Unique-Bargains
Unique-Bargains 91C4-A Analog Ammeter DC 0-50A Class 5 45x45x35mm
Analog panel meter measures DC current from 0 to 50 A with Class 5 accuracy and fits a 45 x 45 mm cut-out
- TypeAnalog Multimeters
- Measures DC current from 0 to 50A with Class 5 accuracy
- Compact 45x45x35mm panel fits tight dashboard or enclosure spaces
- Clear analogue scale with fine-tuning button for precise reading
- Operates reliably between -20°C and +50°C ambient temperature
- Requires external 75mV shunt (not supplied) for correct operation
Panel ammeter for DC circuits
This 91C4-A analog panel meter measures direct current from 0 to 50 A with Class 5 accuracy. It is built for technicians and hobbyists who need a simple, readable indication of current flow in automotive, marine or bench-top DC systems. The movement requires an external 75 mV shunt, which is not supplied with the meter.
Replaces basic indicator lamps
The meter upgrades a circuit that previously had no quantitative current display, letting the user see actual amperage instead of guessing from a warning light. The jump is worth it when troubleshooting charging systems, verifying load draw or setting up battery monitors where a numeric reading prevents over-current damage. It is not for installations that cannot accommodate a separate shunt or that need digital logging or alarm outputs.
Limited to analog DC measurement with separate shunt
The Class 5 movement reads only DC amperes and provides no voltage, resistance or continuity functions. Its operating range spans -20 °C to +50 °C, and the mechanism must be protected from knocks or vibration that could upset the needle. Because the shunt is sold separately, the installer must source a matching 75 mV part and ensure wiring runs stay short enough to avoid measurement error.
Highlights
- Measures DC current from 0 to 50A with Class 5 accuracy
- Compact 45x45x35mm panel fits tight dashboard or enclosure spaces
- Clear analogue scale with fine-tuning button for precise reading
- Operates reliably between -20°C and +50°C ambient temperature
- Requires external 75mV shunt (not supplied) for correct operation
Specifications
| Brand | Unique Bargains |
|---|---|
| Type | Analog Multimeters |
Questions about this item
What size panel cut-out does the 45 x 45 mm Unique-Bargains 91C4-A analog ammeter require for mounting?
The meter fits a 1.5 x 1.5 inch square cut-out, which matches the mount size listed for this 45 mm panel meter.
How do I install the 91C4-A DC ammeter, and what is the step most people miss?
You must wire the meter in series with a separate 75 mV shunt; the meter alone cannot measure 50 A and the shunt is not included in the package.
What ongoing care does the 91C4-A analog panel meter need after installation?
Avoid knocking or shaking the instrument; the moving-coil mechanism can lose calibration if subjected to mechanical shock.
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