Current & Voltage Sensors for UPS and Power Protection
Online, line-interactive, and modular UPS architectures rely on Contisys sensors for fast fault detection, seamless transfer, and accurate load-current reporting.
UPS Measurement Challenges
Modern data-center and industrial UPS topologies transfer between mains and inverter in under one half-cycle. Any measurement lag or phase shift directly degrades transfer performance. UPS sensors also need to handle high inrush currents, survive load step events, and maintain accuracy across a wide load profile from 10 % to 120 % nominal.
Why Contisys for UPS & Power Protection?
Low Phase Shift
Typical phase shift <0.2° at 50/60 Hz — critical for sub-half-cycle transfer in online UPS topologies.
High Overload Capability
3× nominal current for 1 second, 10× for 10 ms — handles short-circuit and inrush events without damage.
Stable Across Load Range
Accuracy specified from 10 % to 120 % of rated — matches real-world UPS load profiles.
Modular System Ready
Compact package and standardized output simplify integration into hot-swappable UPS modules.
Key Use Cases
Input Current (Rectifier)
Mains input current sensing for power-factor correction and input harmonic mitigation.
DC Link / Battery
Battery charge/discharge current measurement for float charging and discharge curve tracking.
Inverter Output
Output current sensing for voltage regulation and overload / short-circuit protection.
Static Transfer Switch
High-bandwidth current detection for fast source-to-bypass transfer.
Recommended Products
Sensors optimized for UPS & Power Protection applications
Frequently Asked Questions
Need a Custom Solution?
Our engineers can recommend the optimal sensor configuration for your specific UPS & Power Protection application.