Royal Cord vs THHN is mainly a choice between a flexible, sheathed cord and an individual building-wire conductor. Royal Cord is commonly used for portable equipment connections when its specific cord type permits the application. THHN is normally selected for fixed wiring in approved conduit or raceway. Choose by the installation method, complete cable marking and required ratings—not flexibility or price alone. “Royal Cord” is a market name, so buyers still need the actual cord designation before ordering.
Comparing products for an order? Start with our Royal Cord cable and THHN building wire options. Send the intended application, conductor size and quantity if you need help identifying which specifications to request.
Royal Cord vs THHN: Construction and Flexibility
The clearest difference is what surrounds the conductors.
A typical Royal Cord contains several insulated, finely stranded copper conductors inside a common outer sheath. THHN normally consists of one solid or stranded conductor, thermoplastic insulation and a nylon covering. The nylon layer on an individual wire does not perform the same role as the overall jacket of a multi-core cord.
| Comparison | Royal Cord | THHN building wire |
|---|---|---|
| Product identity | Market name; confirm the recognized cord type | Defined wire-type designation; check additional markings |
| Typical construction | Multiple insulated cores within an outer sheath | One insulated conductor with a nylon covering |
| Conductor arrangement | Commonly fine-stranded copper | Solid or stranded, depending on the product |
| Flexibility | Intended for cord applications appropriate to its construction | Flexibility may help installation; it does not establish a repeated-flex rating |
| Usual selection context | Portable equipment leads and suitable flexible connections | Fixed circuits in approved conduit, raceway or another permitted wiring system |
| Ordering description | Cord designation, number of cores, size per core and sheath requirements | Full wire designation, conductor size, construction and color |
KingForYou lists a PVC-insulated, PVC-sheathed Royal Cord construction and a PVC/nylon THHN construction. Confirm the order-specific data sheet and approval documents before applying any advertised property to a particular delivery. See the Royal Cord product details and THHN product details.
Stranded THHN is not automatically a flexible equipment cord
“Stranded” describes how the conductor is assembled. It does not establish that the finished wire can withstand continual movement, torsion, dragging or a specified number of bending cycles.
Likewise, a flexible Royal Cord should not be described as a continuous-flex cable without supporting data. For a moving machine connection, ask about the actual movement, bend radius, travel and expected service cycle before approving a cable.
Terminations need attention too. Ask the equipment or connector supplier whether its terminals accept the specified strand construction. A conductor that fits physically is not necessarily suitable for that terminal.
Royal Cord or THHN: Which Fits the Application?
Choose the wiring method before comparing cable prices. A fixed building circuit and the flexible lead feeding a movable appliance can form parts of the same installation while requiring different products.
The following matrix is a purchasing screen, not approval of a particular installation.
| Application | Product direction to evaluate | What the buyer must confirm |
|---|---|---|
| Fixed lighting or socket circuit in conduit | Correctly rated building wire, such as THHN or a suitably dual-rated product | Approved wiring method, complete designation, size and terminal requirements |
| Portable equipment power lead | A recognized flexible-cord construction sold as Royal Cord, if suitable | Cord designation, duty, core count, equipment requirements and strain relief |
| Extension-cord assembly | Cord and accessories approved for that assembly | Cable, plug and socket compatibility, protective conductor and assembly rating |
| Raceway classified as a wet location | Building wire with an appropriate wet-location designation | Do not rely on the word THHN alone; verify the additional rating |
| Outdoor movable connection | A specifically suitable outdoor flexible cord | Exposure conditions, movement, environmental ratings and compatible connections |
| Repeated machine movement or cable-chain service | Cable expressly evaluated for that movement | Flex-life evidence, bend radius, speed and torsion requirements |
| Direct burial | A cable and installation method specifically permitted for burial | Neither “Royal Cord” nor “THHN” alone establishes suitability |
For the wider choice among THW, NM cable and other local products, use our electrical wire guide for the Philippines. For the distinction between dry- and wet-location wire markings, see THHN vs THWN and THWN-2.
Can Royal Cord be used for house wiring?
Separate an appliance connection from the permanent wiring supplying it. A cord that is appropriate for the appliance lead should not be assumed acceptable as a substitute for fixed wiring through the building.
Before buying Royal Cord for house wiring, identify the exact connection and have the proposed cord type and wiring method checked against the applicable Philippine Electrical Code, equipment instructions and project approval requirements.
Not sure which product belongs on your cable schedule? Send your application for cable review. Include whether the connection is fixed or movable, the installation environment, required size and approximate quantity. If the designation is unclear, share the existing specification or wire-marking details.
Ratings and Markings to Check Before Ordering
A product name should lead to a verifiable specification. Ask the supplier to show how the quoted item, data sheet, sample marking and relevant certification record correspond.
For Royal Cord
Request the recognized cord designation, not just the trade name. Then confirm the number of cores, size of each conductor, insulation and sheath materials, voltage and temperature ratings, and any exposure-specific properties required by the application.
Do not assign one universal voltage, temperature or duty rating to every product called Royal Cord. A black jacket and a flexible feel are insufficient evidence of suitability for oil, sunlight, water exposure or demanding mechanical service.
For THHN
Read the complete printed designation. THHN, THHN/THWN and THHN/THWN-2 do not communicate identical environmental ratings. The presence of nylon alone does not establish all the properties needed for a wet, outdoor or exposed installation.
Keep this comparison focused on selecting the construction. Our UL 83 THHN/THWN-2 buyer guide covers marking, product documentation and rating checks in more detail.
Documents should identify the offered product
For an order requiring certification, ask for evidence covering the offered manufacturer, product designation and relevant sizes. A generic certificate or a statement that a factory follows a standard does not identify every product supplied by that factory.
Agree on the required document package before placing the order: an approved data sheet, applicable certification evidence, agreed test records and traceable packaging information. Confirm destination-market requirements separately from the installation design.
Size, Core Count and Price: Compare the Same Scope
One metre of multi-core Royal Cord is not equivalent to one metre of single-conductor THHN. They contain different numbers of insulated conductors and may serve different purposes.
For example, a request for “100 m of three-core cord” describes a cable assembly. A request for “100 m of THHN” describes one conductor length unless the quotation states otherwise. This is a quantity-comparison example, not a recommendation to substitute either construction.
Ask suppliers to quote against the same approved schedule, with these details visible:
| Quote item | What to specify | Why it affects comparison |
|---|---|---|
| Exact product | Recognized cord type or full building-wire designation | Prevents different product types being compared only by price |
| Conductors | Material, strand construction, core count and protective conductor where required | Defines what is included in the supply |
| Conductor size | Size per conductor in the specified mm² or AWG system | Avoids confusing overall cable diameter with conductor area |
| Ratings and approvals | Required electrical, environmental and certification details | Establishes the acceptance requirements |
| Quantity | Length by size, core arrangement and color | Makes the total supply scope clear |
| Packaging | Length per coil or reel, labels and agreed tolerances | Prevents short or differently packaged offers appearing cheaper |
| Commercial basis | Currency, delivery term, destination and quotation validity | Makes landed-cost review more meaningful |
Equal size does not mean equal allowable current
Do not transfer an ampacity value from a THHN table directly to a multi-core cord. Use the applicable product and installation rules, including temperature limits, conductor grouping and terminal conditions. Check voltage drop separately for the circuit length and load.
Also avoid treating a rounded local mm² label as an exact AWG conversion. Specify the designation required by the approved design and use matching acceptance criteria. The Philippine wire-size explanation provides more context.
Buyer Checklist: From RFQ to Sample Approval
For an initial inquiry, the most useful information is the application, expected cable type, size, quantity and destination. You can clarify the remaining technical fields during the specification review.
| RFQ field | Information to send |
|---|---|
| Application | Fixed circuit, portable equipment lead, extension assembly or other defined use |
| Product designation | Exact specified type, or the wording on the existing cable |
| Construction | Core count, conductor material, strand construction and required protective conductor |
| Size and ratings | mm²/AWG, voltage and any specified temperature or environmental requirements |
| Installation conditions | Fixed or moving, indoor or outdoor, conduit, moisture and other relevant exposure |
| Standard and documents | Project standard, certification requirement and requested test evidence |
| Order breakdown | Quantity by size and color, packaging length and marking requirements |
| Delivery | Destination, preferred delivery term and target date |
Before approving a sample, compare its designation and construction with the quotation. Agree which measurements and test results will be checked, how the production batch will be identified, and which labels must appear on the packaging.
For bulk purchases, use the electrical cable factory inspection checklist to organize acceptance checks. Settle specification differences before discussing a price-based substitution.
Frequently Asked Questions
What is the main difference between Royal Cord and THHN?
Royal Cord commonly describes a flexible multi-core cord with an overall sheath. THHN describes an individually insulated building-wire conductor with a nylon covering. The intended wiring method and complete product designation determine which to evaluate.
Is Royal Cord better than THHN?
Neither is universally better. Evaluate an appropriate flexible cord for a portable equipment connection and an appropriate building wire for a fixed raceway installation. Compare products only after defining the application.
Can stranded THHN replace Royal Cord?
Do not assume so. A stranded conductor does not by itself establish a flexible-cord or repeated-movement rating. The replacement must meet the equipment, connection and installation requirements.
Is Royal Cord waterproof?
The market name does not establish a water-exposure rating. Check the specific cord designation and data sheet, together with the suitability of plugs, glands, joints and equipment entries.
Which is cheaper: Royal Cord or THHN?
A useful price comparison requires a defined supply scope. Core count, conductor size, ratings, packaging and required accessories can differ. Ask for an itemized quotation against the approved cable schedule instead of comparing two per-metre prices in isolation.
What should I send if I do not know the exact cable type?
Start with the equipment or installation description, any existing cable-marking information, estimated quantity and destination. Identify which details are unknown so they can be clarified before a specification is approved.
Request a Philippine Cable Quote
KingForYou offers Royal Cord cable, THHN building wire and other electrical cable products.
Send your application, required product type, core count, conductor size, quantity and destination. Include the project standard and packaging requirements when available so the quotation can address the actual purchase specification.
Request a Philippine Cable Quote
You can copy this short format into your inquiry:
Application: [fixed wiring / equipment lead / other]
Cable designation: [specified type / needs clarification]
Core count and conductor size: [details]
Required ratings or standard: [details, if known]
Quantity and packaging: [details]
Destination and target delivery: [details]
This article supports product comparison and procurement. Final cable selection and installation must follow the applicable electrical design, local code and equipment requirements.
