Page 16 - WENZHOU ZHUOCHAO ELECTRIC CO.,LTD.

Product model and meaning
SZW25 - □ □ □ / □

Contact system section number
Operation chart serial number
Enterprise code
Specification code (Conventional free air heating current)
Panel code
Enterprise code

Technical parameters Normal operating conditions
1.Ambient air temperature does not exceed +40℃ , and average
Model and specification SZW25
temperature within 24 hours does not exceed +35℃ ;
Rated insulation voltage Ui V 500
2.Lower limit of ambient air temperature does not exceed -5℃ ;
Conventional heating current Ith A 25 3.The altitude of installation site does not exceed 2000m;
4.When maximum temperature is +40℃ , air relative humidity
Rated operating voltage Ue V 220 380
does not exceed 50%, higher relative humidity is allowed at a
Rated operating currentIe lower temperature. For example, relative humidity reaches 90%
in time of 20℃ . It’s required to adopt special measures on
AC-15 A 12
the dew condensates that occasionally form due to temperature
AC-3 A changes.
DC-13 A 0.27
AC-21 A

External dimension and Installation dimension(mm)
1-5（ Thickness of mounting panel）
> SZW25-64D/ 48
4.5
42
64
Φ8 48
L=37+12n
64
Note: L= size of 1 section N denotes contact system plus section number

External dimension(mm) Installation dimension(mm)
Model and specification
A B C L E F D1 D2
SZW25-64D 64 64 42 37+12n 48 48 Φ8 Φ4.5

1-5（ Thickness of mounting panel）
> SZW25-48D/ □·R01 36 4Φ-4.5
（Special-purpose
variable speed 48 42
switch for Φ8 36
tobacco drier）
L=37+12n
48
Note: L= size of 1 section N denotes contact system plus section number

External dimension(mm) Installation dimension(mm)
Model and specification
A B C L E F D1 D2
SZW25-48D/ □·R01 48 48 42 37+12n 36 36 Φ8 Φ4.5

P 12