Mechanical Temperature Switch AT540-7 Series

Mechanical Temperature Switch
Model: AT540-7 Series

Introduction
AT540-7T/7TK Mechanical temperature switch is suitable for neutral media measurement with adjustable set point range -20 to 70℃.

Features
■ OEM service
■ Fixed/adjustable/narrow fixed dead band types are available for wide applications
■ Adjustable set point range -20 to 70℃
■ Adopt SPDT micro switch
■ Protection level IP65

Main Specifications
▼Type
AT540-7T (Typical)
AT540-7TK (Narrow Dead Band)
▼Process connection
Nickel-plated copper／SS304 (option)
▼Adjustable set point range
-20 to +30°C
0 to +50°C
+20 to +70°C
▼Dead band
Fixed/Adjustable/Narrow fixed dead band
For detail please refer to adjustable set point range table
▼Applicable fluid
Neutral liquid and gas
▼Ambient temperature
-25 to +30/+50/+70°C (refer to max set point range)
▼Vibration resistance
AT540-7T: Max. 40m/s²
AT540-7TK: Max. 20m/s²
▼Protection level
IP65

Other Specifications
▼Installation
Bottom mount／Wall mount with support rack (option)
▼Case
Die casting aluminum
▼Measuring elements
Encased temperature sensor
Filled with organic liquid
▼Switch type
SPDT micro switch
▼Repeatability
≤3%
▼Max media temperature
+85°C
▼Contact rating
AC220V, 6A (resistive load)
▼Service life
2×10⁵ cycles

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