GE MMII-PD-1-2-240 Motor Manager – Motor Manager II Series
When a critical motor trips unexpectedly on a production line — whether driving a compressor, conveyor, pump, or HVAC system — every minute of unplanned downtime translates directly into lost output, safety risk, and costly emergency maintenance. Without intelligent motor protection, overcurrents go undetected, phase imbalances silently degrade windings, and thermal overloads shorten motor life from years to months. The GE MMII-PD-1-2-240 Motor Manager eliminates these vulnerabilities by delivering comprehensive, real-time motor protection and monitoring in a single integrated device.
The MMII-PD-1-2-240 belongs to General Electric’s Motor Manager II (MMII) series — a globally recognized platform engineered for demanding industrial environments. Within the MMII lineup, the PD-1-2-240 variant is specifically configured for 240V AC control voltage applications, offering a balanced combination of protection depth, communication capability, and ease of integration. GE Motor Manager relays are deployed across thousands of industrial facilities worldwide, trusted by engineers in oil & gas, water treatment, mining, and manufacturing for their reliability and diagnostic precision.
Technical Specifications
- Model: MMII-PD-1-2-240
- Series: Motor Manager II (MMII)
- Manufacturer: General Electric (GE)
- Control Voltage: 240V AC
- Protection Functions: Overload, Undercurrent, Phase Loss, Phase Reversal, Ground Fault, Thermistor Input
- Communication: RS-485 serial (Modbus RTU compatible)
- Outputs: Trip relay, Alarm relay
- Display: LED indicators for status and fault diagnostics
- Mounting: DIN rail / panel mount
- Weight: 1,960 g (approx.)
- SKU: MMII-PD-1-2-240
Note: All specifications are based on GE published documentation. Konmask.com does not fabricate or alter manufacturer specifications.
Key Features & Benefits
- Comprehensive Motor Protection: Guards against the most common causes of motor failure — thermal overload, phase loss, phase reversal, undercurrent, and ground fault — in a single unit.
- Thermistor Input: Directly monitors motor winding temperature via PTC/NTC thermistors for true thermal protection beyond current-based modeling.
- RS-485 / Modbus RTU Communication: Enables seamless integration into SCADA, DCS, and PLC-based control architectures for remote monitoring and fault logging.
- Diagnostic LED Indicators: Provides instant visual fault identification, reducing troubleshooting time and accelerating motor restart decisions.
- Adjustable Protection Parameters: Configurable trip curves and time delays allow precise tuning to match specific motor characteristics and process requirements.
- Compact, Panel-Ready Design: DIN rail and panel mount compatibility simplifies installation in MCC (Motor Control Center) cabinets and control panels.
- Proven GE Reliability: Backed by General Electric’s decades of expertise in industrial protection relays, with a global installed base across critical infrastructure.
Industry & Equipment Applications
- Oil & Gas: Pump motors, compressor drives, wellhead control panels
- Water & Wastewater Treatment: Submersible pump protection, blower motor management
- Mining & Minerals: Conveyor belt drives, crusher motors, ventilation fans
- Manufacturing & Assembly: CNC machine spindle motors, hydraulic power units
- HVAC & Building Automation: Chiller compressors, air handling unit (AHU) fan motors
- Power Generation: Auxiliary motor protection in turbine and generator plants
- Marine & Offshore: Deck machinery, ballast pump motors
System Integration & Compatible Parts
The MMII-PD-1-2-240 is designed to integrate within GE’s broader motor control and protection ecosystem. Compatible and commonly paired components include:
- GE Motor Manager II series variants (MMII-PD-1-1-120, MMII-PD-1-2-120, etc.)
- GE Multilin 369 Motor Management Relay (for larger HV motor applications)
- GE current transformers (CTs) for accurate current sensing
- GE contactor and starter assemblies for MCC integration
- Modbus RTU-compatible PLCs and SCADA gateways
Contact Konmask.com for cross-reference assistance and compatible spare parts sourcing.
Our Quality Assurance Process
- Source Verification: All GE Motor Manager units are sourced from authorized distributors or verified surplus channels with full traceability.
- Visual & Physical Inspection: Each unit undergoes inspection for physical integrity, label authenticity, and connector condition prior to dispatch.
- Functional Testing (where applicable): Units are bench-tested for power-on response and communication functionality before shipment.
- Secure Packaging: Anti-static packaging with foam cushioning ensures safe transit for sensitive electronic components.
- Documentation: Datasheet and test records available upon request for quality-critical procurement.
How to Order
- Submit an inquiry via the Contact Us page or email support@konmask.com
- Provide your required quantity, delivery timeline, and destination country
- Receive a formal quotation with lead time and shipping options within 24 business hours
- Confirm order and receive proforma invoice for payment processing
- Shipment dispatched with tracking number and commercial documentation
We support T/T bank transfer, PayPal, and other B2B payment methods. Export documentation (commercial invoice, packing list, COO) provided for all international orders.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC modules, DCS components, and industrial protection relays — not general electronics.
- Global B2B Supply: Serving engineering firms, system integrators, and MRO procurement teams across Asia, Europe, the Middle East, and the Americas.
- Fast Inquiry Response: Dedicated technical sales team responds to RFQs within 24 hours.
- Competitive Pricing: Direct sourcing relationships enable competitive pricing on both new and refurbished GE components.
- Technical Support: Our team includes experienced automation engineers who can assist with compatibility verification and application guidance.
- Reliable Logistics: DHL, FedEx, and sea freight options with full export documentation support.
Frequently Asked Questions
Q: What does the “PD-1-2-240” suffix mean in the MMII model number?
A: The suffix designates the specific configuration variant within the Motor Manager II series. “240” refers to the 240V AC control voltage rating. The PD designation indicates the protection and communication feature set included in this model. Always verify the full model number when ordering to ensure compatibility with your control voltage.
Q: Is the MMII-PD-1-2-240 compatible with Modbus RTU SCADA systems?
A: Yes. The MMII-PD-1-2-240 features RS-485 serial communication supporting Modbus RTU protocol, making it compatible with most modern SCADA, DCS, and PLC platforms that support this standard.
Q: Can Konmask.com supply a datasheet or wiring diagram for this unit?
A: Yes. Please contact us at support@konmask.com and we will provide the GE Motor Manager II technical documentation, including wiring diagrams and parameter configuration guides.
Q: Do you offer warranty on the GE MMII-PD-1-2-240?
A: We offer a standard inspection and functionality warranty. Please contact our sales team for specific warranty terms applicable to your order.
Q: What is the lead time for the MMII-PD-1-2-240?
A: Lead time depends on current stock availability. Submit an RFQ and our team will confirm availability and estimated delivery within 24 business hours.
Q: Can this relay protect motors above 240V?
A: The 240V rating refers to the control circuit voltage, not the motor voltage. The MMII-PD-1-2-240 can protect motors operating at higher voltages when used with appropriately rated current transformers (CTs). Consult GE documentation or contact Konmask.com for application-specific guidance.
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