GRI 250-36 Industrial Overhead Door Switch, Wall Mount, Closed Loop, 2-1/2" Gap
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Industrial-grade door monitoring that reduces downtime and false alarms for warehouses and loading docks
- Crush-resistant extruded-aluminum housing protects the reed switch under heavy traffic (tested to 20,000 lb)
- 36" stainless-steel armored cable and hermetically sealed contact deliver dependable wired security and surveillance integration
- 2.5" standard gap and plated contacts resist sticking or freezing for reliable performance in harsh environments
- Simple screw-terminal installation with N.O. contact, optional built-in E.O.L. resistors and a lifetime warranty for long-term value
Quick Specifications
- Product Model
- 250-36
- Brand Name
- George Risk Industries
- Product Name
- 250 Industrial Overhead Door Switch
- Product Type
- Magnetic Contact
Frequently Bought Together
GRI 250-36 Industrial Overhead Door Switch, Wall Mount, Closed Loop, 2-1/2" Gap
$34.18
5 items selected
Total: $184.75
Explore the details
Product information
250-36
Overview
Protect heavy-duty overhead doors with dependable, industrial-grade monitoring from George Risk Industries. The GRI 250-36 Industrial Overhead Door Switch is a magnetic contact designed for high-traffic applications—loading docks, manufacturing bays and secured facilities—where durability and reliable security integration matter most. Its extruded-aluminum housing is engineered to shield the internal reed switch from extreme forces (tested to withstand crushing loads up to 20,000 lb), while hermetic sealing and plated contacts prevent sticking or freezing in adverse conditions.
Designed for straightforward integration with alarm panels and access control, the 250-36 features a 2.5" standard gap, a normally-open (N.O.) contact, and a 36" #22 AWG stainless-steel armored cable for secure, tamper-resistant wired connectivity. Rated for DC operation and built for commercial installation, it supports surveillance and monitoring systems that require reliable door status signals. Optional built-in E.O.L. resistors and supervisory loops simplify alarm wiring and diagnostics.
Specify the GRI 250-36 for industrial door monitoring and security applications—add to your system or contact us for custom configurations and volume quotes.
Features
- Industrial-grade door monitoring that reduces downtime and false alarms for warehouses and loading docks
- Crush-resistant extruded-aluminum housing protects the reed switch under heavy traffic (tested to 20,000 lb)
- 36" stainless-steel armored cable and hermetically sealed contact deliver dependable wired security and surveillance integration
- 2.5" standard gap and plated contacts resist sticking or freezing for reliable performance in harsh environments
- Simple screw-terminal installation with N.O. contact, optional built-in E.O.L. resistors and a lifetime warranty for long-term value
| General Information | |
|---|---|
| Brand Name | George Risk Industries |
| Manufacturer | George Risk Industries |
| Product Name | 250 Industrial Overhead Door Switch |
| Product Type | Magnetic Contact |
| Product Model | 250-36 |
| Product Series | 250 |
| Manufacturer Part Number | 250-36 |
| Technical Information | |
| Armored | Yes |
| Contact Form | Form A |
| Standard Gap | 2.5" |
| Application/Usage | Industrial |
| Power Consumption | 10W |
| Termination Style | Screw Terminal |
| Connectivity Technology | Wired |
| Physical Characteristics | |
| Color | Silver |
| Power Description | |
| Power Source | DC |
| Input Current | 500mA |
| Input Voltage | 200V DC |
| Product Information | |
| Contact Type | N.O. |
| Installation Type | Commercial |
| Warranty | |
| Limited Warranty | Lifetime Warranty |
| Miscellaneous | |
| Features | Built-in E.O.L. Resistors Upon Request, Hermetically sealed, Longer leads upon request, Plated contacts resist sticking or freezing |
| Country of Origin | US |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- 250-36
- Manufacturer part:
- 250-36
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsGRI 250-36 Industrial Overhead Door Switch, Wall Mount, Closed Loop, 2-1/2" Gap
250-36