Digital Ground fault monitor for grounded AC systems

The RCM420 monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC systems and pulsed DC type systems (Type A). Features include adjustable setpoint from 10mA…10A, LCD display, adjustable time delay, fault storage, 2 SPDT alarm relays which can be set for normally energized and normally de-energized operation. An external BENDER current transformer is required for operation.

  Also required: Current transformer from the W0...W5 series. Datasheet
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC systems

The RCM470LY monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC systems and pulsed DC type systems (Type A). Features include adjustable setpoint from either 6mA...600mA or 10mA…10A, LED meter display (0-100%), adjustable time delay from 0...10sec, fault storage, 1 DPDT alarm relay which can be set for normally energized and normally de-energized operation. An external BENDER current transformer is required for operation.

  Also required: Current transformer from the W0...W5 series. Datasheet
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC systems with internal CT

The RCM475LY monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC systems and pulsed DC type systems (Type A). Features include adjustable setpoint from either 6mA...600mA or 10mA…10A, LED meter display (0-100%), adjustable time delay from 0...10sec, fault storage, 1 DPDT alarm relay which can be set for normally energized and normally de-energized operation. Includes a built-in 18mm current transformer.

  Unit uses internal current transformer; external CT not required.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC systems

The RCM475YM2 monitors for ground fault leakage current in grounded and high-resistance grounded single and three-phase AC and pulsed DC systems (Type A). Features include two seperately adjustable response values to distinguish between pre-warning and alarm, adjustable time delay, fault storage, 2 DPDT alarm relays which can be set for normally energized and normally de-energized operation. Includes a built-in 18mm current transformer.

  Unit uses internal current transformer; external CT not required.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC systems

The RCM460Y monitors for ground fault leakage current in grounded and high-resistance grounded single and three-phase AC and pulsed DC systems (Type A). Features include adjustable setpoint from 30mA...300mA, adjustable time delay from 0...1 s, 1 DPDT alarm relay which can be set for normally de-energized operation. An external BENDER current transformer is required for operation.

  Also required: Current transformer from the W0...W5 series. Datasheet
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC systems with internal CT

The RCM465Y monitors for ground fault leakage current in grounded and high-resistance grounded single and three-phase AC and pulsed DC systems (Type A). Features include adjustable setpoint from 30mA...300mA, adjustable time delay from 0...1 s, 1 DPDT alarm relay which can be set for normally de-energized operation. Includes a built-int 18mm current transformer.

  Unit uses internal current transformer; external CT not required.

 Technical Specs                 Datasheet

Digital ground fault monitor for grounded AC/DC systems

The RCMA420 monitors for ground fault leakage current in grounded and high-resistance grounded single- and three-phase AC, pulsed DC, and pure DC systems (Type B). Features include adjustable setpoint from 10ma...10A, LCD display, adjustable time delay, fault storage, 2 SPDT alarm relays which can be set for normally energized and normally de-energized operation. An external BENDER current transformer is required for operation.

  Also required: Current transformer from the WAB series. Datasheet
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC/DC systems

The RCMA470LY monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC, pulsed DC, and pure DC type systems (Type B). Features include two seperately adjustable setpoints from 30mA...3mA for the main alarm and 50% of the set value for the pre-alarm, LED meter display (0-100%), adjustable time delay from 0...1 s for the pre-alarm and 0...10sec for the main alarm, fault storage, 2 DPDT alarm relays which can be set for normally energized and normally de-energized operation. An external BENDER current transformer is required for operation.

The RCMA470LY has a lower starting setpoint range than the RCMA471LY, and uses smaller current transformers.

  Also required: Current transformer from the WB series. Datasheet
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC/DC systems with internal CT

The RCMA475LY monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC, pulsed DC, and pure DC type systems (Type B). Features include two seperately adjustable setpoints from 30mA...500mA for the main alarm and 50% of the set value for the pre-alarm, LED meter display (0-100%), adjustable time delay from 0...1 s for the pre-alarm and 0...10sec for the main alarm, fault storage, 2 DPDT alarm relays which can be set for normally energized and normally de-energized operation. Includes a built-in 18mm current transformer.

  Unit uses internal current transformer; external CT not required.

 Technical Specs                 Datasheet

Ground fault monitor for grounded AC/DC systems

The RCMA471LY monitors for ground fault leakage current in grounded & high-resistance grounded single & three-phase AC, pulsed DC, and pure DC type systems (Type B). Features include two seperately adjustable setpoints from 100mA...3mA for the main alarm and 50% of the set value for the pre-alarm, LED meter display (0-100%), adjustable time delay from 0...1 s for the pre-alarm and 0...10sec for the main alarm, fault storage, 2 DPDT alarm relays which can be set for normally energized and normally de-energized operation. An external BENDER current transformer is required for operation.

The RCMA471LY has a higher starting setpoint range than the RCMA470LY, but can use larger sized current transformers.

  Also required: Current transformer from the WB series. Datasheet
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for up to 12 grounded AC/DC systems

The RCMS460-D monitors for ground fault leakage current in grounded and high-resistance grounded single- and three-phase systems. The unit can switch between two different modes of operation: Type A (AC and pulsed DC signals) and Type B (AC, pulsed DC, and pure DC). Up to 12 different channels may be monitored simultaneously by one unit and one external BENDER current transformer for each sub-system. The RCMS460-D has large response value ranges (10mA...10A for Type B, 6mA...20A for Type A).

The RCMS460-D includes a digital LCD display with harmonics analysis and data logging, one common alarm relay, and the ability to connect the system via a FTC protocol converter to a network for monitoring on a computer.

  Also required: Current transformer: W0...W5 (AC only) or WAB (AC and/or DC)
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for up to 12 additional grounded AC/DC systems

The RCMS460-L monitors for ground fault leakage current in grounded and high-resistance grounded single- and three-phase systems. The unit can switch between two different modes of operation: Type A (AC and pulsed DC signals) and Type B (AC, pulsed DC, and pure DC). Up to 12 different channels may be monitored simultaneously by one unit and one external BENDER current transformer for each sub-system. The RCMS460-D has large response value ranges (10mA...10A for Type B, 6mA...20A for Type A).

The RCMS460-L includes a seven-segment display and one common alarm relay.

  Also required: Current transformer: W0...W5 (AC only) or WAB (AC and/or DC)
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for up to 12 grounded AC/DC systems

The RCMS490-D monitors for ground fault leakage current in grounded and high-resistance grounded single- and three-phase systems. The unit can switch between two different modes of operation: Type A (AC and pulsed DC signals) and Type B (AC, pulsed DC, and pure DC). Up to 12 different channels may be monitored simultaneously by one unit and one external BENDER current transformer for each sub-system. The RCMS460-D has large response value ranges (10mA...10A for Type B, 6mA...20A for Type A).

The RCMS490-D includes a digital LCD display with harmonics analysis and data logging, seperate alarm relays for each channel, and the ability to connect the system via a FTC protocol converter to a network for monitoring on a computer.

  Also required: Current transformer: W0...W5 (AC only) or WAB (AC and/or DC)
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet

Ground fault monitor for up to 12 additional grounded AC/DC systems

The RCMS490-L monitors for ground fault leakage current in grounded and high-resistance grounded single- and three-phase systems. The unit can switch between two different modes of operation: Type A (AC and pulsed DC signals) and Type B (AC, pulsed DC, and pure DC). Up to 12 different channels may be monitored simultaneously by one unit and one external BENDER current transformer for each sub-system. The RCMS460-D has large response value ranges (10mA...10A for Type B, 6mA...20A for Type A).

The RCMS490-L includes a seven-segment display and seperate alarm relays for each channel.

  Also required: Current transformer: W0...W5 (AC only) or WAB (AC and/or DC)
  Use our CT Selector to find the correct and optimal CT for your system.

 Technical Specs                 Datasheet