Solenoid Coils

Features and Benefits

Maximum Power - Minimum Space

Perfectly layered wound coil packs more copper into smaller space. Perfect winding eliminates crossed wires and the potential for short-circuits. More copper windings ensure maximum solenoid force per current input.

Continuous High Temperature Operation

All HYDAC coils use high quality ‘Class N’ wire to ensure that coils can be continuously operated in extreme high temperatures and over-voltage without failure.

Resistance to Thermal Shock

HYDAC coils have passed what are commonly referred to as ‘thermal shock dunk tests’. This involves heating the coil to an extreme temperature for a period of time, then immersing in very cold salt water. The cycle is repeated and coil operation checked for signs of degradation.

All Weather Resistant

Encapsulated and internally sealed, the rugged steel shell construction prevents ingress of water. HYDAC coils have passed numerous ‘salt-spray tests’. No external sealing or waterproofing kits are needed.

IP Rated

HYDAC coils are rated from IP65 to IP69K. The quality of connector selected determines the IP rating. Deutsch DT04-2P achieves IP69K, while a DIN 43650 interface achieves IP65.

Physically Robust

Thick steel shell protects coil from physical damage. Zinc plating protects the shell from corrosion.

Coils are DC wound

All HYDAC coils are DC wound. AC designated coils from size 8, 10, 12, and 16 valves are internally full wave rectified. This results in a more reliable coil since inrush cycles are eliminated. There is no ‘buzz’ or ‘hum’ normally associated with ‘true AC’ coils. AC coils can operate on 50-60Hz supply. DC and AC coils are fully interchangeable. Coils for size 6 cartridges do not have built-in rectifiers and require external rectificatons of the AC signals.

Suppression Diodes

DC coils are available with an internal, bi-directional, transient voltage suppression diode. This can help protect the end users control circuit from induction voltages. Using a bi-directional diode means the coil is not polarity sensitive.

Symmetric Coil Construction

HYDAC coils can be installed face up or face down on the valve with no reduction in performance.

Note: UL 583 listed coils available. Consult factory.