Product
US-628
- General-purpose type
- Splash-proof type
- Round disc
Snapper, Snap-action
- Features
- Splash-proof, small and compact, general-purpose, low-cost type, non-ignition explosion-proof design
- Uses
- Water heaters, gas and oil-fired appliances, fuel cells, etc.
- Register
- Gas Inspection Association (JIA)-certified; UL and C-UL-certified. Explosion-proof rating: Ex nC IIC T3 Gc
Product photos
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Thermostat Specifications
| Electrical Rating (Resistive Load) | A type : AC125V MAX.10A（MIN.200mA） A type : AC250V MAX.5A（MIN.200mA） K type : DC24V MAX.1A（MIN. DC5V 1mA） K type : DC40V MAX.0.5A（MIN. DC5V 1mA） |
||
|---|---|---|---|
| Ⅰ.Temperature Setting Range Ⅱ.Temperature Setting Tolerance (Standard) Ⅲ.Differential diff (Standard) |
Ⅰ.Temperature Setting Range ①30 ～ 50℃ ②51 ～ 100℃ ③101 ～ 130℃ |
Ⅱ.Temperature Setting Tolerance (Standard) ①±4℃/±5℃ ②±4℃/±6℃ ③±5℃/±7℃ |
Ⅲ.diff (Standard) ①12K ②15K ③20K |
| Circuit Resistance (Initial Value) | A･K type : 70mΩ max. (varies depending on lead wire length) | ||
| Insulation Resistance | 100MΩ min. (with DC500V megohmmeter) | ||
| Dielectric Strength | A type : AC1500V / 1 min. K type : AC1200V / 1 min. |
||
| Heat Resistance | 130℃ | ||
| Cold Resistance | -20℃ | ||
| Switching Endurance | 10,000 cycles or more (at rated load) | ||
Please contact us separately regarding specifications that exceed these.
Thermostat Model Code
|
US-628 12345 -6 |
|
|---|---|
|
1Contact Material |
A :Ag alloy contact K : Au crossbar contact |
|
2Contact Type |
X : "OFF" when temperature rises *For Contact Type Y, please use the potting type of US-602. Please contact us for details. |
|
3Terminal Type |
S : Potting-dedicated terminal |
|
4O-ring Type |
S : Silicone rubber |
|
5Cover Material Holder Type |
AS : Stainless steel, Surface type (mounting dimension 24mm) AT : Stainless steel, Surface type (mounting dimension 24.5～26mm) JO : Stainless steel, Integrated recessed type (depth 5.2㎜ mounting pitch 24.5mm) |
|
6Lead Wire Material |
F : Fluororesin wire (heat-resistant temperature 180℃) [Standard: White, 0.5㎟, length 100mm] V : Heat-resistant lead-free PVC wire (heat-resistant temperature 105℃) [Standard: Black, 0.5㎟, length 100mm] |
Model Examples
-
US-628AXSSAS
Stainless Steel Cover, Fixed Surface-Mounted holder pitch 24 mm
-
US-628KXSSJO
Stainless Steel Cover, Air Stream Mounted pitch 24.5 mm
List of International Safety Standards and Certification Specifications
| Model Name | Certification Name | File No. | Maximum temperature rating [°C] | Control Method | Cycle | Voltage [V] | Resistive load | Inductive load | FLA | LRA |
|---|---|---|---|---|---|---|---|---|---|---|
| US-628A | UL C-UL | E52529 | 150 | regulating | 30,000 | AC 125 | 10 | – | – | – |
| AC 250 | 5 | – | – | – | ||||||
| 150 | DC 24 | 5 | – | – | – | |||||
| DC 40 | 0.5 | – | – | – | ||||||
| US-628K | 150 | regulating | 30,000 | DC 30 | 1 | – | – | – | ||
| DC 40 | 0.5 | – | – | – | ||||||
| US-628KXSSJO | TUV | R50426757 | 150 | thermostat | 30,000 | DC24 | 1 | – | – | – |
| DC40 | 0.5 | – | – | – |
Thermostat Dimensions
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Product index
- Product list
- List by Purpose
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Product type
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General-purpose type
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High-temperature type
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Manual reset type
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One-shot type
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Splash-proof and sealed type
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Flat type
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Small-sized, for printed circuit boards
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Temperature controlling type
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