一、產品介紹

SRFT系列防跳繼電器用于各種保護和自動控制裝置中，增加保護和控制回路觸點數量和觸點容量。

本系列防跳繼電器為電子控制模擬繼電器，采用光耦隔離使密封中間繼電器動作。需要輔助電源。

(適用于交流50/60Hz)

SRFT series of anti-pump relays can be used in a variety of protection and automation devices toincrease the number and capacity of contactsin loop protection and control.As electronically controlled analogue relays, this type of relays adopts optical coupling ***lation to enable the sealed middle relays to act. Auxiliary power supplyis needed. (Are used in AC 50/60Hz)

二、技術參數

動作值Action Value:50%額定電壓值NominalVoltage

50%額定電流值NominalCurrent

保持值Maintain Value:電壓保持繞組Voltage keep winding:50%額定電壓NominalVoltage

電流保持繞組Current keep winding:50%額定電流 NominalCurren

返回值Return Values:50%額定值NominalValues

功耗PowerConsumption:電壓繞組Voltage keep:<1.2W

電流繞組Currentkeep:<2W

輔助電源Auxiliary power:<3W

熱穩定性ThermalStability:環境溫度+55°℃時，電壓繞組長時期承受110%額定電壓溫升不超過65°℃，電流繞組能長時間承受三倍額定電流

When the ambient temperature is above 55C, The temperature of the voltage winding does not exceed 65C at110% of the nominal

voltage for along time, and the current winding can sustain three times of the nominal current for along time.

觸點容量ContactCapacity:在電壓不大于250V時:觸點長期接通電流為5A;在電壓不大于250V時:電路時間常數L/R為5mS的直

流電路中，觸點斷開容量為50W;在電壓不大于250V時:功率因數COS6為0.4的交流電路中，觸點斷開容量為250VA。

When the voltage is less than 250V, the continuous current o f the contacts is 5A; When the voltage is less than 250Vand time

constant L/R is 5mSin the DC circuit, the switching capacity of the contacts is 50W;When the voltage is less than 250V and the

power factor COSpis 0.4 in the AC circuit, the switching capacity of the contacts is 250VA.

介質強度DielectricStrength:繼電器各引出端子與外殼之間，應能承受50Hz、2KV，歷時1分鐘耐壓試驗而無擊穿或閃絡現象

50Hz, 2Kv, 1 minute between each of the contactsand the casing, and no sign of breakdown or flashover is detected.

環境溫度AmbientTemperature:-25°C~55C

U型35導軌安裝Mounting On profile railType U 35

三、規格及型號

SRFT -1- 2H2D

   ①    ②    ③

①SRFT系列防跳繼電器 SRFTSeries of Anti-pump Relays

②分類編號Numbersfor Different Categories:

1、一個電壓繞組，一個電流繞組，均可作為工作繞組和保持繞組

2、一個電壓工作繞組，兩個電流保持繞組

3、一個電流工作繞組，一個電壓工作繞組，一個電流保持繞組，動作時間0.045秒以下。

4、一個電壓工作繞組，三個電流保持繞組。

1.One voltage winding and one current winding, both of which

can serve as operate and holding windings.

2.One voltage operate winding and two current holding windings.

3.One current operate winding, one voltage operate winding, one

current holding winding, and the acting time is less than 0.045s.

4.One voltage operate winding and three current holding windings.

③觸點形式ContactArrangement:2Z、2H2D

特殊型號:SRFT-1B為電壓啟動，電流保持繼電器。

四、接線圖

五、外形尺寸圖