說明(Instruction)
BR/ TH-B型系列熱保護器,廣泛用于工業(yè)、家用電器的塑料電機及電氣設備,防止因過流、過熱而產生的非正常工作提供有效可靠的安全保護。外殼才采用耐高溫,熱傳導快的高強度PBT工程塑料制造,適用于塑封電機外置式安裝及家用電器的安全保護。
BR/TH-B series thermal protector are widely used in electric motors of industrial、household appliance & other electric equipment. The TH-B series can effectively and reliably guard against the damage caused by overflow and overheat. The shell is made from heat resistant and heat conductive PBT engineering plastic. The product is applicable to the externally installed plastic sealed motors and household electric appliance.
結構及保護原理(Configuration & principles)
BR/ TH-B型系列熱保護器是由導熱塑料外殼,焊有銀合金觸點的雙金屬元件、導電支架、絕緣固定座、靜觸片及耐熱導線等元件組成。電流通過有阻抗的雙金屬元件,遇非正常工作時,隨電流增大或周圍溫度升高至設定溫度值時,雙金屬元件迅速動作,打開觸點,切斷電路。當裝置冷卻到安全工作溫度時,觸點自動閉合,恢復正常工作狀態(tài)。
BR/TH-B series thermal protector is compised by heat conductive plastic shell, bimetal component welded silver alloy contact, current conductive frame, insulated fixing seat, static contant pad and heat resistant wires etc. When the current goes through the bimetal component with impedance, if the current increases or the environment temperature rises and the temperature reaches the preset value, the bimetal component will work and release the contact to shut off the circuit; and by contrast, if the device cools down to the temperature, the contact point will reset automatically.
說明:BR/TH系列均采用統(tǒng)一機芯,型號之分僅為外殼的外形尺寸不同。
Instruction:The BR/ TH Series Theory of every type is same, except for difference of caze size.
安裝及外形尺寸(Design Detail)
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產品型號 Type
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長 L
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寬 W
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高 H
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導線 Leads
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BR/TH-B2D
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15.0±0.4
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7.3±0.2
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3.9±0.1
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導線為AWG20#、22#硅膠線和AWG22#電子輻照線和鍍錫裸銅線,特殊要求可專業(yè)制造
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BR/Th-B3D
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18.0±0.4
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8.0±0.2
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4.0±0.1
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BR/Th-B4D
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21.0±0.4
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8.0±0.2
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4.0±0.1
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應用范圍(Appilications)
BR/TH-B型系列產品是對電流、溫度雙重敏感的熱保護器件,廣泛應用于塑封電機燈具、電池、真空清洗機、PC板以及變壓器等一般電器的過流保護和溫度控制。
BR/TH-B series protectors are double sensitive to current and temperature. The series are widely used for overheat protection and temperature control in electric motors, lights, batteries, vacuum cleaners, PC boards, transformers & ballast etc.
額定動作溫度對照表(According Table open temperature)
規(guī)格 Type
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動作溫度范圍
Open Temperature Range
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規(guī)格 Type
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動作溫度范圍
Open Temperature Range
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50℃
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50±5.0℃
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100℃
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100±5.0℃
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55℃
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55±5.0℃
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105℃
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105±5.0℃
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60℃
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60±5.0℃
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110℃
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110±5.0℃
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65℃
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65±5.0℃
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115℃
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115±5.0℃
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70℃
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70±5.0℃
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120℃
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120±5.0℃
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75℃
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75±5.0℃
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125℃
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125±5.0℃
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80℃
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80±5.0℃
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130℃
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130±5.0℃
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85℃
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85±5.0℃
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135℃
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135±5.0℃
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90℃
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90±5.0℃
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140℃
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140±5.0℃
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95℃
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95±5.0℃
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145℃
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145±5.0℃
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|
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150℃
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150±5.0℃
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說明:復位溫度為標準動作溫度值的2/3,公差為±15℃,或由用戶指定。
Instruction: Reseting temperature is 2/3 of standard opening temperature or specified by customers. it's tolerance is 15℃.
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