In sourcing discussions, H7EC-NV-B is often placed next to Omron SMPS 24V 10A, Omron H7Ec N and Omron Counters so procurement teams can align budgets and technical requirements effectively.
Omron H7EC-NV-B Counter
The Omron H7EC-NV-B Counter is designed for DC voltage inputs from 4.5 to 30 VDC, enabling easy connection to multiple sensor types and control systems. It supports both 30 Hz and 1 kHz counting speeds, providing flexibility for slow or fast applications. Its 8-digit LCD ensures clear reading, while IP66 front protection and strong shock, vibration, and noise resistance guarantee reliable operation. Reset options include both external and manual control for simplified usage. Manufactured by Omron and listed within Omron Counter products, this model belongs to the H7EC Series.

| Brand | Omron |
| Product | Counters |
| Model Number | H7EC-NV-B |
Omron H7EC-NV-B Counter - Technical Specifications
| Specification | Value |
|---|---|
| Function | Total Counter |
| Count range | 0 to 99999999 |
| Max. counting speed | 30 Hz/1 kHz (switching) (ON/OFF ratio 1:1) |
| Minimum input signal width | 30 Hz: 16.7 ms 1 kHz: 0.5 ms |
| Reset system | External and manual reset |
| Input signal | Count input, Reset |
| No-voltage input (Contact inputοΌ | Hight level: 4.5 to 30 VDC Low level: 0 to 2 VDC (Input resistance Approx. 4.7 kΞ©) |
| Display method | LCD |
| Display Digits | 8 digit |
| External connections | Screw terminal |
| Input mode | Voltage input |
| External/Manual Reset time | 20 ms |
| Ambient temperature (Storage) | -10 to 55 β (with no freezing or condensation) |
| Ambient humidity (Operating) | 25 to 85 % |
| Dielectric withstand voltage | Between current carrying terminals and exposed non-current carrying metal parts: 1000 VAC 50/60 Hz 1 min |
| Impulse withstand voltage | Between current carrying terminals and exposed non-current carrying metal parts: 4.5 kV |
| Noise immunity | Between count input terminals: Β±500 V Between reset terminals: Β±500 V square-wave noise by noise simulator (pulse width: 100 ns/1 Β΅s, 1-ns rise) |
| Static immunity | Β±8 kV (malfunction) |
| Vibration resistance | Between current carrying terminals and exposed non-current carrying metal parts: 100 MΞ© min. (at 500 VDC) |
| Shock resistance | Destruction: 300 m/s2, 3 times each in 6 directions Malfunction: 200 m/s2, 3 times each in 6 directions |
| Degree of protection | Case front: IP66, NEMA 4 (indoors), and UL Type 4X (indoors) |
| Case color | Light gray (Munsell 5Y7/1) |
| Weight | Approx. 60 g |




