Frequently Asked Questions About Solenoid Coils

Need a solenoid coil? Hydraforce and Deltrol, two of the leading solenoid coil manufacturers, are both available at Summit Hydraulics. Before you pick a solenoid coil, you must first evaluate what you need.

  1. Coil Size
  2. Voltage Amount
  3. Connection Type
  4. Body Type
  5. Diode Inclusion

These five questions will help make it clear what solenoid coil is best for you.

You need to first evaluate how big of a solenoid coil you require. There are three different hole diameters and lengths you may require. A 1/2” diameter hole and a 1.5” long body is identified by our “08 Series” of solenoid coils. If this is too small, the middle size 5/8” hole diameter and 2” long “10 Series” is also available. If this still isn’t what you’re looking for, the “12 Series” 3/4“ hole diameter solenoid coil, measuring 3” long, is the largest type we offer.

It is crucial to get the proper voltage for your application. Our solenoid coils either use DC or AC power. DC power means that there is a “direct current”, which means that the electric charge only flows in one direction. AC power represents an “alternating current”, so the current can change directions as needed. Most commonly, you will need a 12V DC or 24V DC solenoid coil. A 115V AC coil is more uncommon, but available. We also carry rare voltage solenoid coils, like 24V AC or a 120V AC.

We offer many different kinds of connections depending on your preference. You can choose between seven connection types: 2 spade, 18” wire leads, 3 Prong DIN, Weatherpack (Delphi), Deutsch DT-06, Metri-Pack 150, and a threaded stud. 18” wire leads are our most popular connection type, are easy to install and function reliably. The 3 Prong DIN or 2 spade both connect easily, have excellent insulation and install with simple tools. For an easy connection, a threaded stud works well once you screw it in. A Weatherpack (Delphi) connector, appropriately named, provides an environmentally sealed connection and can withstand extreme temperature, moisture and chemicals. For durable, long-term use, the Metri-Pack 150’s sealed housing helps keep the elements out of your connection. The Deutsch DT-06 connection is the most premium option, with a smaller, newer style and a highly weather-proof design. However, it requires specific tools and steps for installation.

There are two different types of substances that our solenoid coils are made out of. The D Coil uses a black finished polymer resin construction. This solenoid coil serves its purpose well and is a cost-effective option. A more premium option is the E Coil with its natural finished aluminum build. This provides you with a stronger coil that can handle a lot of abuse.

Our solenoid coils either come with a Zener diode or without one. This special diode allows your current to flow backwards. This helps protect the circuits from voltage spikes that could damage your equipment. If you are looking for a replacement solenoid coil, then you will want a coil with a Zener diode if you previously used one.