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Safety and rating symbols on electrical devices.
All 182symbols recorded in this context, A–Z.
A snowflake, sun, drop and fan naming the four modes.
A wavy line (∼) — IEC 60417-5032, indicating on a rating plate that equipment is suitable for alternating current.
A circle containing a capital A, measuring current.
A capital A, the SI unit symbol for the ampere.
A flat-backed D shape, outputting true only when every input is true.
A stem branching into two upward diagonals.
A notched rectangle, indented at the top centre.
Rectangles of different proportion showing how a picture is fitted.
A single winding with a tap, not two separate coils.
A crossed-out wheeled bin symbol, sometimes marked with Pb, Cd or Hg, required on batteries under EU law to signal separate collection.
Letters and numbers naming a cell's physical size and chemistry.
Alternating long and short parallel lines, marking a cell or battery.
A line with two angled leads inside a circle, one carrying an arrow.
An angular rune-like glyph marking a Bluetooth wireless connection.
A line along the base of a square, heating from below only.
A plain triangle passing its input through unchanged.
Two parallel lines across a break in a wire, marking a capacitor.
One moving blade between two fixed contacts.
One contact that can meet either of two others.
A rake of three short diagonal strokes under a stem.
A key, a padlock or a small figure: the controls are frozen.
A switch drawn with a marking showing automatic operation.
A small square inside a larger square — IEC 60417-5172, marking equipment protected by double or reinforced insulation rather than an earth connection.
A line inside a partial enclosure, marking a screened conductor.
A triangle like an op-amp but with a digital output.
A relay coil driving heavy-current contacts.
Lines top and bottom of a square, the default oven setting.
Fan, light and speed marks on an extractor.
A rectangle marked CTR with a modulus number.
Two lines crossing, one hopping over the other or plainly crossed.
A crystal drawn with two capacitors to ground.
A small rectangle between two plates, marking a quartz frequency reference.
A circle with an arrow, delivering a set current.
A conductor passing through a ring winding.
A rectangle with D and clock inputs and Q outputs.
Two transistor symbols nested inside one outline.
A snowflake with a drop beneath it, or a snowflake being melted.
A clock face with an arrow, or the letter h with a number.
A triangle marking three windings joined end to end.
A trapezoid widening towards the outputs.
A gate line beside a continuous channel line.
A marking that lights when limescale removal is due.
A triangle pointing at a bar, marking a diode.
Two collinear strokes fed from a central gap.
A solid line above a dashed line — IEC 60417-5031, indicating on a rating plate that equipment is suitable for direct current.
A leaf or ECO marking for the slowest and most efficient cycle.
A leaf, or the letters ECO: longer, cooler, and the tested setting.
A gate line beside three broken channel segments.
A circle enclosing three or four short radiating strokes.
A fan with bars showing how fast it runs.
A three- or four-bladed fan: the air is being circulated.
A capital F, the SI unit symbol for the farad.
A snowflake marking a temporary maximum-cold setting.
One to four stars saying how cold a compartment holds.
Letters and numbers stating a fuse's current, speed and voltage.
A rectangle with a line through it, marking a fuse.
A circle with a G and a pointer arc.
A diagram showing which control works which burner.
A zigzag against the top of the square: the top element alone, at full heat.
A shape with one half shaded: run the cycle on a partly filled machine.
A rectangle with a capital H and four terminals.
A sign saying where in a building a loop actually works.
The two letters Hz, the SI unit symbol for the hertz.
A black lightning arrow in a yellow triangle, warning of electrical danger.
Concentric rings, a dashed outer ring, or a flame: which zone and what kind.
A hand above wavy heat lines, warning of burn risk.
A circle with a plus and minus or a bar, holding a set voltage.
A plain rectangle with a symbol inside naming the function.
A MOSFET gate driving a bipolar transistor's collector and emitter.
A coil or spiral, indicating cookware works on induction.
A row of humps or a filled rectangle in a wire, marking an inductor.
An arrow entering a rectangle, selecting which device feeds the screen.
A small circle on a lead marking active-low behaviour.
A contact blade with a short bar marking a visible break.
A field-effect transistor whose gate touches the channel.
A rectangle with J, K and clock inputs.
A filled dot where two wires are connected.
A circle with a cross inside it, marking a lamp or indicator.
A number rating how dangerous a laser is to the eye.
A diode symbol with two arrows pointing away, marking a light-emitting diode.
A resistor in a circle with two arrows pointing at it.
A contact with a small roller or plunger drawn on its actuator.
A rectangle opening into a trumpet shape.
The two letters lm, the SI unit symbol for the lumen.
A lower-case Greek mu with a straight descender, used as the SI prefix for one millionth.
A circle on a stem, converting sound into signal.
A percentage or numbered setting that cycles the magnetron.
A three-terminal transistor with a gate bar separated by a gap.
A circle containing the letter M, marking an electric motor.
A trapezoid narrowing towards the output, with select inputs.
A dot beside one end of each of two coupled windings.
An AND gate with an inverting circle on its output.
A capital N, the SI unit symbol for the newton.
A decibel figure and class on an appliance label.
An OR gate with an inverting circle on its output.
A triangle with a small circle at its point, inverting the input.
A triangle pointing right with two marked inputs.
An LED facing a phototransistor inside one box.
A curved-back shield shape, outputting true when any input is true.
A fan setting with no heat, circulating room-temperature air.
Two upright bars that suspend playback.
A diode with two arrows pointing towards it.
A transistor with two arrows pointing towards it.
A right-pointing triangle that starts playback.
Letters naming national plug patterns.
A capacitor with one curved plate and a plus mark.
A plus, a minus, a bar or a chamfer showing which way round.
A small dated sticker on a plug or lead recording an electrical safety check.
A resistor with an arrow touching it, marking a variable division of voltage.
A plain circle (◯) — IEC 60417-5008, marking the control position that disconnects power from the equipment.
A vertical bar (|) — IEC 60417-5007, marking the control position that places equipment into a fully powered state.
A vertical line inside an unbroken circle — IEC 60417-5010, marking a button that switches equipment between fully on and fully off.
A divided tub for pre-wash; a clock or a bolt for a fast cycle.
A marking selecting a short wash before the main cycle.
A circle enclosing a three-bar earth glyph — IEC 60417-5019, marking the protective earth (ground) terminal on Class I equipment.
A contact operated by a stem with a bar on top.
A marking for a self-clean cycle that burns residue to ash.
A label carrying model, serial, voltage and power figures.
A square is the oven, lines are elements, a fan is forced air.
A filled circle meaning capture rather than play.
Two overlapping blades inside a small capsule outline.
A plain rectangle in the control circuit, with a reference letter.
A coil beside a switch, showing a circuit that a second circuit operates.
A breaker marked with a current-comparison box.
An H, or a lit dot: the zone is off and still hot enough to burn.
A rectangle with a diagonal line and a temperature label.
A zigzag or a plain rectangle in a circuit, marking a resistor.
A star or a sun for rinse aid, and an arrow into a container for salt.
A marking leaving the load standing in the final rinse water.
A buffer or gate containing a small hysteresis loop glyph.
A diode whose bar ends turn like a letter S.
A dial or droplet with a wave: the machine decides when to stop.
A motor circle with a feedback element attached.
A snowflake or small house marking a reduced holding temperature.
A conductor within a dashed enclosing line.
A dashed rectangle around part of a circuit.
A long rectangle with SRG and a stage count.
A solid downward triangle marking a common reference.
A crescent or Z marking an automatic switch-off.
A battery cell symbol with two arrows pointing at it.
A coil marked as producing mechanical movement.
A circle with a coiled arrow, and a number in revolutions per minute.
A rectangle with set and reset inputs and no clock.
A vertical line entering the top of a broken circle — IEC 60417-5009, marking a control that puts equipment into a low-power state rather than fully disconnecting it.
Three lines meeting at a common point.
Rising wavy lines, usually over a vessel.
Drops, bursts and a crossed drop on an iron's controls.
A motor circle with multiple winding connections.
A resistor symbol with a diagonal arrow or a zigzag foil pattern.
A rectangle with an arrow through it, between line and earth.
A break in a wire bridged by a hinged line, marking a switch.
A rectangle with a single T input and a clock.
A small hollow circle where a wire can be connected.
A small marked node intended for measurement.
A resistor crossed by a line marked with a temperature sign.
Two dissimilar lines meeting at a junction point.
Three lines with a numeral and phase notation.
A diode with a gate lead, latching once triggered.
Two coils facing each other across parallel lines, marking a transformer.
An arrow on one lead showing the device's polarity.
Triangles and bars for play, pause, stop and skip.
A triangle with a control line entering its flat side.
Two thyristors drawn back to back with one gate.
Two lines crossing each other repeatedly.
Two round pins without an earth.
Three rectangular pins with a fuse.
Two angled flat pins with an earth.
A flattened oval outline, marking a USB Type-C port.
A capacitor with an arrow drawn across its plates.
A resistor marked with a voltage-dependence stroke.
A capital V, the SI unit symbol for the volt.
A circle containing a capital V, measuring potential difference.
A numbered scale telling a machine how hard the local water is.
A capital W, the SI unit symbol for the watt.
A circle with a W and four terminals.
A crossed-out wheeled bin symbol required on electrical and electronic products under EU law, instructing separate collection rather than general disposal.
Nested arcs radiating from a dot, indicating a wireless network signal.
A small semicircular hop where wires cross without joining.
A number that gets larger as the wire gets thinner.
A curved-back shield with a second arc and an output bubble.
An OR gate with a second curved line across its back.
A diode whose bar has bent ends like a letter Z.