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US-118 series

Features: high reliability, vibration control spring (B type), minute current thermostat (C type)

Application: Bath boiler, water heater, gas appliance, outboard motor, etc.

Introduction

① Thermostat Specifications
Electrical ratings	B type : 125 VAC, max. 3A, resistance load ‐‐　（min. 200mA） C type : 24VDC, max. 1A, resistance load C type : 40VDC, max. 500mA ‐‐　（MIN. DC5V　1mA）
Ⅰ.Temperature setting range Ⅱ.Temperature tolerance Ⅲ.Differential	Ⅰ.Temperature setting range ①　 0 ～ 50℃ ②　51 ～ 100℃ ③ 101 ～ 150℃ ④ 151 ～ 190℃ ⑤ 191 ～ 250℃	Ⅱ.Temperature tolerance ①　±4℃/±5℃ ②　±4℃/±6℃ ③　±5℃/±7℃ ④　±6℃/±8℃ ⑤　±8℃/±10℃	Ⅲ.Differential ①　15K ②　15K ③　20K ④　25K ⑤　30K
Circuit resistance(initial value)	B type:　 70mΩ or less C type:　 10mΩ or less
Insulation resistance	100MΩ以上 100 MΩ or greater [through the 500 VDC megger]
Withstand voltage	B type: 1,200 VAC/minute C type: 1,000 VAC/minute
Thermal resistance	250℃
Cold resistance	-20℃
Opening-closing durability	10,000 times or more [under rated load]

※Please contact specification of the approved models are slightly different from those shown above.

② Model code

US-118	□	□	□	□	□
	1	2	3	4	5

Contact material

Ag alloy contact
Au crossbar contact

Contact model

“OFF” for temperature rise
“ON” for temperature rise

Terminal angle

B type H:For soldering[with a hole of φ 2.0]
C type P:Pin terminal
C type W:For welding
C type I : For soldering[with a hole of φ 2.5]

Holder model

M : Surface type
L : Surface type
I : Embedded type
K : Embedded type
O : Without holder

CAttached terminal mode
(Terminal model : P only)

A : Attached
No symbol : None

③ Sample of Model code

· US-118BXHO　・・・　Ag alloy contact,For soldering,Without holder

· US-118BXHL　・・・　Ag alloy contact,For soldering,Surface type

· US-118CXPO　・・・　Au crossbar contact.Pin terminal,Without holder

· US-118CXWL　・・・　Au crossbar contact,For welding,Surface type

· US-118CXIM　・・・　Au crossbar contact,For soldering,Surface type

· US-118CXIKA　・・・　Au crossbar contact,For soldering,Embedded type、CAttached terminal

④ List of international safety standards

⑤ Dimensional outline drawing

　◆More detailed image → Click the image

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