Overview
The Sentrol 2505A-L is a heavy-duty industrial surface mount magnetic contact from UTC Interlogix (formerly GE Security). This industrial aluminum surface mount contact with steel armored cable is designed for commercial and industrial environments where a rugged sealed unit is required. It is ideal for metal doors, overhead doors, fences and gates.
Key Features
- Wide gap design – 3-inch nominal sensing range for large openings and roll-up/bay doors
- Corrosion-resistant construction – Aluminum body with rhodium or ruthenium-plated weatherproof reeds
- Extreme durability – Conservatively rated at 10,000,000 cycles, guaranteeing long life
- Armored cable included – 3ft armored cable is included with every unit for added protection
- IP67 environmental rating – Sealed design for washdown and outdoor use
- Normally open (NO) configuration – Standard alarm contact logic for perimeter security
Technical Specifications
- Operating Voltage: 100V AC/DC
- Contact Rating: 0.5A at 7.5W/VA
- Operating Temperature Range: -40°F to +150°F (-40°C to +65°C)
- Gap Size: 3 inches (76mm) wide gap
- Housing Material: Brushed anodized aluminum with ABS plastic end caps
- Enclosure Rating: IP67 (dust and water tight)
- Contact Type: Normally open, single-pole single-throw
- Cycle Rating: 10,000,000 electrical cycles
- Cable Included: 3-foot stainless steel armored lead
Typical Applications
- Roll-up door and bay door perimeter security
- Overhead garage door monitoring on industrial facilities
- Metal gate and fence intrusion detection
- Harsh outdoor environment applications requiring sealed contacts
- Commercial warehouse and loading dock access control
- Industrial equipment interlocks and safety systems
Compatibility & Replacements
Compatible With
- Any alarm control panel accepting 0.5A / 100V magnetic contacts
- UTC/Interlogix security systems and panels
- Standard hardwired burglar alarm installations
- Fire and access control systems requiring door/gate monitoring
- Industrial perimeter security networks
Replaces / Drop-In Replacement For
- SR-2505AL – Sentrol equivalent model designation
- GES-2505AL – GE Security legacy model number
- Other wide-gap industrial magnetic contacts with 100V/0.5A ratings
Works With
- Hardwired alarm panels and control modules
- Contact closure and normally-open relay logic
- Traditional security system installations (no smart home integration)
- Standalone magnetic switch applications
- Optional mounting brackets available for specialized applications



