Current Monitoring Relays

RSP Supply carries a full line of current monitoring relays designed to detect and protect against overcurrent and undercurrent conditions in industrial and commercial electrical systems. Available in single and double pole configurations, these relays safeguard equipment by signaling alarms or disconnecting power when abnormal current levels are detected, helping prevent costly downtime and equipment failure. Current monitoring relays play a critical role in maintaining operational safety and efficiency. When current flow deviates from normal levels, these devices automatically trigger control signals, allowing operators to take corrective action or automatically shut down affected systems. They are used in a wide variety of applications, including motor protection, process monitoring, and power distribution systems.

Schneider Electric Harmony control relays provide comprehensive monitoring and detection of system parameters such as current, phase, voltage, frequency, and temperature. With advanced digital configuration using the Zelio NFC App, users can precisely set monitoring thresholds and timing delays in minutes, seconds, or milliseconds for optimal control. Phoenix Contact EMD-BL compact monitoring relays are designed for simplicity and reliability in machine and building automation. They monitor electrical and physical parameters including current, voltage, phase sequence, load, and temperature, making them suitable for series production, system integration, and facility installations.

Found 74 items
Normally In Stock
Littelfuse ECSL40AC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
ABB 1SVR730840R0500 CM-SRS.22S CURRENT MON. RELAY
Free U.S Ground shipping
$464.99
$387.49
Normally In Stock
Littelfuse ECSW3LABT Current Monitoring - 24 Volt (DC), Double Throw, Single Pole
Free U.S Ground shipping
$298.81
$249.01
Normally In Stock
Littelfuse ECSW4LADT Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$298.81
$249.01
Normally In Stock
Littelfuse ECSW6MBHT Current Monitoring - 230 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$298.81
$249.01
Normally In Stock
ABB 1SVR730841R1500 CM-SRS.22S CURRENT MON. RELAY
Free U.S Ground shipping
$396.89
$330.74
Normally In Stock
ABB 1SVR730841R0200 CM-SRS.11S CURRENT MON. RELAY
Free U.S Ground shipping
$358.42
$298.68
Normally In Stock
Littelfuse ECS60BC Current Monitoring - 230 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECSH41AD Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH41BC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH41F.08D Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH4HAD Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH4HF.08D Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH61AD Current Monitoring - 230 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSL31A Current Monitoring - 24 Volt (DC), Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECS61BC Current Monitoring - 230 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS6HAH Current Monitoring - 230 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECSH30AC Current Monitoring - 24 Volt (DC), Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH40AC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH40AD Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
Littelfuse ECSH41AC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$212.46
$177.05
Normally In Stock
ABB 1SVR730841R0300 CM-SRS.12S CURRENT MON. RELAY
Free U.S Ground shipping
$358.42
$298.68
Normally In Stock
ABB 1SVR730841R0400 CM-SRS.21S CURRENT MON. RELAY
Free U.S Ground shipping
$396.89
$330.74
Normally In Stock
ABB 1SVR730841R0500 CM-SRS.22S CURRENT MON. RELAY
Free U.S Ground shipping
$396.89
$330.74
Normally In Stock
ABB 1SVR730841R1200 CM-SRS.11S CURRENT MON. RELAY
Free U.S Ground shipping
$358.42
$298.68
Normally In Stock
ABB 1SVR730841R1300 CM-SRS.12S CURRENT MON. RELAY
Free U.S Ground shipping
$296.99
$247.49
Normally In Stock
ABB 1SVR730841R1400 CM-SRS.21S CURRENT MON. RELAY
Free U.S Ground shipping
$328.86
$274.05
Normally In Stock
Phoenix Contact 2867937 Monitoring relay EMD-SL-C-UC-10
Free U.S Ground shipping
$265.82
$221.52
Normally In Stock
Phoenix Contact 2903521 Monitoring relay EMD-BL-C-10
Free U.S Ground shipping
$177.72
$148.10
Normally In Stock
Phoenix Contact 2903522 Monitoring relay EMD-BL-C-10-PT
Free U.S Ground shipping
$177.72
$148.10
Normally In Stock
Phoenix Contact 2866019 Monitoring relay EMD-SL-C-OC-10
Free U.S Ground shipping
$256.12
$213.43
Normally In Stock
ABB 1SVR730840R0200 CM-SRS.11S CURRENT MON. RELAY
Free U.S Ground shipping
$426.49
$355.41
Normally In Stock
ABB 1SVR730840R0300 CM-SRS.12S CURRENT MON. RELAY
Free U.S Ground shipping
$426.49
$355.41
Normally In Stock
ABB 1SVR730840R0400 CM-SRS.21S CURRENT MON. RELAY
Free U.S Ground shipping
$464.99
$387.49
Normally In Stock
Littelfuse ECS20BC Current Monitoring - 24 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS21BC Current Monitoring - 24 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS2HBC Current Monitoring - 24 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS30AC Current Monitoring - 24 Volt (DC), Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS31AC Current Monitoring - 24 Volt (DC), Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS40A Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS40AC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS40BC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS41A Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS41AC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS41BC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS41BD Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS41BH Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21
Normally In Stock
Littelfuse ECS4HBC Current Monitoring - 120 Volt, Double Throw, Single Pole
Free U.S Ground shipping
$206.65
$172.21

FAQs

Q: What is the purpose of a current monitoring relay?
A current monitoring relay detects overcurrent or undercurrent conditions in electrical circuits and helps prevent damage by signaling alarms or disconnecting the load.

Q: What types of current monitoring relays are available?
They are available in single pole and double pole configurations, depending on the control requirements and system design.

Q: Can current monitoring relays monitor multiple parameters?
Yes, advanced models like Schneider Electric Harmony and Phoenix Contact EMD relays can monitor multiple parameters including voltage, phase, and temperature.

Q: How are relay settings adjusted?
Many modern current monitoring relays can be configured digitally, such as through Schneider Electric’s Zelio NFC App, allowing precise adjustment of thresholds and time delays.

Q: Where are current monitoring relays typically used?
They are commonly used in industrial automation, motor protection, HVAC systems, building management, and other electrical control applications requiring current supervision.

Why Buy Current Monitoring Relays from RSP Supply

RSP Supply offers a wide range of current monitoring relays from leading brands like Schneider Electric and Phoenix Contact. With same-day shipping on most products, competitive pricing, and expert support, we help you find reliable monitoring solutions that keep your systems protected and running efficiently.