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Universal Dual Frog Juicer - Automatic Frog Polarity Switcher


7 In Stock

Additional Stock: 3 to 5 days

We can ship the DFJ003U immediately. If you order more than what we have available, we will hold your order until we have enough stock to ship your complete order.

PRICE : $39.95

7 in stock

The Universal Dual Frog Juicer automatically and instantly switches the polarity of the frog as an engine passes over any DCC powered turnout. No more complicated wiring or electro-mechanical switches are needed. Instead, you connect power to the Frog Juicer and a single wire to the frog. The Frog Juicer takes care of the rest!

The New Universal Dual Frog Juicer works with all DCC systems, including NCE PowerCab!

Each Dual Frog Juicer can control the polarity of DCC power for two frogs, a reversing loop, a turntable, a wye, or a crossing. It can also be used as a circuit breaker to control a power district (with a bonus, it will reverse polarity if needed).

It uses the same basic design as the hex frog juicer but has 33 Amp transistors so that it can be used with multi-unit lashups and 10 Amp boosters.

The setup is simple: connect the input to the DCC track bus, and connect the output wires to two frogs or rails.

  • Eliminates the need for mechanical switches to switch the frog polarity when the turnout is switched
  • Instant switching means no interruption to the engine or loss of sound
  • Significantly simplifies frog wiring - especially for crossings and double crossovers
  • Compatible with any DCC system (Sorry, it will not work with DC)
  • Simple to connect

If you have ever struggled wiring up the frogs on a switch, seriously consider using the Hex Frog Juicer. It is simple to use and just plain works.

How The Dual Frog Juicer Works

The Frog Juicer consists of two microprocessor controlled SPDT electronic switches. Each switch can sense and control the polarity of one frog. A jumper controls whether the two outputs act as a pair (i.e., an auto-reverser) or independently (i.e., a pair of frog juicers).

Another pair of jumpers controls the current set point for switching, either 2 Amps or 4 Amps. When used for frogs or crossings, generally, 2 Amps work best, and 4 Amps typically work best for an auto-reversing application. The frogs must be electrically isolated and have no other connections to the track or DCC system.

8 reviews for Universal Dual Frog Juicer - Automatic Frog Polarity Switcher

  1. 5 out of 5

    Richard Rizza (verified owner)

    The product arrived on time to quoted schedule. It was easy to install and works well.

  2. 5 out of 5

    Robert Kipp (verified owner)

    Great product, works great with no delay. I run HOn3 and with their short wheelbase, they run perfect through turnouts.

  3. 5 out of 5

    Alan Mueller (verified owner)

    This makes running through reversing loops and turning locomotives on turntables absolutely invisible, electronically. FAR superior to the comparable Digitrax product !

  4. 5 out of 5

    Sven De Fruyt (verified owner)

    Works as advertised, works perfectly with my NCE power cab, easy instalment!

  5. 5 out of 5

    Francis H. Mcarthur (verified owner)

    I have purchased two of these juicers with intent to use them on HO FREEMO reversing loops. Impressed with the theory, looking forward to the results.

  6. 5 out of 5

    Mike Smith (verified owner)

    Works totally invisibly - if it wasn't for the led's changing colour, would never know it was doing its thing. Used this on a crossing with electrofrogs - no break in sound, no hesitation. Perfect.

  7. 5 out of 5

    Doug Wickson (verified owner)

    They took just minutes to install and worked as described. I will be getting more in the future. These saved a lot of headaches at the powered frogs.

  8. 5 out of 5

    Nick Vanwyngaarden (verified owner)

    Great service fast delivery product works exactly as advertised very pleased

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