Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
Cart Icon
0
Cart Icon
0
 Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Electrical Supplies
  4. /
  5. Industrial Electrical Controls & Automation
  6. /
  7. Electrical Switches & Relays
  8. /
  9. Electrical Relays
  10. /
  11. Phase Monitor Relays
Search Feedback

Phase Monitor Relays (66 items)

Macromatic Phase Monitor Relay, 8 Pin Octal, 3 Phase, SPDT, 190-250V Low Voltage, 380-500V High Voltage PMPU
Macromatic

Phase Monitor Relay, 8 Pin Octal, 3 Phase, SPDT, 190-250V Low Voltage, 380-500V High Voltage

Zoro # G1452227
Mfr # PMPU
product price:  $97.99
/ea
Macromatic 3 Phase Monitor Relay, DPDT, 500VAC, 0 Pin PMDU
Macromatic

3 Phase Monitor Relay, DPDT, 500VAC, 0 Pin

Zoro # G1803527
Mfr # PMDU
product price:  $156.99
/ea
Macromatic 3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin PMPU-FA8
Macromatic

3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin

Zoro # G3623356
Mfr # PMPU-FA8
product price:  $81.19
/ea
Macromatic 3 Phase Monitor Relay, SPDT, 480VAC, 8 Pin PAP480
Macromatic

3 Phase Monitor Relay, SPDT, 480VAC, 8 Pin

Zoro # G0480286
Mfr # PAP480
product price:  $78.19
/ea
Diversified SLU-100 Series Universal Phase Monitor SLU-100-ASA
Diversified

SLU-100 Series Universal Phase Monitor

Zoro # G609227294
Mfr # SLU-100-ASA
product price:  $165.99
/ea
Dayton 3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin PMPU-B18
Dayton

3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin

Zoro # G6168373
Mfr # PMPU-B18
product price:  $139.99
/ea
Macromatic 3 Phase Monitor Relay, SPDT, 600VAC, 8 Pin PMP575
Macromatic

3 Phase Monitor Relay, SPDT, 600VAC, 8 Pin

Zoro # G1803536
Mfr # PMP575
product price:  $102.99
/ea
Macromatic 3 Phase Monitor Relay, DPDT, 600VAC, 0 Pin PMD575
Macromatic

3 Phase Monitor Relay, DPDT, 600VAC, 0 Pin

Zoro # G1803518
Mfr # PMD575
product price:  $178.99
/ea
Macromatic 3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin PCPU
Macromatic

3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin

Zoro # G1803545
Mfr # PCPU
product price:  $54.59
/ea
Macromatic 3 Phase Monitor Relay, SPDT, 240VAC, 8 Pin PAP240
Macromatic

3 Phase Monitor Relay, SPDT, 240VAC, 8 Pin

Zoro # G2347782
Mfr # PAP240
product price:  $67.15
/ea
Dayton 3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin PMPU-FA8B18
Dayton

3 Phase Monitor Relay, SPDT, 500VAC, 8 Pin

Zoro # G6190423
Mfr # PMPU-FA8B18
product price:  $129.99
/ea
Schneider Electric 3 Phase Monitor Relay, SPDT, 480VAC, 6 Pin RM17TE00
Schneider Electric

3 Phase Monitor Relay, SPDT, 480VAC, 6 Pin

Zoro # G4099733
Mfr # RM17TE00
product price:  $223.99
/ea
Schneider Electric 3 Phase Monitor Relay, DPDT, 480VAC, 12 Pin RM35TF30
Schneider Electric

3 Phase Monitor Relay, DPDT, 480VAC, 12 Pin

Zoro # G4196902
Mfr # RM35TF30
product price:  $282.99
/ea
Macromatic 3 Phase Monitor Relay, SPDT, 208VAC, 8 Pin PAP208
Macromatic

3 Phase Monitor Relay, SPDT, 208VAC, 8 Pin

Zoro # G2417965
Mfr # PAP208
product price:  $74.49
/ea
Schneider Electric 3 Phase Monitor Relay, SPDT, 480VAC, 6 Pin RM17TA00
Schneider Electric

3 Phase Monitor Relay, SPDT, 480VAC, 6 Pin

Zoro # G4149144
Mfr # RM17TA00
product price:  $222.99
/ea
Diversified SLU-0200 Series Universal Phase Monitor with Rapid Cycle Lockout SLU0200
Diversified

SLU-0200 Series Universal Phase Monitor with Rapid Cycle Lockout

Zoro # G709227286
Mfr # SLU0200
product price:  $160.99
/ea
Schneider Electric Single Phase Relay, 250VAC/DC Coil Volts, 1 C/O RM17UAS15
Schneider Electric

Single Phase Relay, 250VAC/DC Coil Volts, 1 C/O

Zoro # G0572041
Mfr # RM17UAS15
product price:  $151.99
/ea
Atc Diversified Electronics Phase Monitor Relay, 4.33 in H SLU100ASA
Atc Diversified Electronics

Phase Monitor Relay, 4.33 in H

Zoro # G003528577
Mfr # SLU100ASA
product price:  $193.99
/ea
Diversified SLD Series Phase and Under-Voltage Monitor SLD-440-ALE
Diversified

SLD Series Phase and Under-Voltage Monitor

Zoro # G809227292
Mfr # SLD-440-ALE
product price:  $481.99
/ea
Diversified SLM Series Microprocessor-based Three-Phase Monitor SLM-230-ASE
Diversified

SLM Series Microprocessor-based Three-Phase Monitor

Zoro # G909227291
Mfr # SLM-230-ASE
product price:  $567.99
/ea
Diversified SLD Series Phase and Under-Voltage Monitor SLD-440-ASA
Diversified

SLD Series Phase and Under-Voltage Monitor

Zoro # G209227281
Mfr # SLD-440-ASA
product price:  $619.99
/ea
Atc Diversified Electronics Phase Monitor Relay, 3.1 in H SUA440ASA
Atc Diversified Electronics

Phase Monitor Relay, 3.1 in H

Zoro # G203528629
Mfr # SUA440ASA
product price:  $228.99
/ea
Lovato Monitoring Relay PMV10A440
Lovato

Monitoring Relay

Zoro # G022868197
Mfr # PMV10A440
product price:  $359.99
/ea
Atc Diversified Electronics Phase Monitor Relay, 3.63 in H SLA440ALE
Atc Diversified Electronics

Phase Monitor Relay, 3.63 in H

Zoro # G703456798
Mfr # SLA440ALE
product price:  $378.99
/ea
Schneider Electric Phase Monitor Relay, 9 Pins, 160-288V AC RM22TU21
Schneider Electric

Phase Monitor Relay, 9 Pins, 160-288V AC

Zoro # G3458193
Mfr # RM22TU21
product price:  $192.99
/ea
Atc Diversified Electronics Phase Monitor Relay, 3.1 in H SLA230ASA
Atc Diversified Electronics

Phase Monitor Relay, 3.1 in H

Zoro # G903456765
Mfr # SLA230ASA
product price:  $139.99
/ea
Diversified SLJ Series Phase Sequence Under Voltage Monitor SLJ-440-ALE
Diversified

SLJ Series Phase Sequence Under Voltage Monitor

Zoro # G109227299
Mfr # SLJ-440-ALE
product price:  $354.99
/ea
Atc Diversified Electronics Phase Monitor Relay, 3.1 in H SLA230ALA
Atc Diversified Electronics

Phase Monitor Relay, 3.1 in H

Zoro # G003456788
Mfr # SLA230ALA
product price:  $186.99
/ea
No Product Image Available
Atc Diversified Electronics

Phase Monitoring Relays

Zoro # G116497937
Mfr # SLA230ALE
product price:  $316.99
/ea
Diversified SLD Series Phase and Under-Voltage Monitor SLD-230-ASA
Diversified

SLD Series Phase and Under-Voltage Monitor

Zoro # G509227288
Mfr # SLD-230-ASA
product price:  $629.99
/ea
Diversified SLM Series Microprocessor-based Three-Phase Monitor SLM-440-ASE
Diversified

SLM Series Microprocessor-based Three-Phase Monitor

Zoro # G009227290
Mfr # SLM-440-ASE
product price:  $641.99
/ea
Diversified SLJ Series Phase Sequence Under Voltage Monitor SLJ-230-ALE
Diversified

SLJ Series Phase Sequence Under Voltage Monitor

Zoro # G009227283
Mfr # SLJ-230-ALE
product price:  $439.99
/ea
No Product Image Available
Atc Diversified Electronics

Phase Monitoring Relays

Zoro # G016497952
Mfr # SLM440ASE
product price:  $685.99
/ea
Diversified SLC Series Phase Unbalance and Loss Monitor SLC-440-ALE
Diversified

SLC Series Phase Unbalance and Loss Monitor

Zoro # G609227287
Mfr # SLC-440-ALE
product price:  $555.99
/ea
Siemens digitally adjustable monitoring relay phase failure phase sequence 3UG5816-1AA40
Siemens

digitally adjustable monitoring relay phase failure phase sequence

Zoro # G615994432
Mfr # 3UG5816-1AA40
product price:  $510.99
/ea
Sold in mult. of 2 for $1,021.98
Siemens digitally adjustable monitoring relay phase failure phase sequence 3UG5616-2CR20
Siemens

digitally adjustable monitoring relay phase failure phase sequence

Zoro # G515994440
Mfr # 3UG5616-2CR20
product price:  $462.99
/ea
Sold in mult. of 2 for $925.98
Phase Monitor Relays (66 items)
  • 1
    of 2 pages
  • Next
  • Last

Related Categories

Relay SocketsPower & General Purpose RelaysTime Delay RelaysSolid State RelaysPush Buttons & Indicators
Safety SwitchesLimit Switches & AccessoriesToggle SwitchesPressure SwitchesSwitch Accessories
relay dpdtrelay phase monitordayton 3x748monitoring relay phase3 phase overload relay
phase failure relaythree phase line reactoroverload relay 3 phaserelay spdtphase loss monitor

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us
© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc