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Relays
Current Monitoring Relays & Current Switches
Manufactured by Carrel Electrade Auckland New Zealand
R-ISW
Data sheet
R-ISW Current Switches
DIN rail mounted, circuit breaker sized housing designed to automatically switch on a secondary load when a primary load current is detected. Two different primary load current inputs are available, terminals with a 16A rating or a 6.5mm diameter through hole for 30A circuits.
The basic R-ISW has a current set point of 200mA & an off-delay of 5 minutes.
A programmable version, the R-ISW-A has an adjustable set point 50mA to 200mA (default) & a selectable off-delay of 1 minute, 5 minutes (default) or disabled.
  • Selectable trip point 50mA to 200mA.
  • Selectable off delay time, 1 minute, 5 inutes or off. R-ISW-A
  • DIN rail mounted 17.5mm wide. R-ISW-A
  • 10A/250Vac C/O contact.
    • Gold contact relay versions available
  • 230Vac supply.

R-IS
Data sheet
R-IS Self Powered AC Current Monitoring Relay
Model R-IS is a totally self powered relay & is ideal for signalling or switching very light current loads.
Current is monitored by feeding the current carrying cable through the hole in the centre of the relay housing.
  • Input from 20 - 50A
  • Contact rating <10W resistive up to 0.5A at 200Vdc or 120Vac
  • Hysteresis 2% of full scale

R-IPX
Data sheet
R-IPX Separately Powered AC Current Monitoring Relays
Current is monitored by feeding the current carrying cable through the hole in the centre of the relay housing.
Each unit has four ranges selected by DIP switches, three model variations cover current rages from 200mA to 100A
R-IPX-200mA-2A, R-IPX-5A-20A, R-IPX-25A-100A
An off delay function can be enabled/disabled by a DIP switch.
The R-IPX relays can be used to monitor current imbalance for earth leakage detection. Note the R-IPX relays should not be used for Earth Leakage life protection.
  • Input ranges from 200mA up to 100A
  • Contact rating:
    • R-IPXL 2A 125Vac
    • R-IPXH 10A 250Vac
  • Hysteresis 1 to 2% of full scale
  • Off delay, 1 minute when enabled
  • Supply:
    • 24V dc
    • 24V, 110V, 230V ac

R-IPL
Data sheet

NOTE The R-IPL & R-IPH series have been replaced by the R-IPX.

R-IPL & R-IPH Separately Powered AC Current Monitoring Relays
Current is monitored by feeding the current carrying cable through the hole in the centre of the relay housing.
  • Input ranges from 5A up to 100A
  • Contact rating:
    • R-IPL 2A at 30Vdc or 0.5A at 120Vac
    • R-IPH 8A at 240Vac
  • Hysteresis 2% of full scale
  • Supply:
    • 24V dc
    • 24V, 110V, 230V ac
NOTE: No longer manufactured, please use the R-IPX.

Current Monitoring Relays
Manufactured by Comadan Produktion A/S Denmark
RC15, RC20
Data sheet
RC 15 AC Current Monitoring Relay
RC 20 DC Current Monitoring Relay

The C-mac modules RC15 & RC20 are current monitoring relays for AC & DC input signals.
The modules are available with several different current ranges.
  • AC supplies 24/115/230Vac 2.5VA
  • DC supplies 12 to 250Vdc
  • Adjustment of set point & hysteresis
  • Ranges 0.05 to 5A
  • Select relay activate or release at set point
  • 2 pole 5A 250Vac relay output
  • -20°C to + 60°C operation

ZB11 base

RC30
Data sheet
RC 30 AC/DC Current Monitoring Relay
The RC30 is a universal current monitoring relay.
Each unit has 3 ranges, automatic detection of AC or DC input signals plus a 24Vdc output for external sensors.
  • AC supplies 24/115/230Vac 2.5VA
  • DC supplies 12 to 250Vdc
  • Automatic detection of AC or DC metering
  • 3 metering ranges from 0.1-2mA to 0.25-6A
  • Adjustment of set point & time delay
  • Selectable relay inversion
  • 1 pole 8A 250Vac relay output
  • -20°C to + 60°C operation

ZB11 base

Current Monitoring Relays
From by Crompton Instruments
250 Series
Data sheet
Crompton 250 Series Current Monitoring Relays
252-PAU Under current, single phase.
252-PAO Over current, single phase.
253-PAD Over/under current, single phase.
253-PAV Under current, 3-phase 3 or 4 wire 400Vac.
253-PAP Over current, 3-phase 3 or 4 wire 400Vac.

Current Monitoring Relays
Manufactured by Crouzet
HIH
Data sheet
Crouzet HIH Current Monitoring Relays
  • Control of AC or DC current
  • Over or under current
  • DIN rail mount, 35mm wide
  • Adjustable from 0.1A to 10A, true rms measurement
  • Double pole changeover relay, 250Vac 5A
  • Adjustable hysteresis 5-50%
  • Adjustable power up delay, adjustable trip delay
  • Supply 24-240V ac/dc
  • -20°C to + 50°C operation

MCI
Data sheet
Crouzet MIC Current Monitoring Relays
  • Built in current transformer
  • DIN rail mount, 17.5mm wide
  • Adjustable from 2A to 20A
  • Single pole changeover relay, 250Vac 5A
  • Hysteresis 15%
  • Supply 24-240V ac/dc
  • -20°C to + 50°C operation

Voltage Monitoring Relays
Manufactured by Comadan Produktion A/S Denmark
RV20
Data sheet
RV 20 DC Voltage Monitoring Relay
The RV20 is a simple voltage monitoring relay.
The module comes in several different ranges to suit most applications.
  • AC supplies 24/115/230Vac 2.5VA
  • DC supplies 12 to 250Vdc
  • Ranges from 3-60mV to 2.5-50V
  • Selectable relay inversion
  • 1 pole 8A 250Vac relay output
  • -20°C to + 60°C operation

ZB11 base

RV30
Data sheet
RV 30 AC/DC Voltage Monitoring Relay
The RV30 is a universal voltage monitoring relay.
Each unit has 3 ranges, automatic detection of AC or DC input signals plus a 24Vdc output for external sensors.
  • AC supplies 24/115/230Vac 2.5VA
  • DC supplies 12 to 250Vdc
  • Automatic detection of AC or DC metering
  • 3 metering ranges from 3-60mV to 25-600V
  • Adjustment of set point & time delay
  • Selectable relay inversion
  • 1 pole 8A 250Vac relay output
  • -20°C to + 60°C operation

ZB11 base

RP10
Data sheet
RP 10 Single Phase Voltage Monitoring Relay
The RP10 monitors a single phase supply voltage & checks that it is within the adjusted minimum & maximum limits.
  • AC supplies 24/115/230Vac 2.5VA
  • DC supply 24Vdc
  • Separate adjustments for minimum & maximum limits
  • Upper limit from 105% to 120%
  • Lower limit from 80% to 95%
  • 2 pole 5A 250Vac relay output
  • -20°C to + 60°C operation

ZB11 base

Single Phase Voltage Monitoring Relay
Manufactured by Finder
70.11
Data sheet
Finder 70.11 Single phase Voltage Monitoring Relay
  • 220 to 240Vac, 50/60Hz
  • Adjustable under voltage, over voltage & window mode (over + under voltage)
  • Positive safety logic, make contact opens on error
  • Single pole CO contact, 10A 250Vac
  • DIN rail mounted, 17.5mm wide

Voltage Monitoring Relays
From by Crompton Instruments
250 Series
Data sheet
Crompton 250 Series Voltage Monitoring Relays
252-PVU Under voltage, single phase, 240Vac, DPDT.
252-PVO Over voltage, single phase, 240Vac, DPDT.
253-PVB Under/over voltage, single phase, 240Vac, DPDT.
252-PVK Under voltage, 3-phase 3 wire 400Vac, DPDT.
252-PVA Over voltage, 3-phase 3 wire 400Vac, DPDT.
253-PVM Under/over voltage, 3-phase 3 wire 400Vac, DPDT.
252-PVV Under voltage, 3-phase 4 wire 400Vac, DPDT.
252-PVP Over voltage, 3-phase 4 wire 400Vac, DPDT.
253-PVE Under/over voltage, 3-phase 3 wire 400Vac, DPDT.

Voltage Monitoring Relays
Manufactured by Crouzet
MUS-12
Data sheet
Crouzet Self Powered Voltage Monitoring Relays
MUS-12 Under or over voltage selectable, 9-15Vdc.
MUS-80 Under or over voltage selectable, 65-260V ac/dc.
MUS-260 Under or over voltage selectable, 20-80V ac/dc.
MUSF-80 Under or over voltage window, 65-260V ac/dc.
MUSF-260 Under or over voltage window, 20-80V ac/dc.

HUL & HUH
Data sheet
Crouzet Separately powered Voltage Monitoring Relays
HUL Under or over voltage, 0.2-60V ac/dc, 24-240V ac/dc supply, DPDT.
HUH Under or over voltage, 15-600V ac/dc, 24-240V ac/dc supply, DPDT.
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