Description
Technical Specifications
| Parameter |
Detail |
| Brand |
General Electric (GE Multilin) |
| Model |
MMII-PD-1-2-120 |
| Series |
MM2 / Multilin Motor Manager Series |
| Product Name |
Digital Motor Protection Relay |
| Country of Origin |
United States / Canada |
| Lifecycle Status |
Obsolete / Legacy Supported |
| Dimensions |
215 mm x 180 mm x 110 mm |
| Weight |
2.1 kg |
| Manufacturing Location |
North America |
| Power Consumption |
12 W typical / 20 W max (120V AC Control Power) |

Product Introduction
The General Electric MMII-PD-1-2-120 is an advanced digital motor protection relay engineered from the trusted Multilin Motor Manager series. Designed to safeguard medium-voltage and critical low-voltage AC induction motors, it provides comprehensive thermal modeling, phase unbalance protection, ground fault detection, and jam/stall protection. Featuring digital metering, trip diagnostics, and reliable communication outputs, the MMII prevents premature motor degradation and catastrophic failures, making it an essential asset-protection device for heavy industrial applications such as pumps, compressors, fans, and conveyors.
Frequently Asked Questions
⚡ What is the primary function of this protection relay?
It provides comprehensive electrical protection, thermal overload modeling, and fault monitoring for industrial AC induction motors.
🔌 What control power supply voltage does the “-120” designation indicate?
It specifies that the unit is designed to operate using a standard 120V AC control power source.
⚙️ How does the relay communicate operational data to plant control systems?
It utilizes integrated serial communication ports (such as RS485 using Modbus protocol) to interface directly with SCADA or PLC systems for remote monitoring.
Alternative Model Recommendations
- GE Multilin MM300 Motor Protection System
- GE Multilin 469 Motor Management Relay
- GE Multilin 369 Motor Management Relay
- ABB REF542plus Motor Protection Terminal
- Schneider Electric Sepam Series 40
- Siemens SIPROTEC 7SK82
- SEL-710 Motor Protection Relay
- Rockwell Automation 193-E_D Electronic Overload Relay
- Basler Electric BE1-CDS
- Littelfuse Protection Relays
At Newplcdcs, we specialize in providing high-quality spare parts for Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC). Our comprehensive product portfolio includes parts from approximately 20 leading brands, such as ABB, Bently Nevada, Honeywell, GE, Yokogawa, Allen Bradley, Foxboro, Ovation, Hima, Emerson, Triconex, Woodward, ICS Triplex, Bachmann, and Schneider. This focused expertise allows us to offer in-depth solutions in the automation sector, setting us apart from many competitors and ensuring we deliver the most advanced and reliable products to our clients.
Contact Information
Frequently Asked Questions
Is our price competitive?
Newsplcdcs collaborates with over 50 countries worldwide. as a leading supplier in china, we can provide significant discounts to customers based on market demand.
What is the warranty period?
We offer a standard one-year warranty for all new and original items.
What payment methods do we accept?
We accept 100% t/t (telegraphic transfer) before shipping. for items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. if you have an agent in china, please contact us for rmb transfer.
What shipping methods do we use?
We primarily utilize carriers such as fedex, dhl, ups, bre, etc. if you have an account with any of these carriers, you can arrange the shipping yourself. additionally, we offer free shipping to china freight forwarders.
What is our delivery time?
Typically, delivery takes around 1-3 days after receiving the advance payment. for items with a quoted lead time, delivery will occur as per the specified lead time.
How do we package the goods?
Our packaging process involves multiple layers of protection. initially, the product is placed in its original box, sealed with a label. then, we add a layer of bubble wrap to safeguard against collisions during transportation. finally, all products are securely packed in sturdy boxes for further protection.
How can customers contact us and request a quote?
Customers can inquire via email, whatsapp, wechat, skype, or any preferred communication platform. simply reach out to us, and we’ll promptly provide a quote tailored to your needs.