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Line Current Boosters

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    Telephone Line Current Booster, Number of Channels 1, 48VDC
    Results per page: 16 | 32 | 48

      A telephone line current booster augments available line current to an analog, two-wire bridged, ringing telephone line by an additional 30 mA. Boost a phone line with 20 mA of normal available line current to 50 mA with the addition of one of these booster circuits. Choose from single channel, four-channel and eight-channel current boosters. Heighten your commercial phone line’s power with a telephone line current booster from Grainger.

      Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More