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Product Specific FAQs about Enclosures
The pole mount kit has been internally tested to support up to 100 lbs under controlled conditions with a ZH Series enclosure. Since installation variables and environmental factors can affect performance, a definitive maximum weight rating has not been established. We recommend customers perform their own testing to ensure the kit meets the requirements of their specific application.
The ML Series cover has a waterproof gasket made of transparent silicone that is pre-installed into the groove of the cover. This can make it difficult to see, especially in certain lighting. If it looks like the gasket is missing, try gently pressing into the groove with a non-blunt object, such as a plastic pen cap or the edge of a credit card. You should be able to feel the soft gasket material. It’s easy to overlook visually, but it should be there. Watch our short video for a visual guide.
If you still don’t see the gasket after checking the groove, email [email protected] and include a few photos of your enclosure.
Compatible panels are listed on the enclosure’s product page under the “Accessory Guide” section. If no panel is shown, we do not offer one for that product. For enclosures without panels, most include a PCB drawing in the enclosure drawings found in the “Downloads” section, which can be used to create your own panel.
We don’t install any hardware or components (vents, glands, PEM nuts, screws, PCBs, mounting kits, DIN rails, etc.) prior to shipping. What we can do is machine cutouts, holes, or other features to make your installation process easier. Check out our customization service page for more information.
Our enclosures ship as individual components and do not come pre-assembled, except for our hinged series where the base and cover are attached prior to shipping. Shipping components separately helps prevent damage in transit and allows for easier installation of your components upon delivery.
No, the images on our website are high-quality digital renderings. This allows us to highlight product details without variations caused by lighting, camera angles, or environmental factors. We strive to ensure our renderings closely match the final product. However, slight variations may occur.
With the addition of our new Jaycox facility, Underwriter Laboratories (UL) requires us to indicate where our enclosures (ML, HD, ZH, ZQ, HP) are assembled. This JAY marking is applied at the time the label is applied and does not affect fit, form, or function; it is strictly aesthetic. This is a temporary measure and eventually will be replaced with updated UL stickers.
We do not label or mold our Polycase part numbers into our products. Our enclosures and accessories are designed to allow you to build and showcase your own product. By not including our part numbers, we ensure that the final product is distinctly yours, highlighting your brand and innovation.
UL listed products will have a UL certification sticker, not a Polycase part number. The UL file number is not a unique identifier for a specific product; it represents a certification shared across multiple Polycase series.
Polycase is an ecommerce-based business, our pricing is on the website for stock products. Because of this, we do not provide quotes for these products. Customers are welcome to screenshot the pricing, share the product page URL link, or utilize the ‘share shopping cart’ feature from the cart page.
Please note: All price breaks listed on our website are per shipment. To receive a quantity discount, the full quantity must be ordered and shipped at one time.
Some of our enclosures feature captive cover screws, while others have assemblies designed to function like captive screws. A captive screw is designed to stay in place within an assembly, even when the assembly is taken apart. Captive screws typically have an unthreaded portion below the head. This prevents the screw from being fully removed from the hole, so they can’t fall out or get lost. Captive screws with our metal enclosures may require additional torque.
The following enclosures feature either captive cover screws or assemblies designed to function like captive screws:
Enclosures that are UL-listed must be sold as complete units, as their rating is based on the entire assembly.
What is EMI?
EMI (electromagnetic interference) is the transmission of unwanted, external electromagnetic radiation that creates a disturbance within an electrical or electronic device.
Two Major Types of EMI:
Ambient EMI (Radiated EMI): Originates in other devices (TV, radio) or natural phenomena (lightning strikes, solar magnetic storm.)
Power Quality EMI (Conducted EMI): Originates in various kinds of disturbances and inconsistencies in a device’s power supply (voltage spikes/sags, line noise.)
What Polycase Enclosures Protect Against EMI?
Polycase offers a variety of metallic enclosures that provide an inherent level of EMI/RFI attenuation. Our metallic enclosures are constructed with non-conductive gaskets resulting in less attenuation compared to enclosures constructed with metallic gaskets that yield a faraday cage. Testing the specific enclosure for required EMI/RFI attenuation is recommended.
SA Series: Constructed from 304 stainless steel, rated up to NEMA 4X.
SB Series: Constructed from 16-gauge carbon steel, rated up to NEMA 4X
AN Series: Constructed from ADC-12 diecast aluminum, rated up to NEMA 6P
AL Series: Constructed from ADC-12 diecast aluminum, indoor use only
EX Series: Constructed from anodized 6063 aluminum (extruded) and ADC-12 diecast aluminum end caps, rated IP66
Enclosures rated for temporary submersion should meet NEMA 6 or IP67 requirements to be considered safe for use.
Enclosures rated for complete submersion should meet NEMA 6P or IP68 requirements to be considered safe for use.
Polycase offers a complete selection of submersible enclosures for your waterproof electrical or electronics applications.
Rating Definitions:
IP67: Protection from submersion in water with a depth of up to 1 meter (or 3.3 feet) for up to 30 mins
IP68: Protection from submersion in water with a depth of more than 1 meter
NEMA 6: Protection against occasional temporary submersion at a limited depth. Per UL-50, the 6 Temporary Submersion testing is done at a depth of 6' for a 30-minute period.
NEMA 6P: Protection against prolonged submersion at limited depth in water. Per UL-50, the 6P Prolonged Submersion testing is done at a depth of 6' for a 24-hour period.
Stock part numbers are our regular catalog of products easily searched on our website. Stock parts are off-the-shelf enclosures available for purchase.
Custom part numbers are enclosures that are modified with CNC machining and/or graphics specifically for you, so these part numbers are unique and not found within our regular catalog (custom part numbers start with J-, JG- or G-). Your custom part numbers are found in your account under the "My Quotes & Custom Parts" section.
A popular solution is a process known as solvent bonding, using compounds such as acetone or MEK. The solvent is placed on both surfaces of the parts to be bonded (the outer ridge of the potting box and the inside of the cover). This softens each of the surfaces and causes them to swell. Then, by applying pressure to the two parts and allowing the solvents to evaporate, the two surfaces are permanently bonded. A simpler method is to use Super Glue or any sort of ABS or plastic cement.