Temperature Switches

We offer a complete product range of Indicating Temperature Switch and Flameproof Indicating Temperature Switch

Indicating Temperature Switch

Indicating temperature switch combines indication with switching (in order to make or break the associated electrical circuit). Can be offered with contact assembly as well as microswitch assembly (as a combination of switch and movement)

Features

Combination of indication and switchingFast responseChoice of contact assembly or microswitchSwitching accuracy 2%FSDHigh repeatability and low hysteresisCase compensated system

System	Mercury filled or Gas (N2) filled case compensated in accordance with SAMA C1. V B/IIIB
Dial	100mm or 150mm, white anodised, black markings
Case	SS304 / SS316 with bayonet bezel or Aluminium Case/Bezel (See note)
Protection	Weatherproof to IP - 67 (IS/IEC 60529:2001)
Window	Acrylic
Pointer	Aluminium, black
Stem	SS304 or SS316, 6mm, 8mm,10mm,12mm
Connection	1/2" NPT (M) adjustable three piece compression fitting as standard
Capillary	1/2" NPT (M) adjustable three piece compression fitting as standard
Capillary Covering	SS Solid drawn SS covered or SS armoured or SS covered with PVC up to 10 Mtrs for Mercury Filled and 25 Mtrs for Gas Filled.
Range	(-) 40°C to 600°C with a minimum span 50°C for mercury filled temperature switch / (-)200 to 600°C or upto 0-800°C for gas filled temperature switch (minimum span 80°C)
Accuracy	± 1% FSD for indication, ± 2% FSD for switching
Over range	125% FSD as standard (130% FSD on request upto 500°C)
Contacts	1) 1 SPST, single, normally open, closed on rise in temperature or vice versa, rated 30 VA @230V AC 2) 2 SPST, two contacts, independently adjustable, one normally open other normally closed or both normally open or both normally closed, rated 30VA @ 230 V AC 3) 1 SPDT, single microswitch, adjustable over entire range, rated 5 amp @ 230 V AC (3A @ 28 VDC) 4) 2 SPDT, double microswitch, adjustable over entire range, rated 5 amp @ 230 V AC (3A @ 28 VDC)
Accessory	Relay for the contact assembly to suit 5 amp @ 230 V AC, separately mounted.
Note	1) 2 SPDT only in 150mm dial size. 2) SPDT contacts in SS case only 3) SPST contacts in Aluminium Case only 4) For minimum immersion length essential for proper sensing, contact our design department.
Advantages of Microswitch Type Models	1) Microswitch is rated 5 amp @ 230 V AC (3A @ 28 VDC). No relay is required. 2) Microswitch assembly is imported, having combination of movement and switch. 3) Microswitch assembly gives better switching accuracy. Compact design.

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Flameproof Indicating Temperature Switch

Flameproof Indicating temperature switch combines indication with switching (in order to make or break the associated electrical circuit). Can be offered with microswitch assembly (as a combination of switch and movement)

Features

Combination of indication and switchingFast responseSwitching accuracy 2% FSDHigh repeatability and low hysteresisFlameproof housingCase compensated system

System	Mercury filled or Gas (N2) filled case compensated in accordance with SAMA C1. V B/IIIB
Dial	100mm (Internal), white anodised, black markings
Housing	Flameproof to IIA IIB (Equivalent to NEC C1. I Div 2 Gr. C & D)
Housing Material	Aluminium LM 6
Dimensions	230mm x 255mm
Window	Toughened Glass
Stem	SS304 or SS316, 6mm, 8mm,10mm,12mm
Connection	1/2" NPT (M) adjustable three piece compression fitting as standard
Capillary	SS Solid drawn
Capillary Covering	SS covered or SS armoured or SS covered with PVC up to 10 Mtrs. For Mercury filled and 25 Mtrs for Gas filled.
Range	((-) 40°C to 600°C with a minimum span 50°C for mercury filled temperature switch / (-) 200 to 600°C for gas filled temperature switch (minimum span 80°C)
Accuracy	± 1% FSD for indication, ± 2% FSD for switching
Over range	125% FSD as standard (130% FSD on request upto 500°C)
Contacts	1) 1SPDT, single microswitch, adjustable over entire range, rated 5 amp @ 230 V AC (3A @ 28 VDC) 2) 2 SPDT, double microswitch, adjustable over entire range, rated 5 amp @ 230 V AC (3A @ 28 VDC)
Note	1) Surface mounted flameproof housing is available with capillary. 2) Flameproof (conforming to IIC) version also available with microswitch. 3) For minimum immersion length essential for proper sensing, contact our design department
Advantages of Microswitch Type Models	1) Microswitch is rated 5 amp @ 230 V AC (3A @ 28 VDC). No relay is required 2) Microswitch is imported from reputed international supplier as combination of movement and switch. 3) Microswitch assembly gives better switching accuracy. Compact design.