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  • 4.67 (3)
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Woodward part 8440-1877 series MSLC-2. This control comes with utility unload, baseload, and import/export loads and requires a power supply of 8 to 40 Vdc.



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  • Part Number: 8440-1877
  • SKU: 84401877WO
  • Manufacturer: Woodward
  • Series: MSLC-2 Master Synchronizer and Load Control

8440-1877 Technical Specifications

Input Resistance Per Path 480 V = 2.0 MΩ
Intrinsic Consumption Maximum of 15 W
Rated Phase-Ground Voltage (120 V) 150 Vac
Reverse Voltage Protection full supply range
Series MSLC-2
Weight approx. 4.2 lbs

Product Description

The 8440-1877 MSLC-2 model is manufactured by Woodward Inc, this model is labeled as a 5A current transformer (CT) input model. This specific model is available to buy, sell, repair, and refurbish from AX Control Inc located in Raleigh, North Carolina. The 8440-1877 component was designed to be integrated into Woodward’s Master Synchronizer and Load Control (MSLC) series, which is also available for your to purchase from our new or secondhand inventory. 

The 8440-1877 unit includes a function that is used as an automatic unloading and loading system that will help bumpless load transfer occur. There are also four load control modes that are equipped within the MSLC-2 series controls, the modes are; process, utility unload,  baseload, and import/export loads. The purpose of the utility unload mode on the control is to typically provides an adjustable time-controlled ramp which is used to lower the import/export mode used within the control. 

When installing your control take into consideration the voltage of nearby devices, if nearby devices have a high voltage it can cause damage to your control which would lead to a potential malfunction. Make sure that while you are using the MSLC-2 model you do not use both sets of voltages that measure inputs, doing so can cause your control to not measure the voltages needed correctly. 

If you are interested in inquiring about the price and availability of model 8440-1877 you may contact us by email at sales@axcontrol.com or by our phone number at (919) 372-8413. Note that we also offer free shipping for your control. 

Reviews For 8440-1877

Internal Review

This model comes with an adjustable time ramp model to help with the control of your device. The device can potentially overheat which will cause your control to not function as needed. Before you operate your control have a certified professional read through the manual. - AX Control Tech Team

Repair Services For 8440-1877

Type Lead Time Price Action
Repair Service 1-2 weeks $2097

Our highly skilled technicians can repair your 8440-1877. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More

8440-1877 Manuals, White Papers, Data Sheets, and Troubleshooting