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Model No
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Heatsoft SCR
(1)SFB：B-1Φ 1 leg Zero Crossing/Phase Angle
(2)SFD：D-3Φ 2 leg Zero Crossing
(3)SFF：F-3Φ 3 leg Zero Crossing
(4)SFG：G-3Φ 3 leg Phase Angle
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Main power supply voltage
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AC 110~500V
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Auxiliary supply
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(1)AC 110V±10%
(2)AC 220V±10%
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Rated current
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(1)SFB：025/038/055/075/115/160/250/350/560A
(2)SFD：012/032/055/080/115/160/225/320/480A
(3)SFF：010/018/038/068/115/160/225/320A
(4)SFG：010/018/038/068/115/160/225/320A
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Input signal
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All functions can be selected at will via DIP switch
。DC4~20mA 。DC1~5V。DC2~10V
。DC0~20mA 。DC0~5V。DC0~10V
Six input signals
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Features
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。Exquisite SF structure:the safest and the most convenient
。A Separate Design for FUSE and SCR
。Distributed Heat Sink
。Optional Screw-or Rail-Fixed Type
。All functions can be selected at will via DIP switch
。Controlled by cooling fan, to extend fan life for extra 50%~100%
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