Solenoid Coils
Solenoid Coils
Solenoid Coils are electromechanical components that convert electrical energy into linear mechanical motion. When energized, the coil generates a magnetic field that actuates a plunger or armature, creating a controlled movement. They are widely used in valves, actuators, relays, locks, and automation systems, where precise on/off control is required.
Solenoid coils are designed to operate under AC or DC voltages, with optimized winding resistance and inductance to balance response time, power consumption, and thermal performance. Their construction typically includes copper or aluminum wire windings, a magnetic core, and insulation materials rated for high temperatures. Coils can be encapsulated in epoxy, thermoplastic, or metallic housings for enhanced durability, protection, and environmental resistance.
Solenoid Coils – Technical Specification
| Category | Specification |
|---|---|
| General Description | Electromagnetic coil producing magnetic force to actuate plungers/armatures in valves, actuators, and relays. |
| Standards & Compliance | IEC 60204 (Electrical Equipment Safety), IEC 60085 (Insulation), CE / UL certified |
| Operating Voltage | AC: 12 V / 24 V / 110 V / 230 V / 415 V DC: 12 V / 24 V / 48 V / 110 V / 220 V |
| Frequency (AC Coils) | 50 Hz / 60 Hz |
| Power Consumption | Typically 5 W – 100 W (depending on size and duty) |
| Duty Cycle | 100% ED (continuous) or Intermittent (10–50% ED) |
| Insulation Class | Class F (155°C) / Class H (180°C) |
| Coil Resistance | Designed as per rated voltage (varies with design) |
| Response Time | 10 – 200 ms (application dependent) |
| Enclosure / Housing | Epoxy molded, thermoplastic, or metallic casing |
| Connection Type | Flying leads, DIN connector, terminal block, or plug-in type |
| Cooling | Natural air convection |
| Ingress Protection | IP00 (open type), IP20, IP40, IP65, IP67 (encapsulated versions) |
| Environmental Limits | Temperature: –25 °C to +55 °C Humidity: ≤ 95% RH (non-condensing) |
| Applications | – Hydraulic & pneumatic valve actuation – Locking/unlocking systems – Relays & contactors – Automotive actuators – Industrial automation & robotics |