Phase Monitoring Relays:

178 Products Found

Newark 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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16C3175

RoHS

Each
5+
$178.830
10+
$173.870
25+
$168.900
Min: 5 / Mult: 5
DPA01 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
6VA
177VAC
275VAC
-
28B2279

RoHS

Each
1+
$319.650
5+
$285.200
10+
$264.530
25+
$231.480
50+
$206.670
More Pricing...
Min: 1 / Mult: 1
PMP Series
-
SPDT
10A
Socket
Quick Connect
-
277VAC
120VAC
-
3 Phase
40VA
102VAC
138VAC
-
34AC8907

RoHS

Each
1+
$300.770
5+
$275.560
10+
$250.340
25+
$234.520
Min: 1 / Mult: 1
460 Series
-
SPST-NO, SPST-NC
8A
DIN Rail, Panel
Screw
-
240VAC
480VAC
-
3 Phase
6VA
190VAC
480VAC
UL
34AC3146

RoHS

Each
1+
$355.660
5+
$326.080
10+
$296.490
25+
$278.050
Min: 1 / Mult: 1
HLMU Series
-
DPDT
10A
Panel Mount
Screw
-
240VAC
480VAC
-
3 Phase
-
200VAC
480VAC
UL
34AC8664

RoHS

Date/Lot Code

Each
1+
$242.680
5+
$222.150
10+
$201.640
25+
$188.650
50+
$180.090
Min: 1 / Mult: 1
201A Series
-
SPDT
10A
Socket
Quick Connect
-
240VAC
480VAC
-
3 Phase
5W
190VAC
480VAC
UL
66AH6828

RoHS

Each
1+
$303.400
Min: 1 / Mult: 1
Harmony RM17 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
48V
-
1 Phase
3.9VA
20V
80V
-
70AH0684

RoHS

Each
1+
$187.030
Min: 1 / Mult: 1
70 Series
-
DPDT
8A
DIN Rail, Panel
Screw
-
400VAC
480VAC
-
3 Phase
800mW
170VAC
520VAC
-
55AJ2777

RoHS

Each
1+
$278.920
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
576VAC
-
3 Phase
15VA
380VAC
480VAC
-
09P6658

RoHS

Each
Pricing is unavailable. Please contact customer services.
Harmony RM17 Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
528VAC
-
3 Phase
22VA
208VAC
480VAC
-
20J6493

RoHS

Each
1+
$360.180
Min: 1 / Mult: 1
PAP Series
-
SPDT
10A
Socket
Quick Connect
-
277VAC
208VAC
-
3 Phase
40VA
156VAC
198VAC
-
34AC8670

RoHS

Each
1+
$205.150
5+
$187.700
10+
$170.240
25+
$159.130
50+
$151.780
Min: 1 / Mult: 1
202 Series
-
SPDT
10A
Socket
Quick Connect / Screw
-
240VAC
480VAC
-
3 Phase
5W
190VAC
480VAC
IEC, UL
69AC7486

RoHS

Each
1+
$148.790
5+
$136.280
10+
$127.060
25+
$119.820
50+
$113.240
More Pricing...
Min: 1 / Mult: 1
EMD-BL Series
-
SPDT
5A
DIN Rail
Quick Connect
-
250VAC
480VAC
-
3 Phase
1.5W
187VAC
519VAC
-
66AH6831

RoHS

Each
1+
$250.990
Min: 1 / Mult: 1
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
3 Phase
10VA
200VAC
240VAC
-
32X6356
Each
Pricing is unavailable. Please contact customer services.
PLL/D Series
-
DPDT
8A
DIN Rail
Screw
-
30VDC
240VAC
-
1 Phase, 3 Phase (4 Wire)
1.7W
100V
139V
EN
34AC8681

RoHS

Each
1+
$619.890
5+
$569.880
10+
$519.880
25+
$489.280
Min: 1 / Mult: 1
PumpSaver Series
-
SPST
-
Panel Mount
Screw
-
240VAC
230VAC
-
1 Phase
5W
-
230VAC
UL
22AJ2357

RoHS

Date/Lot Code

Each
Pricing is unavailable. Please contact customer services.
Harmony RM22 Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
288VAC
-
3 Phase
10VA
200VAC
240VAC
-
40T1796

RoHS

Date/Lot Code

Each
1+
$339.590
5+
$303.250
10+
$281.530
25+
$245.010
50+
$220.240
More Pricing...
Min: 1 / Mult: 1
PMPU-FA8 Series
-
SPDT
10A
-
Quick Connect
-
277VAC
-
-
3 Phase
40VA
156VAC
550VAC
CE, UL
80K7042
Each
1+
$3,435.250
Min: 5 / Mult: 5
D101 Series
-
SPST-NO
5A
Panel Mount
Screw
-
120VAC
120VAC
-
3 Phase
2VA
-
-
CSA, UL
30C3079

RoHS

Date/Lot Code

Each
1+
$159.450
5+
$155.460
10+
$151.490
25+
$143.510
50+
$135.530
More Pricing...
Min: 1 / Mult: 1
PAP Series
-
SPDT
10A
Socket
Quick Connect
-
277VAC
240VAC
-
3 Phase
40VA
180VAC
230VAC
-
09P6662

RoHS

Each
Pricing is unavailable. Please contact customer services.
Harmony RM35BA Series
-
SPDT
5A
DIN Rail
Screw
-
250VAC
528VAC
-
3 Phase
5W
208VAC
480VAC
-
72Y1056

RoHS

Each
1+
$282.440
5+
$264.730
10+
$248.950
25+
$232.120
50+
$220.880
More Pricing...
Min: 1 / Mult: 1
K8AK Series
-
SPDT
5A
DIN Rail
Screw
-
-
240VAC
-
3 Phase
-
-
-
-
34AH3016

RoHS

Each
1+
$603.740
5+
$589.950
10+
$576.150
25+
$548.550
Min: 1 / Mult: 1
CM Series
-
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
66AH6832

RoHS

Each
1+
$332.880
Min: 1 / Mult: 1
Harmony RM22UA Series
-
DPDT
8A
DIN Rail
Screw
-
250VAC
240VAC
-
1 Phase
1.5W
50mV
5V
-
16C5108

RoHS

Each
1+
$566.400
5+
$549.640
10+
$526.190
25+
$509.430
Min: 3 / Mult: 1
PPC01 Series
-
SPDT
8A
Socket
Quick Connect
-
250VAC
415VAC
-
3 Phase
13VA
323VAC
475VAC
-
86K0440

RoHS

Each
1+
$206.130
Min: 1 / Mult: 1
MWS2 Series
-
DPDT
5A
DIN Rail
Screw
-
250VAC
480VAC
-
3 Phase
1.8VA
183VAC
484VAC
-
101-125 of 178 items
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