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        Click to enlarge. Images representative | INR16A - 16A AC Inrush Current LimiterInrush Current Limiter, DIN-mount. 80-265V AC. Limits Inrush current to 16AFeatures:
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| Overview | Specification | Connection Diagram | Dimensional Drawing |
The INR16A is designed to limit inrush current in AC circuits. It is ideal for connecting heavily inductive or capacitive loads to type-B MCBs, or to allow an otherwise heavy load to be connected to a standard breaker.
The unit works by adding a series resistance between the LIN and LOUT terminals for a pre-determined period of time. After a small delay once the inrush has passed, an internal relay activates, bypassing the resistor and allowing full current to the load.
The unit switches the relay on the zero-voltage crossing under normal operation to ensure longevity.
The total energy absorption is measured by the unit during the inrush period. If the total energy exceeds 400J (for example if the unit starts up in to a short-circuited load) the internal relay activates on the next zero-current crossing. This action protects the INR16A and ensures the upstream breaker trips if there is a fault with the downstream load.
The unit is also fully thermally protected, and protected from transient overvoltage and undervoltage conditions.
INR16A Specifications
| Parameter | INR16A | Comment |
|---|---|---|
| Datasheet |  | |
| Nominal Supply Voltage Range | 80- 265V AC rms, 47-63Hz | |
| Maximum Load Current | 16A rms | |
| Peak Inrush Current, 230V | 23A rms Nominal, 29A max | |
| Peak Inrush Current, 120V | 12A rms Nominal, 15A max | |
| Inrush Delay | 500ms | |
| Ingress Protection (IP Rating) | IP20 | |
| Mechanical Fixing | DIN-Rail Mount | |
| Electrical Connection | 5.2mm2 rising clamp terminal block | |
| Enclosure Style | DIN-mount vented package |
INR16A Typical Connection Diagram
INR16A Dimensional Drawing
