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Normally Open Relay Coil-Controlled Load

CI

CircuitSim

·

Created Jul 22, 2026

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Updated Jul 22, 2026

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Details

Components

4


Schematic

Yes


Simulation

Transient analysis


Copies

Not copied yet

About this circuit

A pulsed coil supply operates the Normally Open Relay while a separate 5 V source feeds its contact load.

Circuit notes

Normally Open Relay Coil-Controlled Load

Application

A pulsed coil supply operates the Normally Open Relay while a separate 5 V source feeds its contact load.

Schematic Organization

The isolated contact supply is on the upper left. The coil pulse source is below it. The relay is centered with its load and measurement to the right.

Expected Behavior

The measured contact node changes state as coil current crosses the relay pickup and dropout thresholds.

Suggested Experiments

Adjust the coil pulse amplitude or pickup threshold and observe when the contact output changes state.

Featured Component

Normally Open Relay is the featured device. Its editor-visible symbol, pins, parameters, and simulation model are used directly in this circuit.

Components used

Components used
4 components
NameManufacturerMPNCountType

DC Voltage Source

Generic

—

1

Official

Normally Open Relay

Generic

—

1

Official

Pulse Voltage Source

Generic

—

1

Official

Resistor

Generic

—

1

Official

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