Panasonic ABV BV Product Catalog page 11

Notes for Turquoise Switches (BJ, BS, BV type)
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 7 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.
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
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
IP
ー 10 ー
ㅡLevel of protection indicated by the 1st Characteristics number
1st
Characteristics Protection level (IEC60529/Solid matter)
number
0 No protection
1 Protected against solid matter larger than 50 mm
2 Protected against solid matter larger than 12 mm
3 Protected against solid matter larger than 2.5 mm
4 Protected against solid matter larger than 1.0 mm
Dust-protected type
5 Prevents dust that is large enough to have an effect
on operation from getting inside the unit
Dust-resistant type
6
Prevents dust from getting inside the unit
ㅡ Level of protection indicated by the 2nd Characteristics number
2nd
JIS C 0920 Characteristics
number
0
Droplet-protected
1
type I
Droplet-protected
2
type II
Rain-protected
3
type
Splash-protected
4
type
Spray-protected
5
type
Water-resistant
6
type
Immersion-
7
protected type
8
Underwater type
Note: Details of test conditions are the same as NECA C 0920.
Please refer to them.
Panasonic Industry Co., Ltd. 2022
Protection level (IEC60529/Liquid matter)
No protection
Protected against water droplets that
fall perpendicular to the unit
Protected against water droplets that
fall from within 15° of perpendicular
to the unit
Protected against water droplets that
fall from within 60° of perpendicular
to the unit
Protected against water that
splashes on the unit from any
direction
Free from adverse effects even if
sprayed directly with water from any
direction
Protected against water sprayed
directly on the unit from any direction
Water does not get inside of the unit
when submerged in water according
to the specified conditions
Unit can be used underwater
AECTB35E 202204