MFR 1

The MFR 1 Series is a family of industrial grade protective relays that offer multiple protective features in a single package.
Using a digital processor to measure true RMS values enables a high degree of measuring accuracy regardless of harmonics, transients or disturbing pulses.

View MFR 1 series application overview

MFR 12

The MFR 12 model is a complete generator protection unit packaged into one compact device. Typical applications are generators and switchgear equipment that require independent protection architecture. Different packages offer additional functionality.

Common Features:

• Configurable threshold/control set points
• Configurable alarm delays
• Two-line Liquid Crystal display
• Operation and alarm indication
• Display of measured values
• English/German display language
• PC and front panel configurable

MFR 12/CP Features:

• 3 configurable relays
• True RMS current measurement
• Independent time-overcurrent (TOC) protection (ANSI# 50/51)
• Ground fault (calculated) protection (ANSI# 50GS/51GS)

MFR 12/51V Features:

• 8 configurable relays
• True RMS current measurement
• True RMS voltage measurement
• Independent time-overcurrent (TOC) protection (ANSI# 50/51)
• Ground fault (calculated) protection (ANSI# 50GS/51GS)
• Inverse time-overcurrent protection (IEC 255)
• Inverse time-overcurrent protection with voltage restraint (ANSI# 51V)

MFR 12/IvIkR Features:

• 8 configurable relays
• Ground fault protection (ANSI# 64G)
  (measured via neutral displacement voltage max. 100 Vac)
• Ground fault protection
  (measured via cable-type transformer max. 35 mA)
• Directional ground fault

MFR 12/50-51GN Features:

• 3 configurable relays
• Ground fault protection (ANSI# 50/51GN)
  (measured via current transformer 1 A)

Certifications / registrations: UL/cUL, CE, GL

Download Product Specs:

English

Japanese

Chinese

Download Product Manuals:

English Manual

Deutsches Handbuch

Download Certificates:

GL - Germanischer Lloyd

Download LeoPC1 Configuration Files:

MFR 12/CP	P/N 8441-1106	P/N 5448-883
MFR 12/51V	P/N 8441-1082	P/N 8441-1006
MFR 12/IvIkR	P/N 8441-1007
MFR 12/50-51GN	P/N 8441-1132	P/N 8441-1008

Refer to the configuration files download page for other P/Ns

Download LeoPC1 Configuration Program

Please refer to the Woodward Worldwide Directory and contact your local sales office for questions about pricing and delivery or product support.

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Note: Information contained herein is intended for and appropriate to the purposes of this publication. Woodward reserves the right to update or otherwise revise any portion of this publication at any time. Technical data and detailed information is available in Woodward product specs. Specific reliance should be given only to information contained in purchase order(s), other contractual document(s), or information otherwise expressly represented in writing by Woodward as correct and accurate for the specific facts, circumstances and applications.