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Enclosed isolator boxes for outdoor equipment disconnects. Choose SHP, SH30, or LW28 by function, current rating, enclosure size, and drawing requirements.
Match the enclosure route to the switching duty before checking dimensions, cable entry, and approval documents.
Standard red/yellow enclosed isolator route for outdoor local disconnection and equipment maintenance points.
Narrow enclosed load isolator route for HVAC equipment, pumps, ventilation systems, and outdoor service switches.
Enclosed rotary cam switch route for selector control, source transfer, reversing, metering, and custom contact programs.
Use this guide to choose between standard waterproof isolator boxes, compact weatherproof load isolation, and enclosed cam switch assemblies before checking dimensions or model code details.
| Usage Scenario | Recommended Route | Why | Installation / Notes |
|---|---|---|---|
| Local ON/OFF equipment disconnection near pumps, fans, conveyors, and outdoor service points | SHP | Standard waterproof isolator box route with red/yellow handle and common enclosure sizes | Confirm current rating, pole count, box size, cable entry, and handle marking |
| Compact load isolation beside HVAC units, rooftop equipment, pump systems, and wall-mounted machinery | SH30 | Narrow weatherproof load isolator route when space and visible local isolation matter | Check mounting depth, cable-entry direction, padlock requirement, and drawing approval |
| Selector, transfer, reversing, metering, and multi-position switching inside a waterproof enclosure | LW28 | Cam-operated contact program supports custom switch logic beyond simple isolation | Send contact sequence, handle angle, wiring diagram, poles, and enclosure size |
| Outdoor or wet-area installations with rain, dust, cleaning spray, cable glands, or corrosion exposure | SHP / SH30 | Enclosure, IP marking, material, and cable-entry details drive the final route | Confirm IP requirement, plastic or stainless steel box, gland layout, and mounting position |
| OEM or project purchasing where drawings, certificates, wiring diagram, and lead time are required | Review | The same box style can change by market, duty, document package, and quantity | Send procurement details to Shieldhz sales |
Final selection should confirm current rating, voltage, pole count, switching duty, enclosure code, cable entry, handle marking, quantity, certification market, and required document package.
Shieldhz is the switch brand of Zhejiang Shihe Electric Co., Ltd., founded in 2014, with ISO 9001 production management and a 5,000+ sqm industrial control component factory. The team helps match the waterproof box route, confirm documents, and keep the order path clear from sample request to production shipment.
Switch duty, wiring, mounting, IP requirement, and certification checks before quotation.
SHP, SH30, and LW28 cover standard isolation, compact load isolation, and cam-switch logic.
Drawings, certificate copies, wiring diagrams, and shipment coordination for OEM and distributor orders.
Use waterproof switch assemblies where the isolation point must stay close to outdoor equipment, wet-area machinery, or service access zones.
Local waterproof isolator boxes beside pumps, auxiliary motors, conveyors, and outdoor drive equipment where maintenance staff need a visible disconnect.
View SHP pump isolator routeWeatherproof load isolation for rooftop units, ventilation equipment, wall-mounted machines, and outdoor service switches with limited mounting space.
View SH30 HVAC isolator routeEnclosed rotary cam switch boxes for selector control, reversing, transfer, metering, and multi-position operator functions outside the main cabinet.
View LW28 waterproof cam switch routeWaterproof switch points for yards, utility rooms, wash-down zones, and wet industrial areas where cable entry and enclosure material must be confirmed.
Send outdoor box requirementsOpen the drawings in a modal for quick inspection, then use each detailed page for model dimensions, wall-mounting hole spacing, cable-entry position, operator projection, and enclosure depth.
Overall enclosure sizes and installation spacing for SHP0, SHP1, SHP3, and SHP5 box routes.
Front, side, cable-entry, and wall-mounting references for narrow SH30 weatherproof boxes.
Square box outlines, handle projection, cable entry, and mounting data for waterproof cam switch boxes.
Dimension drawing
Use the catalogue code logic and route table to confirm the waterproof switch box family before checking dimensions, wiring diagrams, certificates, and order documents.
Choose the series that matches the switching duty, then confirm the box code, handle style, cable-entry direction, and document package on the matching detailed page.
| Code Family | Box Route | Typical Models Shown | Use On Page |
|---|---|---|---|
| L0 / L1 / L3 / L5 | SHP waterproof box sizes | SHP0-20/3/L0/GSC, SHP1-25/3/L1/GSC, SHP3-63/3/L3/GSC, SHP5-100/3/L5/GSC | Standard waterproof isolator switch boxes |
| H1 / H3 / H5 | SH30 waterproof box sizes | SH30-32/3/H1/GSB, SH30-63/3/H3/GSB, SH30-100/3/H5/GSB | Narrow weatherproof load isolation boxes |
| HF0 / HF3 / HF5 | LW28 waterproof cam switch box sizes | LW28-20/HF0, LW28-63/HF3, LW28-125/HF5 configurations | Selector, transfer, reversing, and multi-step cam switch boxes |
Prepare these details before quotation so Shieldhz can match the enclosure route, switch body, approval drawings, and delivery plan without repeated clarification.
Define ON/OFF isolation, load breaking, selector control, transfer, reversing, metering, or custom cam logic.
Open cam switch routeConfirm IP requirement, enclosure material, cable gland layout, rain exposure, wash-down, and corrosion conditions.
Open SHP box routeProvide rated current, operating voltage, AC or DC duty, pole count, load type, and isolation category.
Open SH30 isolator routeConfirm box size, wall-mounting position, operator projection, cable-entry direction, and gland clearance.
Open dimension drawingsList quantity, MOQ target, lead time, target market, datasheet, drawing, wiring diagram, and certificate needs.
Send procurement detailsThese questions help buyers separate product families and prepare enough technical information for an accurate quotation.
A waterproof isolator box is an enclosed switch assembly used for local equipment disconnection in outdoor, wet, dusty, or service-access areas. It normally includes the enclosure, rotary handle, front plate, and internal switch mechanism matched to the required current, pole count, and function.
Choose SHP for standard enclosed isolator boxes, SH30 for narrower load isolation boxes, and LW28 when the request includes selector, transfer, reversing, meter selection, or multi-position cam-switch logic. The switching function is usually more important than the box appearance.
No. These routes describe enclosed switch assemblies rather than empty plastic boxes. A complete order should define the switch mechanism, enclosure size, handle style, current rating, pole count, cable entry, and any required wiring diagram or approval drawing.
Yes. Shieldhz can match current rating, pole count, handle marking, enclosure size, and switching function to the project requirement when the electrical duty is clear. For LW28 cam-switch boxes, include the contact program or wiring diagram before quotation.
Send the product family if known, rated current, voltage, pole count, switch function, waterproof box code, material preference, cable-entry direction, quantity, target certification market, required documents, and delivery schedule. Photos or drawings from the existing installation also help.
Stainless steel options can be reviewed for projects that need stronger corrosion resistance or a metal enclosure. The request should include material grade expectations, dimensions, cable-entry position, switch rating, order quantity, and whether samples or drawings are needed first.
Waterproof switch box selection usually references the switch duty, IP rating, and certification market. IEC 60947-3 is commonly used for switch-disconnector context, while IP ratings and local certification requirements should be confirmed against the exact model and target country.
Share current rating, pole count, switching function, enclosure needs, quantity, market, and deadline. Shieldhz will match SHP, SH30, or LW28 and confirm drawings, MOQ, lead time, and documents.
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