Injection Moulding Machine for RCCB Housings
RCCB housings are made on horizontal injection moulding machines from glass-filled PA66 or PBT, and from DMC or BMC thermoset where higher dielectric strength is specified. Case size, pole count and cavities set the machine. Dimensional match between the two case halves matters most, since drift between them is a usual cause of failed trip tests.
Machine selection for an RCCB case looks at repeatable fill of thin ribs and walls that carry creepage distances, plus glass-fibre wear protection. Pratishna Engineers supplies horizontal injection moulding machines for thermoplastic RCCB housings, builds special purpose machines to application for thermoset, and can recommend a configuration.
Manufacturing RCCB Housings?
Share both case halves, the grade and pole count, and Pratishna Engineers will recommend a machine.
Machine Requirements for RCCB Housing Moulding
An RCCB case holds a toroidal core and electronics, and its insulation distances are moulded into the part. Look for:
- Creepage ribs and barriers that fill fully, with no short shots
- Matched shrinkage between the two case halves
- Core seat and board guides held to tight dimensions
- Screw and barrel built for glass-filled PA66 and PBT
- Dried material so splay and voids stay out of thin walls
- Clamp margin for wide four-pole case moulds
Recommended Machine for RCCB Housings
Two-pole case halves and covers in multi-cavity moulds usually fit the E Series (75-180 T). Four-pole cases, which are wider and deeper, often need a larger platen: C Series (140-320 T) for most, H Series (120-350 T) where the mould is deep. DMC and BMC case halves call for a stuffer-fed thermoset machine, built to application as a special purpose machine.
Not Sure Which Machine You Need?
Send your RCCB case drawings and pole range for a machine proposal.
Why Choose Pratishna Engineers?
- Application-Based Machine Selection
- In-House Engineering & Manufacturing
- Multiple Machine Series
- Production-Focused Solutions
- End-to-End Technical Support
- Industry-Specific Solutions
- Machine Lifecycle Support
Injection Moulding Machine Buyer Resources
Download practical resources to help you select, size and specify the right machine.
Horizontal Injection Moulding Machine Selection Guide
A step-by-step guide covering the key inputs needed to select the right machine: product weight, projected area, number of cavities, plastic material, required clamping force, shot / injection capacity, mould dimensions, production quantity, cycle time and automation requirement.
Download PDFPDF · 265 KB
How to Calculate Clamping Force for an Injection Moulding Machine
A clear methodology that explains how clamping force is calculated, covering projected area, injection pressure, safety factor, number of cavities and material considerations.
Download PDFPDF · 363 KBElectrical & Electronics Components & Machine Guide
A guide to Electrical & Electronics components, covering switches, sockets, MCB and RCCB housings, plug tops, meter boxes, solar connectors and electronic housings. It explains flame-retardant and glass-filled grades, thermoset parts, dimensional control, and how to match each part to a suitable machine.
Download PDFPDF · 202 KB
FAQs / Buyer Questions
Common questions from RCCB makers planning case and cover tools.
Which Injection Moulding Machine Is Used to Make RCCB Housings?
Thermoplastic two-pole cases tend to sit on the E Series, while four-pole cases and family tools for case and cover go on the C or H Series. Thermoset DMC cases need a special purpose machine built to application.Why Are Creepage and Clearance Distances a Moulding Issue?
In an RCCB the insulating ribs, walls and barriers between live parts are part of the case, not added later. A short shot on a thin barrier or a sink near it reduces the distance, so fill and packing are checked on those features.How Do Case Halves Stay Matched in Production?
Moulders often run both halves from one grade lot, with shrinkage tested on conditioned parts and the process locked. Cavity steel is corrected against measured halves, since small drift can upset the mechanism and the trip test.
Should RCCB Housings Use Thermoset or Glass-Filled Nylon?
Glass-polyester and DMC give high dielectric strength and fire containment for a safety housing. Glass-filled PA66 or PBT moulds faster and allows regrind. The breaker rating and customer spec decide which is used.Can Pratishna Recommend a Machine for My RCCB Housing?
Yes. Share the case and cover drawings or samples, grade, pole range, part weights, mould size and production target, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Switchgear Parts Too?
Yes, subject to the mould. Similar machines run MCB housings, distribution board enclosures, contactor and relay housings, and smart meter enclosures.
Technical Disclaimer
Disclaimer: The information provided in this webpage is for general informational and educational purposes only. It is based on technical references and industry information available at the time of preparation and may be subject to change. It does not constitute engineering, technical, commercial or professional advice, nor does it constitute a quotation, specification, warranty or contractual commitment by Pratishna Engineers.
Actual injection moulding machine and process requirements vary according to the component design, material, mould, production volume, machine configuration and operating conditions. The information, examples, calculations and recommendations provided should be independently evaluated and verified for the specific application before making any equipment, process or production decision. Information obtained from third-party sources remains subject to the accuracy and limitations of those sources.
Limitation of Liability: Pratishna Engineers makes no representation or warranty, express or implied, regarding the completeness, accuracy or suitability of the information for any particular application. To the extent permitted by applicable law, Pratishna Engineers shall not be liable for any loss, damage, cost or consequence arising from reliance on or use of the information contained in this webpage. Final machine selection, configuration and application suitability should be confirmed with Pratishna Engineers based on complete and accurate project requirements.
Talk to Our Engineers
Planning a New Injection Moulding Project?
Share your component, material, mould and production target. Our engineering team will help you identify the right machine configuration.
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