
The Hirschmann HC4900 Load Moment Indicator is a core safety protection device designed for all types of construction cranes. It collects critical operational data such as load weight, boom length, and angle in real time, dynamically calculates the lifting moment, and compares it with preset safety thresholds. If an overload or over-limit risk is detected, it immediately triggers an audible and visual alarm and outputs control signals, effectively preventing serious accidents and protecting personnel and equipment safety.
| Item | Specification |
| Model | HC4900 |
| Operating Voltage | DC 10–36V |
| Typical Operating Current | 120mA @ 24V |
| Hardware Version | 50250E_V1.0 |
| Sensor Interface | CANopen |
| Processor | 32-bit high-performance industrial processor |
| Operating Temperature | -40°C ~ +85°C |
| Protection Class | IP65 (housing) |
| Mounting Method | DIN rail / panel mount |
| Compatible Equipment | Mobile cranes, crawler cranes, truck-mounted cranes, etc. |
| Certification | CE |