The Hobut M100‑AA1 is a single-phase, self-powered, average-sensing RMS-calibrated current transducer. It converts AC current (direct or via CT) into proportional DC signals (mA or V) without requiring auxiliary power—ideal for energy management systems, switchboards, generators, telemetry, and control systems.

Key Features:

Manufacturer: Hobut (Howard Butler Ltd, UK)
Model / MPN: M100‑AA1
Type: Self-powered average-sensing RMS-calibrated current transducer
Input Current:
- Direct: 0.5–10 A AC
- CT-connected: 1 or 5 A
Output Options: 0–1/5/10/20 mA or 0–5/10 V DC
Frequency Range: 50/60/400 Hz
Working Range: 10–125 % of nominal current
Overload Capacity: Up to 4× continuous; 50× for 1 s
Isolation: 4 kV between input and output
Power Consumption: <1 VA; self-powered
Housing: DIN-rail mount, 55 mm width, ~0.3 kg
Typical Applications: Energy management, telemetry, panel meters, PLCs, generators and switchboards

Hobut – M100-AA1 – 1-Phase Self-Powered RMS-Calibrated Current Transducer