T-15 Series Switches

Panasonic Corporation Electromechanical Control Business Division

industrial.panasonic.com/ac/e/

© Panasonic Corporation 2019

AECTB5E 201906

REFERENCE

■Dust-protected type

This type of construction prevents dust that is large enough to

have an effect on operation from getting inside the unit. This

construction is stipulated by protective classes against solid

matter in the IEC standards (IEC60529).

The talcum powder used shall be able to pass through a

squaremeshed sieve the nominal wire diameter of 75 μm. The

amount of talcum powder to be used is 2 kg per cubic metre of

the test chamber volume. The duration of the test is 8 hours.

No damage observed after the test.

• Level of protection indicated by the 1st Characteristics number

■Immersion-protected type

This type of construction prevents any harmful effects even after

the device is left underwater at a depth of 1 m for 30 minutes.

This construction is stipulated by protective classes against

water in the IEC standards (IEC60529).

■IEC’s IP Codes

The IEC (International Electrotechnical Commission) has

defined the IP characteristic code that represents the levels of

protection described in IEC standard (IEC60529).

The two numbers that follow the IP code (the characteristics

numbers) indicate the suitability of this protection for all

environmental conditions.

1st characteristics number

2nd characteristics number

IP

1st Characteristics

number

Protection level (IEC60529/Solid matter)

0

No protection

1

Protected against solid matter larger than 50mm

2

Protected against solid matter larger than 12mm

3

Protected against solid matter larger than 2.5mm

4

Protected against solid matter larger than 1.0mm

5

Dust-protected type

Prevents dust that is large enough to have an effect

on operation from getting inside the unit

6

Dust-resistant type

Prevents dust from getting inside the unit

• Level of protection indicated by the 2nd Characteristics number

JIS C0920

2nd

Characteristics

number

Protection level (IEC60529/Liquid matter)

0

No protection

Droplet-protected

type I

1

Protected against water droplets that fall

perpendicular to the unit

Droplet-protected

type II

2

Protected against water droplets that fall

from within 15° of perpendicular to the unit

Rain-protected

type

3

Protected against water droplets that fall

from within 60° of perpendicular to the unit

Splash-protected

type

4

Protected against water that splashes on

the unit from any direction

Spray-protected

type

5

Free from adverse effects even if sprayed

directly with water from any direction

Water-resistant

type

6

Protected against water sprayed directly

on the unit from any direction

Immersion-

protected type

7

Water does not get inside of the unit when

submerged in water according to the

specified conditions

Underwater type

8

Unit can be used underwater

Note: Details of test conditions are the same as NECA C 0920. Please refer to them.

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