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Three Phase Relays

 Most products carry recognised approvals including UL, CUL, CSA, VDE.....

Three Phase Relays
Section available
in PDF format.
Click here to view...		 Three Phase Relays - We design and manufacture a number of multi function Three Phase Relays:

phase monitor; 3 phase relay; phase failure; phase sequence; phase sequence relay; phase failure relay; 3 phase under voltage; phase loss; three phase monitor; 3 phase monitor; three phase relay; 3 phase over voltage; over and under voltage relay.

These Three Phase Relays are supplied with various mountings:
  • The M1 series either DIN rail or surface mounting
  • The M3 series either DIN rail or surface mounting
  • The M5 series either DIN rail or surface mounting
  • The B1 series with 11 pin mounting
  • The B8 series with 8 pin mounting
  • The 45 series for DIN rail mounting
  • The 70 series for either surface or DIN rail mounting
See below for our complete range of Three Phase Relay products.

Display: [All | New | Home] Scroll to right to see all products. Click in title area to view PDF file if available.

MX & M1 Series   DIN Rail & Surface Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.89 W.17.5 D.59
Type No
Three Phase Relays MXPRC-S New Product
Three Phase Relays MXPRC New Product
Three Phase Relays MXPRT New Product
Three Phase Relays MXPRF New Product
Description Three Phase Under & Over Voltage Relay Three Phase Under & Over Voltage Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Sequence/Loss Relay
Function Voltage (True RMS) Voltage (True RMS) Voltage (True RMS) Voltage (True RMS)
Under / Over Voltage Under & Over Under & Over Under Under (Fixed)
Adjustable Trip Level Yes Yes Yes No
Phase Loss (Failure) Yes Yes Yes Yes
Neutral Loss No No No No
Phase Sequence (Rotation) Yes No Yes Yes
Phase Asymmetry No No No No
Time Delay (from fault) 0.2 - 10S 0.2 - 10S 0.2 - 10S ~100mS
Output 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay
Output Rating 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1)
Integral Transformer No No No No
Supply Voltage Un/U Un: 110, 208, 220, 380, 400, 415VAC Un: 110, 208, 220, 380, 400, 415VAC U: 77 - 143, 161 - 300, 280 - 520VAC U: 77 - 143, 161 - 300, 280 - 520VAC
  - - - -
  - - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply

M1 Series   DIN Rail & Surface Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.89 W.17.5 D.59
Type No
Three Phase Relays M1PR
Three Phase Relays M1PRF
Three Phase Relays M1PRF-4W
Three Phase Relays M1PRC-S
Three Phase Relays M1PRC-S-4W
Three Phase Relays M1PRT
Three Phase Relays M1PRT-4W
Three Phase Relays M1TVR-4W
Description Three Phase Sequence/Loss Relay Three Phase Sequence/Loss Relay Three Phase Sequence/Loss Relay Three Phase Under & Over Voltage Relay Three Phase Under & Over Voltage Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage Relay
Function Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage
Under / Over Voltage - Under (fixed at 70% of 400V) Under (fixed at 70% of 230V) Under & Over Under & Over Under Under Under
Adjustable Trip Level No No No Yes Yes Yes Yes No
Phase Loss (Failure) Yes Yes Yes Yes Yes Yes Yes Yes
Neutral Loss No No Yes No Yes No Yes Yes
Phase Sequence (Rotation) Yes Yes Yes Yes Yes Yes Yes No
Phase Asymmetry No No No No No No No No
Time Delay (from fault) ˜100mS ˜100mS ˜100mS 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) 5-15 mins (delay on)
Output 1 x SPDT Relay SPDT Relay SPDT Relay SPDT Relay SPDT Relay SPDT Relay SPDT Relay 1 x SPDT Relay
Output Rating 6A @ 250VAC 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 6A @ 250VAC
Integral Transformer No No No No No No No No
Supply Voltage Un/U 200 - 450VAC U: 280 - 520V phase to phase U: 161 - 300V phase to neutral Un: 380, 400V phase to phase Un: 220, 230V phase to neutral U: 280 - 520V phase to phase U: 161 - 300V phase to neutral 380V AC
  - - - - - - - -
  - - - - - - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply

M3 Series - Key Range With SPDT Output    DIN Rail & Surface Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.89 W.35 D.59
Type No
Three Phase Relays M3PR
Three Phase Relays M3PR-4W
Three Phase Relays M3PRT
Three Phase Relays M3PRT-4W
Three Phase Relays M3PRC
Three Phase Relays M3PRC-4W
Three Phase Relays M3PRC-S
Three Phase Relays M3PRC-S-4W
Description Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage/Loss Relay Three Phase Under & Over Voltage/Loss Relay Three Phase Under & Over Voltage/Loss/Sequence Relay Three Phase Under & Over Voltage/Loss/Sequence Relay
Function Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage
Under / Over Voltage Under Under Under Under Under & Over Under & Over Under & Over Under & Over
Adjustable Trip Level Yes Yes Yes Yes Yes Yes Yes Yes
Phase Loss (Failure) Yes Yes Yes Yes Yes Yes Yes Yes
Neutral Loss No Yes No Yes No Yes No Yes
Phase Sequence (Rotation) Yes Yes Yes Yes No No Yes Yes
Phase Asymmetry No No No No No No No No
Time Delay (from fault) ˜1S ˜1S 0.2 - 10S 0.2 - 10S 0.2 - 10S 0.2 - 10S 0.2 - 10S 0.2 - 10S
Output 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay
Output Rating 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC
Integral Transformer No No No No No No No No
Supply Voltage Un/U 300 to 500VAC 300 to 500VAC 300 to 500VAC 300 to 500VAC 220, 380, 400, 415VAC 220, 380, 400, 415VAC 220, 380, 400, 415VAC 220, 380, 400, 415VAC
  180 to 260VAC 180 to 260VAC 180 to 260VAC 180 to 260VAC - - - -
  - - - - - - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply

M3 Series - Key Range With DPDT Output   DIN Rail & Surface Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.89 W.35 D.59
Type No
Three Phase Relays M3PRT-2 New Product
Three Phase Relays M3PRT-2-4W New Product
Three Phase Relays M3PRC-S-2
Three Phase Relays M3PRC-S-2-4W
Description Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage/Loss/Sequence Relay Three Phase Under & Over Voltage/Loss/Sequence Relay
Function Voltage Voltage Voltage Voltage
Under / Over Voltage Under Under Under & Over Under & Over
Adjustable Trip Level Yes Yes Yes Yes
Phase Loss (Failure) Yes Yes Yes Yes
Neutral Loss No Yes No Yes
Phase Sequence (Rotation) Yes Yes Yes Yes
Phase Asymmetry No No No No
Time Delay (from fault) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable)
Output DPDT Relay DPDT Relay DPDT Relay DPDT Relay
Output Rating 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1)
Integral Transformer No No No No
Supply Voltage Un/U U: 280 - 520V phase to phase U: 161 - 300V phase to neutral Un: 380, 400V phase to phase Un: 220, 230V phase to neutral
  - - - -
  - - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply

M3 Series - High Voltage And Specialist Range   DIN Rail & Surface Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.89 W.35 D.59
Type No
Three Phase Relays M3PRT-600V New Product
Three Phase Relays M3PRT-4W-346V New Product
Three Phase Relays M3PRC-S-4W-332V-346V New Product
Three Phase Relays M3PA
Three Phase Relays M3PA-4W
Three Phase Relays M3PPI
Description Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage/Loss/Sequence Relay Three Phase Asymmetry Relay Three Phase Asymmetry Relay Three Phase Sequence/Loss Monitor
Function Voltage Voltage Voltage Asymmetry Asymmetry Sequence / Failure Ind
Under / Over Voltage Under Under Under & Over - - -
Adjustable Trip Level Yes Yes Yes ± 25% ± 25% No
Phase Loss (Failure) Yes Yes Yes Yes Yes Indication Only
Neutral Loss No Yes Yes No Yes No
Phase Sequence (Rotation) Yes Yes Yes Yes Yes Indication Only
Phase Asymmetry No No No Yes Yes -
Time Delay (from fault) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) 0.2 - 10S (adjustable) ˜1S ˜1S -
Output SPDT Relay SPDT Relay DPDT Relay 1 x SPDT Relay 1 x SPDT Relay -
Output Rating 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC (AC1) 8A @ 250VAC 8A @ 250VAC -
Integral Transformer No No No No No No
Supply Voltage Un/U U: 336 - 624V phase to phase U: 194 - 360V phase to neutral Un: 332, 346V phase to neutral 220, 380, 415VAC 220, 380, 415VAC 300 to 500VAC
  - - (based on 575V and 600V - - 180 to 260VAC
  - - phase to phase) - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply

B1 Series   11 Pin Plug-In
Click to enlarge
Three Phase Relays
DIMS: (mm) H.80 W.40 D.92
Type No
Three Phase Relays B1PA
Three Phase Relays B1PR
Three Phase Relays B1PRF
Three Phase Relays B1PRC
Three Phase Relays B1PRC-4W
Description Three Phase Asymmetry Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage Relay Three Phase Under & Over Voltage Relay
Function Asymmetry Voltage Voltage Voltage Voltage
Under / Over Voltage - Under (fixed 70%) Under (fixed 70%) Under & Over Under & Over
Adjustable Trip Level 2-12% ± 15% of Un No Yes Yes
Phase Loss (Failure) Yes Yes Yes Yes Yes
Neutral Loss No No No No Yes
Phase Sequence (Rotation) Yes Yes Yes No No
Phase Asymmetry Yes No No No No
Time Delay (from fault) ˜200mS ˜30mS ˜30mS 0.2 - 10S 0.2 - 10S
Output 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay
Output Rating 10A @ 250VAC 10A @ 250VAC 10A @ 250VAC 10A @ 250VAC 10A @ 250VAC
Integral Transformer Yes Yes Yes Yes Yes
Supply Voltage Un/U 400VAC 220, 400, 480VAC 220, 380, 400, 440, 480VAC 220, 380, 400, 415, 480VAC 220, 380, 400, 415VAC
  - - - - -
  - - - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply

B8 Series   8 Pin Plug-In
Click to enlarge
Three Phase Relays
DIMS: (mm) H.80 W.40 D.92
Type No
Three Phase Relays B8PM
Three Phase Relays B8PM-2
Three Phase Relays B8PR
Three Phase Relays B8PRC
Three Phase Relays B8PMU New Product
Three Phase Relays B8PMC New Product
Description Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage Relay
Function Voltage Voltage Voltage Voltage Voltage Voltage
Under / Over Voltage Under Under Under Under & Over Under Under & Over
Adjustable Trip Level Yes Yes Yes Yes Yes Yes
Phase Loss (Failure) Yes Yes Yes Yes Yes Yes
Neutral Loss No No No No No No
Phase Sequence (Rotation) Yes Yes Yes No Yes Yes
Phase Asymmetry No No No No No No
Time Delay (from fault) ˜1S ˜1S ˜1S 0.2 - 10S 0.2 - 10S 0.2 - 10S
Output 1 x SPDT Relay 1 x SPNC, 1 x SPNO Relay 1 x SPDT Relay 1 x SPDT Relay 1 x SPDT Relay (US Pin-Out) 1 x SPDT Relay (US Pin-Out)
Output Rating 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 10A @ 250VAC 10A @ 250VAC
Integral Transformer No No No No No No
Supply Voltage Un/U 325 - 500VAC 325 - 500VAC 300 - 500VAC 220, 380, 400, 415VAC 84-156VAC, 154-286VAC 120, 208, 240, 460, 480VAC
  - - 180 - 260VAC - 242-450VAC, 308-572VAC -
  - - 90 - 140VAC - - -
Monitoring Range Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply

45 Series   DIN Rail Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.78 W.45 D.99
Type No
Three Phase Relays 45080
Three Phase Relays 45081
Three Phase Relays 45085
Three Phase Relays 45085-4W
Three Phase Relays 45095
Three Phase Relays 45PTR
Three Phase Relays 45PUVR
Three Phase Relays 45PUVR-4W
Three Phase Relays 45POVR
Three Phase Relays 45POVR-4W
Three Phase Relays 45PSR
Description Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under Voltage/Sequence/Loss Relay Three Phase Under & Over Voltage Relay Three Phase Under & Over Voltage Relay Three Phase Asymmetry Relay Three Phase Sequence/Loss Relay Three Phase Under Voltage Relay Three Phase Under Voltage Relay Three Phase Over Voltage Relay Three Phase Over Voltage Relay Three Phase Sequence/Loss Relay
Function Voltage Voltage Voltage Voltage Asymmetry Incl. Thermistor Voltage Voltage Voltage Voltage Sequence
Under / Over Voltage Under (fixed 60%) Under (fixed 70%) under & Over Under & Over - Under (fixed 60%) Under Under Over Over -
Adjustable Trip Level No ± 15% of Un ± 10% of Un ± 10% of Un 2-12% No 75-100% 75-100% 100-125% 100-125% No
Phase Loss (Failure) Yes Yes Yes Yes Yes Yes Yes Yes No No Yes
Neutral Loss No No No Yes No No No Yes No No No
Phase Sequence (Rotation) Yes Yes No No Yes Yes No No No No Yes
Phase Asymmetry No No No No Yes No No No No No No
Time Delay (from fault) 0.1 - 10S ˜30mS 0.1 - 10S 0.1 - 10S ˜200mS ˜15mS ˜200mS ˜200mS ˜200mS ˜200mS ˜200mS
Output 1 x SPDT Relay 1 x SPDT Relay 2 x SPDT Relays 2 x SPDT Relays 1 x SPDT Relay 2 x SPNO Relays 1 x DPDT Relay 1 x DPDT Relay 1 x DPDT Relay 1 x DPDT Relay 1 x DPDT Relay
Output Rating 10A @ 250VAC 10A @ 250VAC 8A @ 250VAC 8A @ 250VAC 10A @ 250VAC 10A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC
Integral Transformer Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Supply Voltage Un/U 24, 110, 230, 400VAC 220, 400, 480, 600VAC 220, 380/400/415, 480, 600VAC 220, 380/400/415VAC 400VAC 24, 110, 230, 400VAC 220, 380, 400VAC 220, 380, 400VAC 220, 380, 400VAC 220, 380, 400VAC 220, 380, 400VAC
  - - - - - - - - - - -
  - - - - - - - - - - -
Monitoring Range 400VAC Monitors own supply Monitors own supply Monitors own supply Monitors own supply 400VAC Monitors own supply Monitors own supply Monitors own supply Monitors own supply Monitors own supply

70 Series   DIN Rail & Surface Mtg
Click to enlarge
Three Phase Relays
DIMS: (mm) H.70 W.100 D.114
Type No
Three Phase Relays 70PCVR
Three Phase Relays 70PCVR-4W
Three Phase Relays 70PUCR
Three Phase Relays 70POCR
Description Three Phase Under & Over Voltage Relay Three Phase Under & Over Voltage Relay Three Phase Current Relay Three Phase Current Relay
Function Voltage Voltage Current Current
Under / Over Voltage Under & Over Under & Over Under Current Over Current
Adjustable Trip Level Yes Yes Yes Yes
Phase Loss (Failure) Yes Yes Yes No
Neutral Loss No Yes Yes No
Phase Sequence (Rotation) No No No No
Phase Asymmetry No No No No
Time Delay (from fault) ˜200mS ˜200mS 0.2 - 10S 0.2 - 10S
Output 2 x DPDT Relays 2 x DPDT Relays 1 x DPDT Relay 1 x DPDT Relay
Output Rating 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC 8A @ 250VAC
Integral Transformer Yes Yes Yes Yes
Supply Voltage Un/U 220, 380, 400VAC 220, 380, 400VAC 110, 230, 400VAC 110, 230, 400VAC
  - - - -
  - - - -
Monitoring Range Monitors own supply Monitors own supply 5A (0-80%) 5A (40-120%)


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