Single Function Legacy
Single function protection for applications including overcurrent, voltage and frequency, differential, directional, timing and distance.

IFV Time Delay Voltage Relay

IJS Synchronism Check Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the 889 relay.The Type IJS relay is...

JBC/JBCG/JBCV Phase and Ground Overcurrent Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the 350 and P14D relays.The Types JBC,...

SAM Static Timing Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the MVTT14, MVTT15 and PRiMA relays.The SAM...

BDD Percentage Differential with Harmonic Restraint
Manufacturing for this product has been discontinued. As an alternative, please refer to the MVTT14, MVTT15 and PRiMA relays.The SAM...

CEB Offset Mho Directional-distance - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the MVTT14, MVTT15 and PRiMA relays.The SAM...

CEH Loss of Excitation Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the MVTT14, MVTT15 and PRiMA relays.The SAM...

CEX Angle Impedance Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.The Type CEX57 is a family of...

CEY Reactance and Mho Phase Directional-distance - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.The CEY51A and CEY52A are extended...

CEYG – Legacy
Manufacturing for CEYG has been discontinued . As an alternative, please refer to D60 or P443.The CEY51A and CEY52A are extended...

CFD High Speed Differential Relay - Legacy
Manufacturing for CEYG has been discontinued . As an alternative, please refer to D60 or P443.The CEY51A and CEY52A are extended...

CFVB Voltage-balance Relay - Legacy
Manufacturing for CEYG has been discontinued . As an alternative, please refer to D60 or P443.The CEY51A and CEY52A are extended...

CHC Instantaneous Overcurrent - Legacy
Manufacturing for CEYG has been discontinued . As an alternative, please refer to D60 or P443.The CEY51A and CEY52A are extended...

DAR Modular Reclosing Relays (Discontinued)
Manufacturing for CEYG has been discontinued . As an alternative, please refer to D60 or P443.The CEY51A and CEY52A are extended...

DIAC/DIFC/DSFC - Legacy
Single Phase Digital Overcurrent Protection Manufacturing for DIAC/DIFC/DSFC has been discontinued. As an alternative, please refer to the 350, P14N or...

GCX Phase Packaged Directional-distance Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.GCX51 is the type designation for a...

GCY Phase Packaged Directional-distance relay
GCX51 is the type designation for a family of single phase, three-zone phase packaged relays. The first - and second-zone...

GDC Current Detecting Relay (Discontinued)
GCX51 is the type designation for a family of single phase, three-zone phase packaged relays. The first - and second-zone...

GSY Mho Distance Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.The Type CEX57 is...

GXS Automatic Synchronizing Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.The Type CEX57 is...

HFC Instantaneous Overcurrent Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.The Type CEX57 is...

IBC/IBCG Directional Overcurrent Relay - Legacy
Manufacturing for IBC relays have been discontinued. As an alternative, please refer to P14D.Manufacturing for IBCG has been discontinued. As...

MIV II - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the P94V and 350 relays.The MIV II,...

MLJ Digital Synchronism Check Relay - Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the P94V and 350 relays.The MIV II,...

MOV Digital Multifunction Protective Relay - legacy
Manufacturing for MOV has been discontinued.The MOV is a digital multifunction protective relay that provides undervoltage, voltage absence, voltage presence,...

MRS Transmission Line Reclosing System (Discontinued)
Manufacturing for MOV has been discontinued.The MOV is a digital multifunction protective relay that provides undervoltage, voltage absence, voltage presence,...

NBV Voltage Unbalance Relay - Legacy
Manufacturing for MOV has been discontinued.The MOV is a digital multifunction protective relay that provides undervoltage, voltage absence, voltage presence,...

STD Percentage Differential with Harmonic Restraint - Legacy
STD relays are under last-time buy. Orders may be placed until 14th April 2025, and will be fulfilled based upon...

STV Overexcitation Relay - Legacy
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

TCCV Directional Overcurrent Relay
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

TCW Modular Power Reversal Relay
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

TOV Modular Voltage Relay - Legacy
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

MFF Digital Frequency Relay - Legacy
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

ICR Phase Sequence and Undervoltage
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

ICW Power Directional Protection Relay
Manufacturing for STV has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type STV relay is...

IFCS TOC/Voltage Control Relay - Legacy
Manufacturing for IFCS has been discontinued. As an alternative, please refer to P14D, P141 or 889.The Type IFCS relays include an induction...

IJC Current Balance Relay
The Type IJC51E relays are used for the protection of lines and of three- phase machines, especially motors and synchronous...

IJD Percentage Differential Relay - Legacy
The Type IJC51E relays are used for the protection of lines and of three- phase machines, especially motors and synchronous...

KAVR Series - Legacy
Manufacturing for KAVR has been discontinued. As an alternative, please refer to P94V. It is a compact and simple solution for...

KAVS - legacy
Check Synchronising RelayManufacturing for KAVS has been discontinued. As an alternative, please refer to P94V. KAVS is a stand-alone synchronism check relay...

KVTR - Legacy
Manufacturing for KVTR has been discontinued. As an alternative, please refer to P94V.KVTR relays are available for single or multi-shot,3-pole autoreclosing of...

PJG Machine Field Ground Relay - Legacy
Manufacturing for PJG has been discontinued. As an alternative, please refer to P343 with P391 or G60 with GPM-F.The Type...

PJV Instantaneous Voltage Relay - Legacy
Manufacturing for PJG has been discontinued. As an alternative, please refer to P343 with P391 or G60 with GPM-F.The Type...

SBC Static Breaker Backup Relays - Legacy
Manufacturing for PJG has been discontinued. As an alternative, please refer to P343 with P391 or G60 with GPM-F.The Type...

SCA Static Directional Comparison Blocking Auxiliary Relay
The type SCA11A relay consists of two telephone type relay units with their associated static timing and regulating circuits all...

SFF Static Digital Frequency Relay - Legacy
The type SCA11A relay consists of two telephone type relay units with their associated static timing and regulating circuits all...

SGC Negative Sequence Overcurrent - Legacy
Manufacturing for SGC has been discontinued. As an alternative, please refer to P342, 889 or G30.The Type SGC relay is...

SLJ Static Synchronism Check Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.The Type SLJ21A is a static synchronism...