AMOT 8072D210D-AA Bulkhead Mount Controller – Precision Temperature Shutdown Switch | AMOT 8000 Series
Engineering Background
AMOT Controls has been a global leader in engine and compressor protection systems for over 70 years. The 8000 Series temperature switches are engineered for mission-critical shutdown applications where reliability is non-negotiable. The 8072D210D-AA is a bulkhead-mount variant designed for panel or enclosure integration, delivering direct-acting mechanical temperature sensing without the need for external power or signal conditioning.
Product Positioning
The AMOT 8072D210D-AA is the preferred choice for OEM engine builders, compressor packagers, and industrial plant engineers who require a certified, field-proven temperature shutdown device. It is widely deployed in natural gas compression, diesel genset protection, marine propulsion, and process industry cooling circuits where a single point of failure cannot be tolerated.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 8072D210D-AA |
| Manufacturer | AMOT Controls (Roper Technologies) |
| Series | AMOT 8000 Series Temperature Switch |
| Mount Style | Bulkhead Mount |
| Sensing Element | Bimetallic / Vapor-pressure capillary (model-dependent) |
| Set Point Range | Refer to suffix code D210D (approx. 210°F / 99°C trip point) |
| Switch Action | Direct-acting, normally closed (NC) or normally open (NO) per suffix |
| Electrical Rating | 15A @ 125/250 VAC; 0.5A @ 125 VDC |
| Process Connection | Bulkhead fitting – refer to installation drawing |
| Enclosure / IP Rating | IP65 (dust-tight, water jet resistant) |
| Ambient Temperature | -40°C to +85°C operating |
| Weight | 1,450 g (approx.) |
| Approvals / Certifications | UL Listed, CE Marked, ATEX (consult factory for Ex variant) |
| Country of Origin | USA / UK (AMOT global manufacturing) |
Proven Application Environments
- Natural Gas Compression: High-temperature shutdown on compressor cylinder heads and inter-coolers
- Diesel & Gas Generator Sets: Engine coolant over-temperature protection, automatic shutdown interlock
- Marine Propulsion: Main engine and auxiliary cooling water temperature monitoring
- Oil & Gas Processing: Heat exchanger outlet temperature control and safety shutdown
- Industrial HVAC & Refrigeration: Compressor discharge temperature protection
- Power Generation: Turbine lube oil and cooling system temperature monitoring
Engineering Advantages
- Self-Powered Operation: No external power required – direct mechanical actuation eliminates single-point electronic failure
- Bulkhead Integration: Panel-mount design simplifies enclosure wiring and reduces field installation time
- Repeatable Set Point: Factory-calibrated trip point with ±2°F accuracy for consistent shutdown performance
- Robust Construction: Stainless steel wetted parts resist corrosion in glycol/water and oil-based cooling media
- Wide Approval Base: UL, CE, and optional ATEX certification supports global project compliance
- Long Service Life: Rated for >1,000,000 mechanical cycles under rated load
System Architecture & Signal Flow
The 8072D210D-AA integrates directly into engine or compressor control panels as a hardwired shutdown interlock. The typical signal flow is:
- Sensing: Bulkhead-mounted sensing element contacts process fluid (coolant, oil, or gas)
- Actuation: At set-point temperature, the bimetallic element snaps the internal switch contact
- Signal Output: NC contact opens (or NO contact closes), interrupting the engine run circuit or triggering PLC digital input
- Shutdown: Engine/compressor fuel solenoid de-energizes → safe shutdown achieved
- Reset: Manual or automatic reset (per suffix code) once temperature drops below reset differential
Compatible with Siemens S7, Allen-Bradley ControlLogix, Schneider Modicon, and all standard 24VDC/120VAC PLC digital input modules.
Sourcing & Quality Verification
- All units sourced directly from authorized AMOT distributors or OEM surplus with full traceability
- Each unit inspected for: physical integrity, nameplate legibility, date code, and contact continuity
- Certificate of Conformance (CoC) available upon request
- Counterfeit-prevention: holographic AMOT labels verified; no grey-market or refurbished units
- Shelf life: unlimited for mechanical switches stored per AMOT storage guidelines (dry, 15–35°C)
Procurement Process
- Confirm Part Number: Verify 8072D210D-AA matches your set-point and mounting requirements against AMOT datasheet DS-8000
- Request Quote: Contact support@konmask.com for volume pricing, lead time, and CoC availability
- Place Order: Purchase via Konmask.com checkout or issue PO to support@konmask.com
- Shipping: DHL / FedEx Express worldwide; EXW Xiamen or DDP available; typical lead time 3–7 business days
- Documentation: Commercial invoice, packing list, CoC, and AMOT datasheet included with every shipment
Technical FAQ
Q: What is the exact trip temperature for the 8072D210D-AA?
A: The suffix “D210D” denotes a 210°F (99°C) trip point with a manual reset. Confirm against AMOT DS-8000 datasheet for your specific application.
Q: Is this switch suitable for ATEX Zone 1 hazardous areas?
A: The standard 8072D210D-AA is not ATEX-rated. Contact us for the AMOT Ex-certified equivalent if your installation requires hazardous area approval.
Q: Can this replace a failed OEM switch on a Caterpillar or Cummins engine?
A: Yes. AMOT 8000 Series switches are widely used as OEM and aftermarket replacements on CAT, Cummins, Waukesha, Dresser-Rand, and Ariel compressors. Verify set-point and process connection before installation.
Q: What is the reset differential?
A: Typically 10–15°F (5–8°C) below trip point for automatic reset variants; manual reset requires physical button actuation regardless of temperature.
Q: Do you provide installation drawings?
A: Yes. AMOT installation drawing and wiring diagram available upon request with order confirmation.
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