Phase Monitoring Relays:

98 Products Found

Element14 offers phase monitoring relays that protect three-phase systems from phase loss, phase reversal and imbalance. These relays are designed to prevent motor damage and ensure stable operation.

Phase monitoring relays measure phase sequence, phase loss and voltage balance in three-phase systems. If any discrepancy is detected, the relay disconnects the load to prevent motor failure.

Key Features:

  • Phase loss and reversal protection for motors and equipment.
  • Adjustable voltage range for versatile use.
  • Compact design for easy installation in control panels.

Applications:

  • Industrial Motors – Ensure proper phase alignment and prevent damage.
  • HVAC Systems – Maintain stable operation in multi-phase compressors.
  • Renewable Energy – Monitor phase balance in solar and wind systems.
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2295793

RoHS

Each
1+
$242.680
($279.082)
5+
$234.400
($269.560)
10+
$229.720
($264.178)
Min: 1 / Mult: 1
70 Series
SPDT
10A
DIN Rail, Panel
Screw
-
250VAC
415VAC
-
3 Phase
11VA
380VAC
415VAC
2780440

RoHS

Each
1+
$802.690
($923.0935)
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase
1.5W
15V
500V
4236649

RoHS

Each
1+
$201.230
($231.4145)
5+
$197.210
($226.7915)
10+
$193.180
($222.157)
Min: 1 / Mult: 1
MWS Series
SPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
183V
528V
3050817

RoHS

Each
1+
$179.680
($206.632)
5+
$176.090
($202.5035)
10+
$172.500
($198.375)
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
Screw
-
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
1895997

RoHS

Each
1+
$168.370
($193.6255)
5+
$165.010
($189.7615)
10+
$161.640
($185.886)
Min: 1 / Mult: 1
-
SPST-NO
4A
DIN Rail
Screw
-
250VAC
130VAC
-
1 Phase
-
110VAC
130VAC
2813563
Each
1+
$237.220
($272.803)
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
-
240VAC
480VAC
-
3 Phase
6W
190VAC
480VAC
1896002

RoHS

Each
1+
$194.450
($223.6175)
5+
$190.570
($219.1555)
10+
$186.680
($214.682)
Min: 1 / Mult: 1
CM-PBE
SPST-NO
-
DIN Rail
Screw
-
-
440VAC
-
3 Phase
-
220VAC
440VAC
1895999

RoHS

Each
1+
$205.520
($236.348)
5+
$201.420
($231.633)
10+
$197.310
($226.9065)
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
300VAC
460VAC
-
3 Phase
-
185VAC
460VAC
3223352

RoHS

Each
1+
$474.340
($545.491)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
400VAC
-
3 Phase
-
360VAC
440VAC
2813562
Each
1+
$263.280
($302.772)
Min: 1 / Mult: 1
460
SPDT
10A
DIN Rail
Screw
-
240VAC
480VAC
-
3 Phase
6W
190VAC
480VAC
3214136

RoHS

Each
1+
$682.840
($785.266)
Min: 1 / Mult: 1
EMR6
DPDT
4A
DIN Rail
Screw
-
250VAC
280VAC
-
3 Phase
3VA
180VAC
280VAC
1390498

RoHS

Each
1+
$344.310
($395.9565)
Min: 1 / Mult: 1
3UG
DPDT
3A
DIN Rail
Screw
-
400VAC
690VAC
-
3 Phase
2W
160VAC
690VAC
4163403

RoHS

Each
1+
$88.000
($101.200)
5+
$84.490
($97.1635)
10+
$82.840
($95.266)
20+
$81.230
($93.4145)
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
4163398

RoHS

Each
1+
$128.690
($147.9935)
5+
$123.540
($142.071)
10+
$121.110
($139.2765)
20+
$118.800
($136.620)
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
16VA
208VAC
480VAC
4163402

RoHS

Each
1+
$83.190
($95.6685)
5+
$79.870
($91.8505)
10+
$78.300
($90.045)
20+
$76.800
($88.320)
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
15VA
-
415VAC
4163407

RoHS

Each
1+
$119.350
($137.2525)
5+
$114.570
($131.7555)
10+
$112.300
($129.145)
20+
$110.140
($126.661)
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
Screw
-
250VAC
415VAC
-
3 Phase
10VA
-
415VAC
4163395

RoHS

Each
1+
$134.550
($154.7325)
5+
$129.170
($148.5455)
10+
$126.650
($145.6475)
20+
$124.200
($142.830)
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
-
240VAC
500VAC
-
3 Phase
5VA
145VAC
500V
2056305

RoHS

Each
1+
$545.570
($627.4055)
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
194VAC
528V
2056304

RoHS

Each
1+
$338.730
($389.5395)
5+
$331.960
($381.754)
10+
$325.190
($373.9685)
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
22VA
183V
484V
1344233

RoHS

Each
1+
$158.040
($181.746)
5+
$144.410
($166.0715)
10+
$130.770
($150.3855)
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
1W
208VAC
480VAC
2455513

RoHS

Each
1+
$264.880
($304.612)
5+
$259.590
($298.5285)
10+
$254.290
($292.4335)
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
22VA
-
-
2780442

RoHS

Each
1+
$264.590
($304.2785)
Min: 1 / Mult: 1
Zelio RM22UB
DPDT
8A
DIN Rail
Screw
-
250VAC
240V
-
1 Phase
2W
80V
300V
2835320

RoHS

Each
1+
$423.770
($487.3355)
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
380VAC
480VAC
3111268

RoHS

Each
1+
$178.070
($204.7805)
5+
$174.520
($200.698)
10+
$170.950
($196.5925)
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
15VA
183V
528V
1895998

RoHS

Each
1+
$288.030
($331.2345)
5+
$282.270
($324.6105)
10+
$276.510
($317.9865)
Min: 1 / Mult: 1
CM-PFE
SPDT
4A
DIN Rail
Screw
-
250VAC
440VAC
-
3 Phase
15VA
208VAC
440VAC
1-25 of 98 items
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