The LIN-Bus Shunt SHP 348 from Philippi is a digital energy shunt for installation in the negative line of a charging source. It extends an existing battery monitor with a second, independent current measurement — for example, for a solar system — and detects continuous currents from 10 mA to 300 A with ±0.5% accuracy.
- Extends PCU, BTM2, BLM2, and LTM monitors with a second current measurement, for example, for solar
- Detects even the smallest currents from 10 mA — ensuring that yield in cloudy conditions is not overlooked
- ±0.5% accuracy across the entire measuring range, providing a basis for reliable daily and weekly balances
- Compact installation in the negative line, connection via M8 stud
Resolution and Accuracy: Crucial for Yield Balance
With an energy shunt, it's not about an instantaneous value, but about a sum over time: How much has the solar system delivered today, how much this week? This is precisely why the lower measurement limit and accuracy are as important here as they are for the battery itself.
The Philippi SHP 348 starts at 10 mA. A significant part of a solar system's annual yield comes not from full sun, but from hours of diffused light — in the morning, evening, and on cloudy days. A shunt with a coarse lower limit simply doesn't count these hours, reporting a systematically low yield.
The ±0.5% accuracy across the entire measuring range ensures that these values can be summed up over days and weeks without a measurement error accumulating in the balance. Only then can the question be answered whether the system is actually delivering what it should — and whether an expansion is necessary.
Application and Connection
The SHP 348 is used when an additional energy source, such as a solar system, needs to be monitored in addition to the service battery. It is installed in the negative line of the respective charging source and transmits its measurement data via LIN-Bus to an existing battery monitor. The electrical connection is made via an M8 stud. Developed and manufactured in Germany.
| Feature | Value |
|---|---|
| Article Number | 070030351 |
| Current Capacity | Continuous current 300 A (600 A for 1 min, 1500 A for 0.5 s) |
| Measuring Range | 10 mA – 300 A |
| Accuracy | ±0.5% across the entire measuring range |
| Current Consumption | 10 mA at 12 V, 5 mA at 24 V |
| Operating Voltage | DC 8–40 V |
| Connection | M8 stud |
| Dimensions | L 118 x W 40 x H 65 mm |
Compatibility
The SHP 348 is compatible with Philippi monitors PCU, BTM2, BLM2, and LTM and extends them with an additional current measurement. For battery monitoring itself — i.e., for state of charge, starter battery voltage, and battery temperature — the Battery Management Shunt SHE 348 is used; the SHP 348 is installed alongside it, it does not replace it.
Frequently Asked Questions
How accurately does the SHP 348 measure?
With ±0.5% across the entire measuring range, starting from 10 mA, for continuous currents up to 300 A.
Why is the fine lower measurement limit important for a solar system?
Because a significant portion of the yield occurs in diffuse light — in the morning, evening, and on cloudy days. A shunt with a coarse lower limit doesn't count these hours and reports a systematically low yield.
What is the SHP 348 compatible with?
With PCU, BTM2, BLM2, and LTM monitors — it extends them with an additional current measurement, for example, for solar.
Does the SHP 348 replace the battery management shunt?
No. The SHP 348 measures an additional source or a single consumer. The battery management shunt SHE 348 continues to handle battery monitoring itself.
How is the shunt connected?
Via an M8 connection stud in the negative line of the charging source.
Order now — unsure which shunt suits your system? Our team will be happy to advise you.
⚠️Safety data sheet can be found under Downloads!
Downloads
Deutsche Downloads
