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 Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Support
0
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. Safety Monitoring Relays

Safety Monitoring Relays (311 items) - Page 7

Siemens insulation monitoring relay for ungrounded IT networks up to 250 V AC 3UG4582-1AW31
Siemens

insulation monitoring relay for ungrounded IT networks up to 250 V AC

Zoro # G016314792
Mfr # 3UG4582-1AW31
product price:  $692.99
/ea
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2242-2FA30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G616040145
Mfr # 3RR2242-2FA30
product price:  $384.99
/ea
Sold in mult. of 2 for $769.98
Pilz Safety Relay 751105
Pilz

Safety Relay

Zoro # G923561920
Mfr # 751105
product price:  $611.99
/ea
Siemens monitoring relay phase failure phase sequence and asymmetry monitoring 3x 3UG5512-2AR21
Siemens

monitoring relay phase failure phase sequence and asymmetry monitoring 3x

Zoro # G716040151
Mfr # 3UG5512-2AR21
product price:  $192.99
/ea
Sold in mult. of 3 for $578.97
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2243-1FW30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G516040139
Mfr # 3RR2243-1FW30
product price:  $525.99
/ea
Siemens SIRIUS safety relay Output expansion 3RO Power with Relay enabling 3SK1213-1AJ20
Siemens

SIRIUS safety relay Output expansion 3RO Power with Relay enabling

Zoro # G616039910
Mfr # 3SK1213-1AJ20
product price:  $556.99
/ea
Te Connectivity SR4M4085 5-1415054-1
Te Connectivity

SR4M4085

Zoro # G901034279
Mfr # 5-1415054-1
product price:  $21.99
/ea
Sold in mult. of 7 for $153.93
Schmersal Srb-E-204St Replaces Srb206-St-24V 103009973
Schmersal

Srb-E-204St Replaces Srb206-St-24V

Zoro # G421953579
Mfr # 103009973
product price:  $585.99
/ea
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2141-2AW30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G216040170
Mfr # 3RR2141-2AW30
product price:  $201.99
/ea
Sold in mult. of 3 for $605.97
Siemens SIRIUS safety relay Connecting cable length 1 meter for connecting the safe 3TK2810-0A
Siemens

SIRIUS safety relay Connecting cable length 1 meter for connecting the safe

Zoro # G916288094
Mfr # 3TK2810-0A
product price:  $67.59
/ea
Sold in mult. of 8 for $540.72
Siemens Analog monitoring relay Fill level monitoring Resistance monitoring from 2 3UG4501-2AW30
Siemens

Analog monitoring relay Fill level monitoring Resistance monitoring from 2

Zoro # G216040156
Mfr # 3UG4501-2AW30
product price:  $194.99
/ea
Sold in mult. of 3 for $584.97
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2243-1FA30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G616040152
Mfr # 3RR2243-1FA30
product price:  $483.99
/ea
Diversified VBA Series Single Phase Monitoring Relay VBA-120-AFN
Diversified

VBA Series Single Phase Monitoring Relay

Zoro # G409227241
Mfr # VBA-120-AFN
product price:  $574.99
/ea
Siemens SIRIUS safety relay Basic unit Advanced series with time delay 5-300 s 3SK1122-1CB44
Siemens

SIRIUS safety relay Basic unit Advanced series with time delay 5-300 s

Zoro # G416039905
Mfr # 3SK1122-1CB44
product price:  $307.99
/ea
Sold in mult. of 2 for $615.98
Murrelektronik MIRO SAFE+ E 24, 24 VAC/DC - 4 N/O contact / 2 N/C contact, 22, 5 mm spring clamps 3000-33113-3020075
Murrelektronik

MIRO SAFE+ E 24, 24 VAC/DC - 4 N/O contact / 2 N/C contact, 22, 5 mm spring clamps

Zoro # G200617876
Mfr # 3000-33113-3020075
product price:  $742.99
/ea
Siemens SIRIUS safety relay Basic unit Advanced series 3 electronic enabling 3SK1122-2AB40
Siemens

SIRIUS safety relay Basic unit Advanced series 3 electronic enabling

Zoro # G116039922
Mfr # 3SK1122-2AB40
product price:  $307.99
/ea
Sold in mult. of 2 for $615.98
Schneider Electric Expansion module, Modicon MCM, 8 inputs, screw XPSMCMDI0800
Schneider Electric

Expansion module, Modicon MCM, 8 inputs, screw

Zoro # G500422828
Mfr # XPSMCMDI0800
product price:  $355.99
/ea
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2141-1AA30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G816040167
Mfr # 3RR2141-1AA30
product price:  $164.99
/ea
Sold in mult. of 3 for $494.97
Siemens SIRIUS safety relay basic unit 3SK2 series 20 F-DI 4 F-DQ 3SK2122-1AA10
Siemens

SIRIUS safety relay basic unit 3SK2 series 20 F-DI 4 F-DQ

Zoro # G216039907
Mfr # 3SK2122-1AA10
product price:  $995.99
/ea
Phoenix Contact PSR-SPP- 24UC/ESA2/4X1/1X2/B Safety 2963954
Phoenix Contact

PSR-SPP- 24UC/ESA2/4X1/1X2/B Safety

Zoro # G616098320
Mfr # 2963954
product price:  $291.99
/ea
Siemens SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO 3SK1211-1BB00
Siemens

SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO

Zoro # G516039942
Mfr # 3SK1211-1BB00
product price:  $295.99
/ea
Sold in mult. of 2 for $591.98
Phoenix Contact PSR-SPP- 24UC/ESL4/3X1/1X2/B Safety 2981062
Phoenix Contact

PSR-SPP- 24UC/ESL4/3X1/1X2/B Safety

Zoro # G916098303
Mfr # 2981062
product price:  $352.99
/ea
Murrelektronik MIRO SAFE+ SWITCH BCS L 24, 24 VAC/DC - 3 N/O contact / 1 N/C contact, 22, 5 mm screw clamps 3000-33113-3020020
Murrelektronik

MIRO SAFE+ SWITCH BCS L 24, 24 VAC/DC - 3 N/O contact / 1 N/C contact, 22, 5 mm screw clamps

Zoro # G300617936
Mfr # 3000-33113-3020020
product price:  $671.99
/ea
Siemens SIRIUS safety relay Basic unit Advanced series with time delay 5-300 s 3SK1121-2CB44
Siemens

SIRIUS safety relay Basic unit Advanced series with time delay 5-300 s

Zoro # G716039896
Mfr # 3SK1121-2CB44
product price:  $510.99
/ea
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2243-3FA30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G516040177
Mfr # 3RR2243-3FA30
product price:  $496.99
/ea
No Product Image Available
Atc Diversified Electronics

Phase Monitor Relay

Zoro # G324301996
Mfr # SLA575ALE
product price:  $1,031.99
/ea
Siemens SIRIUS safety relay safety-oriented Standstill monitoring 400 V AC 45 mm 3TK2810-0JA02
Siemens

SIRIUS safety relay safety-oriented Standstill monitoring 400 V AC 45 mm

Zoro # G316039920
Mfr # 3TK2810-0JA02
product price:  $1,679.99
/ea
Siemens SIRIUS safety relay Output expansion 3RO Power with Relay enabling 3SK1213-2AB40
Siemens

SIRIUS safety relay Output expansion 3RO Power with Relay enabling

Zoro # G716039902
Mfr # 3SK1213-2AB40
product price:  $434.99
/ea
No Product Image Available
Atc Diversified Electronics

Phase Monitors

Zoro # G624301993
Mfr # SLD230ALE
product price:  $1,079.99
/ea
Diversified VBA Series Single Phase Monitoring Relay VBA-24-DLA
Diversified

VBA Series Single Phase Monitoring Relay

Zoro # G809227223
Mfr # VBA-24-DLA
product price:  $769.99
/ea
No Product Image Available
Atc Diversified Electronics

Solid State Relay

Zoro # G724301541
Mfr # SLD440ASA
product price:  $1,082.99
/ea
Diversified VBA Series Single Phase Monitoring Relay VBA-230-AFN
Diversified

VBA Series Single Phase Monitoring Relay

Zoro # G809227254
Mfr # VBA-230-AFN
product price:  $642.99
/ea
Siemens SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO 3SK1211-1BW20
Siemens

SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO

Zoro # G916039931
Mfr # 3SK1211-1BW20
product price:  $295.99
/ea
Sold in mult. of 2 for $591.98
Siemens Monitoring relay can be mounted to Contactor 3RT2 3RR2142-1AA30
Siemens

Monitoring relay can be mounted to Contactor 3RT2

Zoro # G916040142
Mfr # 3RR2142-1AA30
product price:  $204.99
/ea
Sold in mult. of 3 for $614.97
Diversified SLA Series Three-Phase Monitoring Relay SLA-120-ASA
Diversified

SLA Series Three-Phase Monitoring Relay

Zoro # G109227237
Mfr # SLA-120-ASA
product price:  $249.99
/ea
Diversified Universal AC Current Monitor CMD-120-ASE-5
Diversified

Universal AC Current Monitor

Zoro # G409227265
Mfr # CMD-120-ASE-5
product price:  $521.99
/ea
Safety Monitoring Relays (311 items) - Page 7
  • First
  • Previous
  • 7
    of 9 pages
  • Next
  • Last
How was your search?

About Safety Monitoring Relays

Safety Monitoring Relays are an important tool for ensuring the safety of people and machines in a wide range of industries. They are designed to monitor and detect potential hazardous conditions, and then shut off the power or activate a warning system in order to prevent any potential harm.

Types of Safety Monitoring Relays

Safety Monitoring Relays come in a variety of forms depending on the application they are being used for. Some common types include emergency stop relays, shock relays, overload relays, and two-hand control relays. Each type is designed to monitor different aspects of safety while providing reliable protection.

How Safety Monitoring Relays are Made

Safety Monitoring Relays are typically constructed with electrical components such as contactors, circuit breakers, fuses, resistors, and transistors. The materials used to make them must be able to withstand extreme temperatures and harsh environments in order for them to work properly.

Industries that use Safety Monitoring Relays

Safety Monitoring Relays can be found in many different industries such as manufacturing plants, automotive factories, chemical plants, food processing facilities and other industrial settings. Professionals who use these devices rely on their accuracy and reliability when it comes to protecting personnel from potential dangers.

Find the Safety Monitoring Relays You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of electrical supplies, along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Relay SocketsPhase Monitor RelaysPower & General Purpose RelaysTime Delay RelaysSafety Switches
Limit Switches & AccessoriesPush Buttons & IndicatorsToggle SwitchesKey Operated SwitchesPressure Switches
safety relay extensionspst relay 24vfurnas overload relayanalog monitoring relayforce guided relay
accordian doorsafety relayforce guided safety relaycurrent control relaydigital monitoring relay

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
  • Tax Exemption

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