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Ground Fault Products for Grounded and HRG Systems

Multiple Circuits and Branch Monitoring

BENDER's RCMS series of ground fault monitors are designed to monitor up to 12 separate branches or circuits from a single device. Both AC and DC systems are supported. RCMS modules feature detailed digital displays, optional separate contact outputs, and compatibility with BENDER's remote communication system.

  • Description
  • Features
  • Applications
  • Ordering Info
  • Downloads
  • Accessories

  • RCMS460

    Multi-channel, digital ground fault monitor for grounded and high-resistance grounded AC/DC systems

    The RCMS460 monitors for ground faults in grounded and high-resistance grounded AC/DC systems, both single- and three-phase. The RCMS460 is capable of monitoring up to twelve separate systems or branches from one device. Each channel may be set to a separate alarm value. AC circuits may be set to an alarm value of 6 mA to 20 A. DC and mixed AC/DC circuits may be set to an alarm value of 10 mA to 10 A. One DPDT contact output for the device may be set to normally energized or normally de-energized operation, latching or non-latching.

    The detailed LCD display is capable of showing a detailed analysis of the system, including: a chart showing each channel's ground fault current in real-time; individual alarm messages for each channel; and an easy-to-use menu for settings.

    The RCMS460 features three separate time delays - a response delay (0 - 999 s), a startup delay (0 - 99 s), and a delay on release (0 - 999 s). Additional features include a harmonics analysis chart, selectable filtering options, and compatibility with BENDER's gateway devices for connecting to Ethernet and Modbus/TCP networks.

  • Key Features: RCMS460

    • Ground fault monitoring for grounded and high-resistance grounded AC/DC systems
    • Up to 12 separate channels / circuits monitored by one device
    • Detailed digital display showing values in real-time for all channels
    • Adjustable response value ranges, as high as 20 A and as low as 6 mA
    • Many different current transformer sizes available
    • Built-in test and reset button
    • Connections for external test and reset
    • Adjustable time delay, individually adjustable for each channel
    • Latching or non-latching operation, selectable
    • Harmonics analysis
    • Selectable filtering options
    • 1 DPDT Form-C contact output, normally energized or de-energized operation, selectable
    • Compatible with BENDER's advanced communication system

  • Applications: RCMS460

    • Ground fault detection in grounded and high-resistance AC/DC systems
    • Pure DC systems, mixed AC/DC systems
    • Systems with variable frequency drives (VFDs)
    • Motors and motor control systems
    • Power distribution systems
    • Alarm systems, safety devices
    • General industrial systems
    • Controls and control systems
    • Heat tracing systems

  • Ordering information: RCMS460

    NameSupply VoltageOrdering Number
    RCMS460-D-1AC 16...72 V (42...460 Hz) DC 16...94 V B94053001
    RCMS460-D-2AC 70...276 V (42...460 Hz) DC 70...276 V B94053002

  • Downloads: RCMS460

    Document Name Language Date Download
    Technical Bulletin / Datasheet
    RCMS Series    		 English 11.2012
    Download
    Installation Bulletin
    RCMS Series    		 English 10.2012
    Download
    User Manual
    RCMS Series    		 English 03.2012
    Download
    Brochure
    Overview - Protection Relays    		 English 04.2013
    Download

  • Accessories: RCMS460

    Remote Communication Systems

    Ethernet and Modbus/TCP communication gateway for BENDER devices

    NameOrdering Number
    COM460IPB95061010
    AC Current Transformers

    Current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    W0-S20B911787
    W1-S35B911731
    W2-S70B911732
    W3-S105B911733
    W4-S140B911734
    W5-S210B911735
    AC/DC Current Transformers

    Current transformers for RCMA420, RCMA423, and RCMS series ground fault monitors (AC/DC systems)

    NameOrdering Number
    W20ABB98080008
    W35ABB98080016
    W60ABB98080016
    W120ABB98080041
    W210ABB98080040
    Rectangular AC Current Transformers

    Rectangular current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    WR70x175B98080609
    WR115x305B98080610
    Split-Core AC Current Transformers

    Split-core current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    WS20x30B98080601
    WS50x80B98080603
    WS80x120B98080606
    Flexible AC Current Transformers

    Flexible split-core current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    WF170-1B98080201
    WF170-2B98080202
    WF250-1B98080203
    WF250-2B98080204
    WF500-1B98080205
    WF500-2B98080206
    WF800-1B98080207
    WF800-2B98080208
    WF1200-1B98080209
    WF1200-2B98080210
    Power Supplies

    Power supply for "AB" type current transformers

    NameOrdering Number
    AN420-2B94053100
    Connector Cables

    Connector cables for RCMA and RCMS series ground fault monitors

    NameOrdering Number
    WXS-100B511100028
    WXS-250B511100029
    WXS-500B511100030
    WXS-1000B511100027
    WXS-1500B511100035
  • Description
  • Features
  • Applications
  • Ordering Info
  • Downloads
  • Accessories

  • RCMS490

    Multi-channel, digital ground fault monitor for grounded and high-resistance grounded AC/DC systems

    The RCMS490 monitors for ground faults in grounded and high-resistance grounded AC/DC systems, both single- and three-phase. The RCMS460 is capable of monitoring up to twelve separate systems or branches from one device. Each channel may be set to a separate alarm value. AC circuits may be set to an alarm value of 6 mA to 20 A. DC and mixed AC/DC circuits may be set to an alarm value of 10 mA to 10 A. One DPDT contact output for the device may be set to normally energized or normally de-energized operation, latching or non-latching. The RCMS490 also features 12 separate SPST relay outputs, one for each channel.

    The detailed LCD display is capable of showing a detailed analysis of the system, including: a chart showing each channel's ground fault current in real-time; individual alarm messages for each channel; and an easy-to-use menu for settings.

    The RCMS460 features three separate time delays - a response delay (0 - 999 s), a startup delay (0 - 99 s), and a delay on release (0 - 999 s). Additional features include a harmonics analysis chart, selectable filtering options, and compatibility with BENDER's gateway devices for connecting to Ethernet and Modbus/TCP networks.

  • Key Features: RCMS490

    • Ground fault monitoring for grounded and high-resistance grounded AC/DC systems
    • Up to 12 separate channels / circuits monitored by one device
    • Detailed digital display showing values in real-time for all channels
    • Adjustable response value ranges, as high as 20 A and as low as 6 mA
    • Many different current transformer sizes available
    • Built-in test and reset button
    • Connections for external test and reset
    • Adjustable time delay, individually adjustable for each channel
    • Latching or non-latching operation, selectable
    • Harmonics analysis
    • Selectable filtering options
    • 1 DPDT Form-C contact output, normally energized or de-energized operation, selectable
    • 12 SPST contact outputs, one for each channel (N/O or N/C, selectable)
    • Compatible with BENDER's advanced communication system

  • Applications: RCMS490

    • Ground fault detection in grounded and high-resistance AC/DC systems
    • Pure DC systems, mixed AC/DC systems
    • Systems with variable frequency drives (VFDs)
    • Motors and motor control systems
    • Power distribution systems
    • Alarm systems, safety devices
    • General industrial systems
    • Controls and control systems
    • Heat tracing systems

  • Ordering information: RCMS490

    NameSupply VoltageOrdering Number
    RCMS490-D-1AC 16...72 V (42...460 Hz) DC 16...94 V B94053005
    RCMS490-D-2AC 70...276 V (42...460 Hz) DC 70...276 V B94053006

  • Downloads: RCMS490

    Document Name Language Date Download
    Technical Bulletin / Datasheet
    RCMS Series    		 English 11.2012
    Download
    Installation Bulletin
    RCMS Series    		 English 10.2012
    Download
    User Manual
    RCMS Series    		 English 03.2012
    Download
    Brochure
    Overview - Protection Relays    		 English 04.2013
    Download

  • Accessories: RCMS490

    Remote Communication Systems

    Ethernet and Modbus/TCP communication gateway for BENDER devices

    NameOrdering Number
    COM460IPB95061010
    AC Current Transformers

    Current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    W0-S20B911787
    W1-S35B911731
    W2-S70B911732
    W3-S105B911733
    W4-S140B911734
    W5-S210B911735
    AC/DC Current Transformers

    Current transformers for RCMA420, RCMA423, and RCMS series ground fault monitors (AC/DC systems)

    NameOrdering Number
    W20ABB98080008
    W35ABB98080016
    W60ABB98080016
    W120ABB98080041
    W210ABB98080040
    Rectangular AC Current Transformers

    Rectangular current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    WR70x175B98080609
    WR115x305B98080610
    Split-Core AC Current Transformers

    Split-core current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    WS20x30B98080601
    WS50x80B98080603
    WS80x120B98080606
    Flexible AC Current Transformers

    Flexible split-core current transformers for RCM and RCMS series ground fault monitors (AC only systems)

    NameOrdering Number
    WF170-1B98080201
    WF170-2B98080202
    WF250-1B98080203
    WF250-2B98080204
    WF500-1B98080205
    WF500-2B98080206
    WF800-1B98080207
    WF800-2B98080208
    WF1200-1B98080209
    WF1200-2B98080210
    Power Supplies

    Power supply for "AB" type current transformers

    NameOrdering Number
    AN420-2B94053100
    Connector Cables

    Connector cables for RCMA and RCMS series ground fault monitors

    NameOrdering Number
    WXS-100B511100028
    WXS-250B511100029
    WXS-500B511100030
    WXS-1000B511100027
    WXS-1500B511100035