Application
Bimetal thermometers used in electrical contacts on the production site to be automatic temperature control and alarm. Direct measurement of a variety of production processes within -80 ~ 500 ℃ body temperature of the steam and gases。

Characteristics
· The scene shows the temperature, easy and intuitive；
· With automatic cut off power and alarm functions；
· Safe, reliable, long life；
· A variety of structural forms, to meet different needs。

Works
Electrical contacts is the use of bimetallic thermometer temperature changes when the drive contact, when contact with the upper and lower limits or disconnected while the circuit in the relay, which automatically control and alarm。

Main technical parameters
· Product performance standards: JB/T8803-1998 GB3836-83
· Dial nominal diameter：100
· Accuracy：（1.0），1.5
· Thermal response time：≤40S
· Protection：IP55
· Normal atmospheric conditions: temperature -25 ~ +55 ℃, relative humidity≤85%
· Set point error: Set point error should not exceed 1.5 times the basic error limit。
· Switching difference: switching difference should not exceed 1.5 times the basic error limit。
· Switch repeatability: repeatability limit switch basic error limit the scope of the absolute value of not more than 1 / 2。

Electrical parameters

Rated powerVA Maximum working voltageV Maximum allowable current 10 220 a.c 0.7A 24 d.c

Selection coding

Type designation WSS   Bimetal thermometer X Electrical contact structure Nominal diameter of the dial -4/5   Φ100/ф150 Dial form 0   Axial（Straight） 1   Radial（Angle） 8   Universal (adjustable angle） Installation of a fixed form 0   No fixed device 1   Movable external thread 2   Moving the thread 3   Fixed thread 4   Mounting flange 5   Card sets of thread 6   Sleeve flange Forms of protection M   Upper and lower limits N   Double limit P   Double limit

Notes：

Selection Information: Please provide the model number, dial diameter, precision grade, installation of fixed form, temperature range, protection tube material, length or insertion depth。

Selection example: universal type, dial diameter Φ100, temperature range of 0 ~ 400 ℃, 1.5 level, activities, thread M27 × 2, length 450mm

WSSX-481， 0～400℃，L=450， M27×2，1.5

Models and specifications

Model Temperature range Accuracy Protection tube material Specifications Installation of fixtures WSSX-400/500 -80～+40 -40～+80 0～50 0～100 0～150 0～200 0～300 0～400 0～500 1.5 1Cr18Ni9Ti 304 316 316L 哈氏C-276 75 100 150 200 300 400 500 750 1000 No fixed device WSSX-401/501 WSSX-480/580 WSSX-401/501 Movable external thread WSSX-411/511 WSSX-481/581 WSSX-402/502 Moving the thread WSSX-412/512 WSSX-482/583 WSSX-403/503 Fixed thread WSSX-413/513 WSSX-483/583 WSSX-404/504 Mounting flange WSSX-414/514 WSSX-484/584 WSSX-405/585 Card sets of thread WSSX-415/515 WSSX-485/585 WSSX-406/506 Sleeve flange WSSX-416/516 WSSX-486/586

Note: special form can be ordered under the agreement。

Wiring electrical contacts