parameters
| Parameter | Specification |
|---|
| Functions | Time relay, totalizer, tachometer, frequency meter and related measuring functions; 16 functions and 9 delay ranges |
| Operating Power | AC/DC24V, AC220V, AC/DC100-240V or AC380V |
| Power-Failure Memory | 10 years |
| Contact Form | One normally open and one normally closed contact |
| Contact Capacity | 3A AC250V resistive load |
| Thermal Current | 5A |
| Insulation Voltage | Ui 400V |
| Impulse Withstand Voltage | Uimp 2.5kV |
| Utilization Category | AC-15, Ue AC250V, Ie 3A |
| Ambient Temperature | -5 to 40 deg C |
| Installation Method | Panel mounting |
ZN48
| Parameter | Specification |
|---|
| Dimensions | 48 x 48 x 77.5 mm |
| Panel Cutout | 45 x 45 mm |
ZN72
| Parameter | Specification |
|---|
| Dimensions | 72 x 72 x 78 mm |
| Panel Cutout | 68 x 68 mm |
