M-3425A BECKWITH ELECTRIC DCS Protection Relay

• Brand
  BECKWITH ELECTRIC
• Model
  M-3425A
• Product Name
  Comprehensive Generator Protection Relay
• Place of Origin
  United States
• HS Code
  8537101190
• Dimensions
  Standard 19-inch rack mounting size
• Weight
  2.2 kg
• Operating Temperature
  -20 °C to +70 °C
• Storage Temperature
  -40 °C to +85 °C
• Power Supply
  60 V AC to 140 V AC (50/60 Hz)
• Warranty
  12 month
• Product Status
  New and original

Backed by abundant in-stock inventory and nearly 20 years of industry experience, our company stands as a leading player in the industrial control sector.We offer an extensive range of industrial control products covering numerous models. Should you have any other requirements, please feel free to contact us, and we will respond to you promptly.

Our main brand:

1.ABB's module cards, touch screens, controllers, etc., such as PP846 touch screen, IGCT starting with 5SHY, PM starting controller, AI, DO starting input/output module, SP starting Bailey module, etc

2.GE's module card CPUs, such as VMIC starter, IS200, IS215, IS400, IS420 series, etc,

3.Emerson's card components and EPRO probes, Westinghouse 1C series, Honeywell CC series, Schneider 140 series, Envision full series, Bentley 3500 series, Rexroth motors and drives, and Foxboro small modules.

Analog Inputs

Voltage Inputs: 3-phase AC voltage sensing for VT connection, burden <0.2 VA @120 VAC

Current Inputs: 7 CT circuits, selectable 1 A or 5 A nominal rating; withstand 2×In continuous, 100×In for 1 second; CT burden <0.5 VA (5 A version) / <0.3 VA (1 A version)

Digital Control / Status Inputs (Standard)

6 programmable dry-contact inputs (IN1~IN6), internally wetted with 24 VDC

Minimum pickup current >25 mA; used for breaker status, function blocking, oscillography trigger

Optional Expanded I/O: add extra 8 control inputs (IN7~IN14)

Output Contacts (Standard)

8 programmable output contacts: 6 Form-A, 2 Form-C (OUT1~OUT8)

Independent power supply alarm contact (Form-B)

Self-test fault alarm contact (Form-C)

Contacts comply with IEEE C37.90 standards, configurable latching or pulse operation

Optional Expanded Digital Outputs

Extra 15 programmable output contacts (OUT9~OUT23) when Expanded I/O option is fitted

Communication Interfaces

COM1: Front-panel RS-232

COM2: Rear RS-232

COM3: Rear terminal RS-485

Optional RJ45 Ethernet 10/100Base-T, supports Modbus TCP, DNP3 TCP, IEC 61850

Ensure all external circuits are de-energized. Short all CT secondary circuits prior to starting wiring work.

Install the M-3425A onto the panel and connect the protective earth terminal to a solid equipment grounding point.

Route secondary wiring from AC voltage transformers (VT) to analog voltage input terminals; comply strictly with specified phase sequence and official VT wiring schematic.

Connect secondary circuits of current transformers (CT) to analog current input terminals. Respect polarity dot markings on the relay and never allow open-circuit CT operation.

Hook up external dry-contact status signals to digital input terminals (IN1–IN6). Avoid applying external voltage to these internally wetted inputs.

Run wiring for trip circuits, alarm signals and control loads to programmable relay output contacts (OUT1–OUT8); isolate control power circuits for trip loops.

Lay communication cables to RS232, RS485 or optional Ethernet port. Adhere to shielding specifications for communication wiring.

Terminate auxiliary DC or AC supply wiring to the relay operating power terminals.

If the Expanded I/O option is equipped, wire additional digital inputs and outputs to matching rear terminals.

Thoroughly verify terminal tightness, phase sequence, CT polarity and insulation clearances.

Take away temporary CT shorting jumpers once the full wiring inspection is completed.

Apply auxiliary power, check measured metering data, and configure CT/VT ratios plus protection parameters through the front HMI or IPScom software.

Frequently Asked Questions (FAQ)

1.How fast will you reply to my inquiry?

We process all inquiries efficiently and will respond promptly once we receive your message.

2.Do you carry large inventory of industrial control parts?

We maintain massive ready stock of mainstream automation spare parts to shorten lead times.

3.Can you source discontinued or obsolete PLC & DCS modules?

Absolutely.
We specialize in sourcing hard-to-find, obsolete and out-of-production industrial control components.

4.Do you inspect goods before shipment?

Every product undergoes thorough inspection before packing and dispatch.

5.Can you ship orders worldwide?

We provide global shipping with flexible logistics for urgent and regular orders.

6.What payment methods are available?

We accept multiple secure payment options. Please contact our sales team for detailed terms.

7.Do you offer warranty on industrial control spare parts?

Warranty differs by product.
Confirm specific warranty details with us prior to ordering.

8.Are your automation parts new or used?

We supply both new and fully tested used industrial control spare parts.
Please state your needs in your inquiry.

9.What is your typical delivery lead time?

In-stock items can be shipped quickly.
We will advise exact lead time for out-of-stock products after stock verification.

10.Can you offer technical support to check model compatibility?

Yes.Our professional team provides technical support to verify specifications and model compatibility.