1.1.6 What does the IP23 protection rating of an electric motor mean?

1. Identification number		Meaning:
ISO 20653	DIN EN 60529	Protection against foreign objects	Protection against contact
0		no protection	no protection
1		Protected against solid foreign objects with a diameter ≥ 50 mm	Protected against access with the back of the hand
2		Protected against solid foreign objects with a diameter ≥ 12.5 mm	Protected against access with one finger
3		Protected against solid foreign objects with a diameter ≥ 2.5 mm	Protected against access with a tool
4		Protected against solid foreign objects with a diameter ≥ 1.0 mm	Protected against access with a wire
5K	5	Protected against harmful amounts of dust	complete protection against contact
6K	6	dustproof	complete protection against contact

2nd identification number		Meaning: Protection against water
ISO 20653	DIN EN 60529	Meaning: Protection against water
0		no protection
1		Protection against dripping water
2		Protection against falling dripping water when the housing is tilted up to 15°
3		Protection against falling spray water up to 60° from the vertical
4		Protection against splashing water from all directions
4K		Protection against splashing water from all directions at increased pressure
5		Protection against jet water (nozzle) from any angle
6		Protection against powerful jets of water
6K		Protection against powerful jets of water under increased pressure, specifically for road vehicles
7		Protection against temporary submersion
8		Protection against continuous immersion. Unless otherwise specified, protection is provided up to a water depth of 1 meter. Other water depths must be specified or agreed upon separately ^{. [7]}
	9	Protection against water during high-pressure/steam jet cleaning, especially in agriculture
9K		Protection against water during high-pressure/steam jet cleaning, specifically for road vehicles

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