Waterproof Overhead Crane Switch
The AR1-21WD is a waterproof pendant control switch for overhead cranes, designed for start-only operation with a 5A working current and 500V working voltage. It features two buttons and is built to withstand harsh industrial envi
What The Waterproof Overhead Crane Switch Is For
The AR1-21WD is a waterproof pendant control switch for overhead cranes, designed for start-only operation with a 5A working current and 500V working voltage. It features two buttons and is built to withstand harsh industrial environments, including wet or dusty conditions. The switch is suitable for retrofitting or replacing existing pendant stations on cranes where a simple start function is required without additional controls.
What You Get From This Unit
- IP65 rated enclosure protects against water, dust and splashes in wet or dirty environments
- Start-only operation simplifies control for basic crane activation without complex motion sequences
- 5A current rating allows direct connection to contactor coils without intermediate relays
- Two-button design reduces complexity and potential for accidental operation
- Robust construction ensures long-term reliability in demanding factory and yard conditions
Waterproof Overhead Crane Switch As Supplied
Where This Model Is Used
- Retrofitting a crane with a simple start function where a full control station is not needed
- Replacing a failed or damaged pendant switch in a wet or dusty workshop environment
- Use on overhead cranes in fabrication shops, warehouses or outdoor yards exposed to weather
- Installation on electric hoists or winches where only a start command is required
- Maintenance teams needing a reliable, low-cost replacement for a single-function control
Buyers This Model Suits
- Crane and hoist OEMs specifying a basic start control for a new machine
- Maintenance contractors replacing a failed pendant switch on-site
- Equipment dealers stocking a simple, durable control for common crane applications
- Traders sourcing a low-MOQ, functional switch for repair or replacement use
What Goes Wrong Without It
- Existing pendant switch fails due to water ingress in a wash-down or outdoor area
- Dust or debris causes intermittent contact in a standard non-sealed switch
- Operator accidentally triggers multiple motions with a complex control station
- Need for a simple start-only control without extra wiring or relays
- High failure rate of standard switches in harsh industrial conditions
How The Unit Is Built
- Two push buttons: one for start, one for stop or auxiliary function
- IP65 enclosure protection for dust and water resistance
- Working voltage: 500V AC/DC
- Working current: 5A
- Direct contactor control without need for external relay
- Glass fibre housing for impact and heat resistance
- Sealed button contacts to prevent contamination
- Mounting bracket included for secure panel installation
Data From The Original Product Sheet
| Model | AR1-21WD |
|---|---|
| Operating Methods | Start |
| Button No. | 2 |
| Working Voltage | 500V |
| Working Current | 5A |
| Housing Material | Glass fibre |
| Mounting Type | Panel mount |
| Contact Rating | 5A |
| Cable Length | 1 m |
| Warranty | 1 year |
What The Housing And Contacts Are Made Of
- Glass fibre housing for high impact resistance and thermal stability
- Sealed button contacts to prevent dust and moisture from affecting electrical continuity
How This Unit Is Made
Step 1
Raw materials inspected upon arrival at the factory
Step 2
Switch housing injection molded and tested for seal integrity
Step 3
Internal contacts and wiring assembled on the production line
Step 4
Each unit tested for contact resistance and insulation at 500V before packaging
Step 5
Final inspection includes visual check and button function test
What Is Checked Before It Ships
- Step-by-step inspection from raw material to finished product
- Working process follows ISO9001:2008
- Each unit tested under rated voltage and current before shipment
- 12 month warranty from delivery
What Can Be Changed On Your Order
- Button text can be customized on OEM orders
- Voltage and current ratings are fixed per model; no changes to electrical specs
- Mounting bracket and cable length standard; no modifications
How It Compares With The Alternatives
| Standard non-waterproof pendant switch | AR1-21WD resists water and dust, making it suitable for outdoor or wash-down areas where standard switches fail |
|---|---|
| Full-function pendant control station | AR1-21WD is simpler and cheaper for start-only applications; full stations add complexity and cost when only one function is needed |
| Joystick or multi-button radio remote | This switch is mechanical and direct; radio controls add range and mobility but require batteries and pairing |
Getting It Onto The Machine
- Confirm the crane’s control voltage is within 500V before installation
- Ensure the contactor coil can handle 5A; if not, add a relay
- Mount the switch securely on the panel using the included bracket
- Route the 1 m cable to the contactor terminals with proper strain relief
- Test the start function and verify the switch operates reliably under load
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How To Replace A Broken Or Lost Remote Control
Technical guide
OEM And Private Label Control Units
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Catalogue And Datasheets
Download center
Frequently Asked Questions
What is the minimum order quantity?
One piece. A single sample is available for testing before volume purchase.
How long is delivery?
Samples delivered in 2-4 days; small volume orders take around 7 days, then 3-8 days via FedEx or DHL.
Can I get a replacement switch?
Yes. Send the model number and any visible markings, and we will supply a matching unit.
Is it suitable for outdoor use?
Yes. The IP65 rating protects against water and dust, making it suitable for outdoor gantries and wet environments.
Can the button text be changed?
Yes. Custom button labels and OEM branding are accepted on bulk orders.
What voltage should I use?
The switch is rated for 500V. Confirm your crane’s control voltage is within this range before installation.
How is it packaged?
One unit per box at 20 x 15 x 10 cm; six units per carton at 45 x 35 x 25 cm.
Quote The Waterproof Overhead Crane Switch
Send the control voltage on your panel and the motion list. A price, a lead time and the matching receiver build come back the same working day.