Castel 9300 Series Solenoid Valve Coil
The Castel 9300 series coil is a robust electromagnetic coil designed for use with Castel normally-closed (NC) solenoid valves in refrigeration, HVAC (heating, ventilation & air-conditioning), air-conditioning, industrial fluid control, and cooling system applications. The series replaces older coils from the 9100/HM2 family, offering improved performance and modern “FAST LOCK” mounting technology.
📌 Model Example: 9300/RA2 (HF2) — a widely used version in the series.
⚙️ Technical Description
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Type: HF2-type solenoid coil
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Series: 9300 (Model 9300/RA2)
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Operating Voltage: 24 VAC (50/60 Hz) — common for refrigeration and control circuits.
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Power Consumption: 8 W (~0.42 A at 24 V AC).
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Duty Rating: Continuous duty (HF2) — suitable for valves that remain energised for long periods.
🛠️ Construction & Materials
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Fast Lock System: Uses Castel’s patented FAST LOCK fixing system for secure mounting on valves and ease of assembly/disassembly.
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Connectors: Standard DIN 43650/A Fast-on terminals (2 power Fast-on + 1 ground Fast-on) for reliable electrical connection.
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Insulation: Class H insulation (IEC standard 85) for thermal endurance up to 180°C.
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Housing Protection: Resin-encapsulated coil body with IP65-rated protection against dust and water ingress (when combined with an appropriate connector).
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Windings: Enamelled copper wire for effective magnetic field generation and durability.
📍 Performance & Compatibility
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Wide Range of Supply Voltages: The same 9300 series is available in various voltages (24 VAC, 110 VAC, 220/230 VAC, 380 VAC, and DC versions) to fit different systems.
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Interchangeable: The 9300 series coils are direct replacements for older 9100 and HM2 series coils on Castel valves, improving serviceability.
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Valve Fitment: Designed for use with a variety of Castel NC solenoid valves — including models like 1020, 1028, 1050, 1058, 1059, 1064, 1068, 1070, 1078 and others (when specified with coil).
📊 Key Features Summary
| Specification | Description |
|---|---|
| Coil Series | Castel 9300 |
| Model Example | 9300/RA2 |
| Type/Duty | HF2 – continuous duty |
| Voltage | 24 VAC, 50/60 Hz |
| Power | 8 W (~420 mA) |
| Protection | IP65 housing |
| Connector | DIN 43650/A Fast-on |
| Insulation Class | Class H, high thermal tolerance |
| Compatibility | Replaces older 9100/HM2 coils; fits many Castel solenoid valves |
📦 Typical Use Cases
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Refrigeration systems (chillers, commercial coolers)
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HVAC control valves
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Air-conditioning units
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Industrial fluid control where valve actuation depends on magnetic coils
