Inrush current limiter (startup limiter) Nenurodyta Unitec 250V ~ 16A intermediate EC/684010737

The Unitec inrush current limiter (startup limiter) rated for 250 V~ and 16 A is an intermediate component designed to reduce high surge currents when electrical equipment is switched on. It integrates into AC circuits to moderate the initial charging currents of capacitive and inductive loads, helping to protect downstream components and to reduce mechanical and thermal stress on relays, contactors and circuit breakers. The device is intended for installation inside appliance and industrial control panels where a controlled soft-start behavior is required.

Advantages

This inrush current limiter provides a passive and maintenance-free method of limiting startup currents without requiring additional control electronics. It helps extend the service life of switching elements and reduces the risk of nuisance tripping of protective devices. The unit is compact and suitable for integration in confined electrical enclosures and offers stable performance at the rated mains voltage and current.

Suitable for

• Household appliances with high inrush currents (e.g., refrigerators, washing machines, air conditioners)
• Industrial equipment with capacitive or inductive loads
• Control panels and distribution boards to protect contactors and fuses
• Equipment upgrades where controlled startup is necessary to avoid supply disturbances

Key specifications

• Operating voltage: nominal AC 250 V
• Rated current: 16 A continuous
• Function: limits transient inrush current at power-up
• Application type: inline installation in single-phase AC circuits
• Typical behavior: soft-start effect by introducing series impedance during startup
• Physical characteristics: compact form factor suitable for enclosure mounting

How to use

Install the inrush current limiter in series with the live conductor of the load to be protected, following local electrical standards and ensuring power is disconnected before installation. Ensure the device is mounted and secured in a ventilated area inside the panel or appliance housing to allow dissipation of heat generated during startup events. Verify that the nominal supply voltage and continuous current rating match the application requirements. After wiring, restore power and verify correct operation by observing reduced peak current at startup and normal operation of downstream protective devices.

Usage recommendations

For reliable performance, select this inrush limiter only for applications where the steady-state current does not exceed 16 A and the supply voltage is 250 V~. Do not expose the device to excessive ambient temperatures or moisture. If the application includes frequent start/stop cycles or very high energy inrush events, confirm thermal behavior and consult an electrical specialist to ensure appropriate coordination with fuses, contactors and thermal protection.