Auto reset thermal switches

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Manufacturer : Microtherm
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A range of normally closed (opening on temperature rise), and normally open (closing on temperature rise) bi-metallic switches, which automatically reset within a close tolerance band.

Contacts are isolated from the mounting base
Connection is via ¼in (6.35 x 0.8mm) fast-on terminals
Switches are mounted via two screws through a rotating collar to assist with installation
UL, CSA and VDE approved

Product details Hints & Tips

Description	Code	RoHS	Datasheets	1+	25+		100+	250+

Manufacturer Part #: 54N111044(40/25) 40deg.c Norm Closed Therm Switch	26-7404			£1.38	£1.26		£1.08	£0.959	normally despatched 3-4 weeks Receive stock notification by text or email	Buy
						1+
Manufacturer Part #: 03EN151044(50/35) 50deg.c Norm Closed Therm Switch	26-7406			£1.27					In stock despatch same day	Buy
				1+	25+		100+	250+
Manufacturer Part #: 03EN15T044(70/55) 70deg.c Norm Closed Therm Switch	26-7414			£1.38	£1.26		£1.08	£0.959	In stock despatch same day	Buy
Manufacturer Part #: 03EN151044(80/65) 80deg.c Norm Closed Therm Switch	26-7416			£1.38	£1.26		£1.08	£0.959	In stock despatch same day	Buy
Manufacturer Part #: 03EN15T044(90/75) 90deg.c Norm Closed Therm Switch	26-7418			£2.37	£2.07		£1.84	£1.66	In stock despatch same day	Buy
Manufacturer Part #: 03EN151044(100/85) 100deg.c Norm Closed Therm Switch	26-7420			£1.38	£1.26		£1.08	£0.959	In stock despatch same day	Buy
Manufacturer Part #: 54N31T044(25/40) 40deg.c Norm Open Therm Switch	26-7410			£2.31	£2.02		£1.80	£1.62	In stock despatch same day	Buy
Manufacturer Part #: 03EN35T044(35/50) 50deg.c Norm Open Therm Switch	26-7422			£1.52	£1.40		£1.31	£1.23	In stock despatch same day	Buy
Manufacturer Part #: 03EN35T044(45/60) 60deg.c Norm Open Therm Switch	26-7424			£1.38	£1.26		£1.08	£0.959	normally despatched 3-4 weeks Receive stock notification by text or email	Buy
						1+
Manufacturer Part #: 03EN35T044(55/70) 70deg.c Norm Open Therm Switch	26-7426			£0.90					In stock despatch same day	Buy
				1+	25+		100+	250+
Manufacturer Part #: 03EN35T044(75/90) 90deg.c Norm Open Therm Switch	26-7430			£1.44	£1.28		£1.12	£1.01	In stock despatch same day	Buy

Technical Specification

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Type		½in disc insulated thermostat, SPST
Tolerance	Rise	±3°C
	Reset	±4°C
Insulation resistance		>1000MΩ @ 500V DC
Dielectric strength		1,500V AC for 1 minute
Contact resistance		<30mΩ
Rating		240V 10A AC, 120V 15A AC resistive/inductive
Operations		100,000,000 cycles
Dimensions		21 x 31 x 19mm
Fixing centres		24mm (M3 holes)

Normally closed
Opening temp	Closing temp	Order code
40°C	25°C	26-7404
50°C	35°C	26-7406
70°C	55°C	26-7414
80°C	65°C	26-7416
90°C	75°C	26-7418
100°C	85°C	26-7420

Normally open
Closing temp	Opening temp	Order code
40°C	25°C	26-7410
50°C	35°C	26-7422
60°C	45°C	26-7424
70°C	55°C	26-7426
90°C	70°C	26-7430

Questions

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Question by steve hobley | Product code: 26-7430

12th March 2012

QHello. I want to make an exhaust temperature alarm for a boat. Is this switch suitable for use in a 12v circuit? Thank you.

AHi Steve, thanks for your question. Is this the alarm project in the 'Practical Boat Owner' magazine? If so, the parts for the project are as follows: 26-7430 is the correct part for the 90 degree switch. The Push to test button is 78-0110 and the siren is 35-3538. We hope this helps.

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