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Relays
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3-Phase Voltage Monitoring Relay
Manufactured by General Industrial Controls Ltd. (GIC) India
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DMS120 3-Phase Voltage Monitoring Relay
The DMS120 monitors 3-phase supplies to guard against supply fault conditions.
Monitoring phase loss, phase sequence, phase asymmetry, under & over voltage, neutral loss, over frequency & under frequency.
The DMS120 is suitable for 3-phase 3 or 4 wire supplies from 125Vac to 500Vac.
- LCD display with back light
- DIN rail mounted, 36mm wide
- Fail safe or non-fail safe relay output
- Adjustable on/off time delay
- Logging of the last 5 previous fault conditions
- Contact rating 5A 240Vac/30Vdc (resistive)
- 1C/O + 1C/O relay outputs
- Power consumption 5VA max.
- -10°C to + 60°C operation
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3 Phase Monitoring Relays
Manufactured by Comadan Produktion A/S Denmark
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RP30 3-Phase Voltage Monitoring Relay
The RP30 monitors 3-phase phase to phase voltages and checks that they are within the adjusted minimum and maximum limits.
- 3 phase systems up to 415V phase-phase
- 2.5VA burden
- Separate adjustments for minimum and maximum limits
- Upper limit from 105% to 120%
- Lower limit from 80% to 95%
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
- Standard options: RP30-110V, RP30-400V, RP30-415V
Others on request
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RP31 Phase Sequence & Phase Symmetry Monitoring Relay
- Monitors correct phase sequence & phase symmetry
- Adjustable asymmetry (5-25%)
- Supply 2.5VA
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
- Standard options: RP31-110V, RP31-400V, RP31-415V
Others on request
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RP32 Phase Failure and Phase Sequence Relay
RP32T Phase Failure Relay
The RP32/RP 32T modules monitor their own 3-phase supply and check that all 3 phases are present.
The RP32 also checks the phase sequence is correct.
- Supplies 3x 230V, 3x 400V and 3x 415V 2.5VA
- Monitors correct phase sequence(RP32)
- 3 second delay on relay release(RP32T)
- Secures against phase breaking
- Lower limit 75% to 85% with phase to neutral
- Lower limit 60% to 70% phase to phase (no neutral)
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
- Standard options: RP32(T)-400V, RP32(T)-415V
Others on request
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RP 33 3 Phase Voltage Monitoring Relay
The RP 33 monitors 3-phase phase to neutral voltages and checks that they are within the adjusted minimum and maximum limits.
- 3 phase systems up to 415V phase-phase
- 2.5VA burden
- Separate adjustments for minimum and maximum limits
- Adjustable time delay 0 to 10secs.
- Upper limit from 105% to 120%
- Lower limit from 80% to 95%
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
- Standard options: RP33-400V, RP33-415V
Others on request
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FP30 3-Phase Under and Over Voltage Relay
FP31 3-Phase Sequence/Phase Asymmetry Relay
FP34 Combined 3-Phase Sequence and Under-Over Voltage Relay
The FP series relays monitor 3-phase voltages and phase sequence/phase asymmetry.
They have a fixed reaction delay and adjustable set point.
- Supplies (ph-ph) 3x 220Vac to 3x 415Vac, 1.5VA
- Frequency 45 - 65Hz
- DIN-rail housing
- Adjustable set point ±5 to ±25% of nominal voltage
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
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RP81 Load Guard Relay
The RP81 is a load monitoring relay for 3-phase motors.
- AC supplies 3x 230V, 3x 400V, 3x415V
- Power consumption 2.5VA
- Supply frequency 40-70Hz
- Monitors power factor/phase angle
- Adjustable phase angle setting cosø 0-0.9
- Adjustable time delay from 0 to 20s
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
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RP91 Power Guard Sequence Relay
The RP91 is used for monitoring single phase and symmetrical 3-phase loads.
- Supplies 230V-415V 3 wire, 127V-240V 4 wire, 2.5VA
- Power metering(U x I x cosØ)
- Current ranges 0.6A to 6A direct connect
- Adjustable time delay 0.1-30s and start-up
- Adjustable reaction delay 0.1-30s
- Metering output indicates power consumption
- 1 pole 8A 250Vac relay output
- -20°C to + 60°C operation
- Standard options: RP91-400, RP91-415
Others on request
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3 Phase Monitoring Relays
Manufactured by Finder
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Finder 70.31 3 Phase Voltage Monitoring Relay
- 380 to 415Vac, 50/60Hz
- Adjustable under voltage, over voltage & window mode (over + under voltage)
- Phase loss & phase rotation monitoring
- Positive safety logic, make contact opens on error
- Single pole CO contact, 6A 250Vac
- DIN rail mounted, 35mm wide
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Finder 70.41 3 Phase Voltage Monitoring Relay
- 380 to 415Vac with or without Neutral, 50/60Hz
- Window mode, adjustable over & under voltage
- Phase loss, phase rotation & asymmetry monitoring
- Selectable Neutral loss monitoring
- Positive safety logic, make contact opens on error
- Single pole CO contact, 6A 250Vac
- DIN rail mounted, 35mm wide
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Finder 70.42 3 Phase Voltage Monitoring Relay
- 380 to 415Vac with Neutral, 50/60Hz
- Adjustable under voltage, over voltage & window mode (over + under voltage)
- Phase loss, phase rotation & asymmetry monitoring
- Neutral loss monitoring
- Positive safety logic, make contact opens on error
- Two pole CO contact, 8A 250Vac
- DIN rail mounted, 35mm wide
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Finder 70.61 & 70.62 3 Phase Voltage Monitoring Relay
- Universal voltage monitoring, 208Vac to 480Vac, 50/60Hz
- Phase loss monitoring, under phase regeneration
- Phase rotation monitoring
- Positive safety logic, make contact opens on error
- 70.61 single pole CO contact, 6A 250V
- 70.62 double pole CO contact, 8A 250V
- DIN rail mounted, 17.5mm wide
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Finder 71.31-400-1021 3 Phase 400V Line Voltage Monitoring Relay
- Detects over & under voltage
- Adjustable under voltage, fixed over voltage trip
- Adjustable trip on-delay, 0.1 to 12 seconds
- Fault memory, switch selectable
- Single pole CO contact, 10A 250V
- DIN rail mounted, 35mm wide
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3-Phase Monitoring Relays
Manufactured by Crouzet
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MWA Phase Failure, Sequence, Asymmetry Relay
- Nominal voltage 3 x 208Vac to 3 x 480Vac
- 3 phase 3 wire, selection: 208/220/380/400/415/440/480Vac
- Operating voltage 183-528Vac
- True rms measurement
- Power 22VA 400V 50Hz
- Adjustable voltage & asymmetry thresholds
- Single pole change over relay, 250Vac 5A
- DIN rail mount, 17.5mm wide
- -20°C to + 50°C operation
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MWU Phase Failure, Sequence & Under Voltage Relay
MWUA Phase Failure, Sequence, Asymmetry, Under & Over Voltage Relay
- Nominal voltage 3 x 208Vac to 3 x 480Vac
- 3 phase 3 wire
- True rms measurement
- Power 1.8VA
- Adjustable voltage & asymmetry thresholds
- Single pole change over relay, 250Vac 5A
- DIN rail mount, 17.5mm wide
- -20°C to + 50°C operation
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H3US 3-Phase 3-Wire phase fail, over/under voltage relay
- Nominal voltage 3 x 220Vac to 3 x 480Vac
- Monitors over & under voltage between phases
- 3 phase 3 wire
- True rms measurement
- Double pole change over relay, 250Vac 5A
- 35mm wide
- -20°C to + 50°C operation
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H3USN 3-Phase 4-Wire phase fail, over/under voltage relay
- Nominal voltage 3 x 120Vac to 3 x 277Vac
- Monitors over & under voltage between phases and neutral
- 3 phase 4 wire
- True rms measurement
- Double pole change over relay, 250Vac 5A
- 35mm wide
- -20°C to + 50°C operation
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HWUA Multifunction Phase Control Relay
Monitors phase sequence, failure, asymmetry, under & over voltage
with independent settings.
- Nominal voltage 3 x 208Vac to 3 x 480Vac
- 3 phase 3 wire
- True rms measurement
- Power 2.9VA
- Double pole change over relay, 250Vac 5A
- 35mm wide
- -20°C to + 50°C operation
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PS R Single Phase Pump Monitoring & Protection Relays
Eliminates the need for level sensors to detect dry running
- PS11-R single phase motors from 3A to 11A
- PS16-R single phase motors from 3A to 16A, with integral CT
- Precise motor heating & cooling memory
- Visual indication of tripping cause
- Adjustable reset time for I<
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PF R Three Phase Pump Monitoring & Protection Relays
Eliminates the need for level sensors to detect dry running
- For 3-phase motors from 1A to 630A and over
- Cable fed through integral CTs
- Precise motor heating & cooling memory
- Visual indication of tripping cause
- Adjustable reset time for cos φ
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PF-RM Timer/reset module
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OD-PF External display module
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LP-FAN-INT Fanox Pump Protection Relay Interface
Provides isolated status outputs and reset input for remote monitoring
- Opto coupler isolated
- Status outputs: power, cos φ, I> & phase asymmetry/sequence error
- Reset input to reset the PF series relay
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Data sheet
