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說(shuō)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(guò)流、過(guò)熱而產(chǎn)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(diǎn)的雙金屬元件、導電支架、絕緣固定座、靜觸片及耐熱導線(xiàn)等元件組成。電流通過(guò)有阻抗的雙金屬元件，遇非正常工作時(shí)，隨電流增大或周?chē)鷾囟壬咧猎O定溫度值時(shí)，雙金屬元件迅速動(dòng)作，打開(kāi)觸點(diǎn)，切斷電路。當裝置冷卻到安全工作溫度時(shí)，觸點(diǎn)自動(dòng)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(shuō)明：BR/TH系列均采用統一機芯，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(chǎn)品型號 Type
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長(cháng) L
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寬 W
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高 H
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導線(xiàn) 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(xiàn)為AWG20#、22#硅膠線(xiàn)和AWG22#電子輻照線(xiàn)和鍍錫裸銅線(xiàn)，特殊要求可專(zhuān)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(chǎn)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(guò)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(dòng)作溫度對照表(According Table open temperature)
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規格 Type
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動(dòng)作溫度范圍
Open Temperature Range
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規格 Type
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動(dòng)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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150℃
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150±5.0℃
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說(shuō)明：復位溫度為標準動(dòng)作溫度值的2/3,公差為±15℃，或由用戶(hù)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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