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Connecting Capacity

Flexible 2x 0.5 ... 1.5 mm²

Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm²

Flexible with Ferrule 2x 0.5 ... 1.5 mm²

Rigid 2x 0.5 ... 2.5 mm²

Rigid 1x 0.5 ... 4 mm²

Flexible 1x 0.5 ... 2.5 mm²

Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mm²

Flexible with Ferrule 1x 0.5 ... 2.5 mm²

Rigid 2x 0.5 ... 1.5 mm²

Connecting Capacity UL/CSA

Flexible 2x 18-16 AWG

Rigid 2x 20-14 AWG

Rigid 1x 20-12 AWG

Flexible 1x 18-14 AWG

Rigid 2x 20-16 AWG

Degree of Protection

Terminals IP20

Housing IP50

Function

Over- or undercurrent monitoring

Over- or undervoltage monitoring

Over- and undercurrent monitoring

Over- and undervoltage monitoring

Maximum Operating Voltage UL/CSA

Output Circuit 300 V AC

Measuring Range

0.1 ... 1 A

10 ... 100 mA

3 ... 30 mA

60 ... 600 V

30 ... 300 V

6 ... 60 V

3 ... 30 V

3 ... 15 A

1 ... 5 A

0.3 ... 1.5 A

Minimum switching capacity

10 mA

24 V

Mounting Position

1 ... 6

Output

1 c/o (SPDT) contact

2 c/o (SPDT) contacts

2 x 1 c/o or 1 x 2 c/o contacts; operating principle selectable

2 c/o (SPDT) contacts; operating principle selectable

Relay, SPDT, 5 A at 250 VAC/30 VDC

2 c/o (SPDT) contact; operating principle selectable

Overvoltage category

Pollution degree

Product Net Depth / Length

103.7 mm

Product Net Height

85.6 mm

Product Net Weight

0.153 kg

0.181 kg

0.168 kg

0.155 kg

0.137 kg

0.142 kg

0.164 kg

0.161 kg

0.17 kg

0.179 kg

0.15 kg

0.146 kg

0.139 kg

0.141 kg

0.157 kg

0.158 kg

0.154 kg

0.143 kg

0.135 kg

Product Net Width

22.5 mm

Terminal Type

Screw Terminals

Screwless Terminals

Push-In Plus Terminals

Wire Stripping Length

8 mm

Omron

K8AK-VW3 100-240VAC

Monitoring relay 22.5mm wide, Single phase over or under voltage 20 to 600V AC or DC, Two SPDT, 100-240 VAC

The CM-EFS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V. The CM-EFS.2S offers window (over- and undervoltage) monitoring as well as selection of ON- or OFF-delay, open- or closed-circuit operating principle, with or without latching function. The output contacts can be configured as 1x2 c/o (SPDT) (common signal) or 2x1 c/o (SPDT) (separate signal for minimum and maximum thresholds) operation. The hysteresis is fixed at 5 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-EFS.2S

CM-EFS.2S Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC

The CM-ESS.MS is a multifunctional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V. The CM-ESS.MS offers selection of over- or undervoltage monitoring, open- or closed-circuit operating principle, with or without latching function. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.MS

CM-ESS.MS Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC

The CM-SRS.M1S is a multifunctional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges: 3-30 mA, 10-100 mA and 0.1-1 A. The CM-SRS.M1S offers selection of over- or undercurrent monitoring, open- or closed-circuit operating principle, with or without latching function. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-SRS.M1S

CM-SRS.M1S Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC

The CM-ESS.MP is a multifunctional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V. The CM-ESS.MP offers selection of over- or undervoltage monitoring, open- or closed-circuit operating principle, with or without latching function. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

CM-ESS.MP

CM-ESS.MP Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC

<section><h2>Single-phase current relay, window type</h2><div class='introduction'>These single-phase current relays monitor over- and undercurrents. Manual resetting and automatic resetting are supported by one relay. The start-up lock and operating time can be set separately. The relay warning status is easily monitored with the LED indicator.<ul><li>Single-phase current window relay</li><li>In 22.5 mm wide industrial housing</li><li>Under and over control</li><li>Supply voltages:  24 VAC/DC, 100 to 240 VAC</li></ul></div></section>

K8AKAW2100240VAC

Monitoring relay 22.5mm wide, Single phase over or under current 0.1 to 8A AC or DC, Two SPDT, 100-240 VAC

The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.2S is configurable for over- or undervoltage monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.2S

CM-ESS.2S Voltage monitoring relay 2c/o, B-C=3-600VRMS, 220-240VAC

The CM-ESS.1S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges:  3-30 V, 3-60 A, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.1S is configurable for over- or undervoltage monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.1S

CM-ESS.1S Voltage monitoring relay 1c/o, B-C=3-600VRMS, 220-240VAC

The CM-SRS.11S is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges:  3-30 mA, 10-100 mA and 0.1-1 A and works according to the open-circuit principle. The CM-SRS.11S is configurable for over- or undercurrent monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-SRS.11S

CM-SRS.11S Current monitoring relay 1c/o, B-C=3mA-1A RMS, 220-240VAC

The CM-SRS.12S is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges:  0.3-1.5 A, 1-5 A and 3-15 A and works according to the open-circuit principle. The CM-SRS.12S is configurable for over- or undercurrent monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-SRS.12S

CM-SRS.12S Current monitoring relay 1c/o, B-C=0.3-15A RMS, 220-240VAC

The CM-SRS.22S is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges: 0.3-1.5 A, 1-5 A and 3-15 A and works according to the open-circuit principle. The CM-SRS.22S is configurable for over- or undercurrent monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-SRS.22S

CM-SRS.22S Current monitoring relay 2c/o, B-C=0.3-15A RMS, 220-240VAC

The CM-ESS.2P is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 110 - 130 V AC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.2P is configurable for over- or undervoltage monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

CM-ESS.2P

CM-ESS.2P Voltage monitoring relay 2c/o, B-C=3-600VRMS, 110-130VAC

The CM-ESS.1P is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges:  3-30 V, 3-60 A, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.1P is configurable for over- or undervoltage monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

CM-ESS.1P

CM-ESS.1P Voltage monitoring relay 1c/o, B-C=3-600VRMS, 220-240VAC

The CM-ESS.2P is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.2P is configurable for over- or undervoltage monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

CM-ESS.2P Voltage monitoring relay 2c/o, B-C=3-600VRMS, 220-240VAC

The CM-SRS.11P is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 110 - 130 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges:  3-30 mA, 10-100 mA and 0.1-1 A and works according to the open-circuit principle. The CM-SRS.11P is configurable for over- or undercurrent monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

CM-SRS.11P

CM-SRS.11P Current monitoring relay 1c/o, B-C=3mA-1A RMS, 110-130VAC

The CM-SRS.11P is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges:  3-30 mA, 10-100 mA and 0.1-1 A and works according to the open-circuit principle. The CM-SRS.11P is configurable for over- or undercurrent monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

CM-SRS.11P Current monitoring relay 1c/o, B-C=3mA-1A RMS, 220-240VAC

The CM-ESS.1S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges:  3-30 V, 3-60 A, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.1S is configurable for over- or undervoltage monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.1S Voltage monitoring relay 1c/o, B-C=3-600VRMS, 24-240VAC/DC

The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.2S is configurable for over- or undervoltage monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.2S Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC

The CM-ESS.1S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 110 - 130 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges:  3-30 V, 3-60 A, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.1S is configurable for over- or undervoltage monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.1S Voltage monitoring relay 1c/o, B-C=3-600VRMS, 110-130VAC

The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 110 - 130 V AC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.2S is configurable for over- or undervoltage monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

CM-ESS.2S Voltage monitoring relay 2c/o, B-C=3-600VRMS, 110-130VAC

<p>Detect errors in motors and other equipment through current changes. Use in either overcurrent or undercurrent mode.</p><ul><li>Monitor AC or DC currents with one relay</li><li>Use with commercially available CTs (CT secondary side: 0 to 1 A or 0 to 5 A)</li><li>Settings for the operating value, hysteresis, startup lock time, and operating time</li><li>Width of 17.5 mm to reduce space required in panels</li><li>Push-in plus Technology that reduce wiring work</li><li>Double-insertion holes for crossover wiring (all terminals)</li><li>Models added with transistor outputs for superior contact reliability</li><li>RoHS compliant</li></ul>

K8DT-AS Single-Phase Current Relay

Detect errors in motors and other equipment through current changes. Monitor for overcurrents and undercurrents simultaneously with one relay.<ul>
<li>Monitor AC or DC currents with one relay</li>
<li>Use with commercially available CTs (CT secondary side: 0 to 1 A or 0 to 5 A)</li>
<li>Width of 17.5 mm to reduce space required in panels</li>
<li>Push-in plus Technology that reduce wiring work</li>
<li>Double-insertion holes for crossover wiring (all terminals)</li>
<li>Models added with transistor outputs for superior contact reliability</li>
<li>RoHS compliant</li>
</ul>


K8DT-AW Monitoring Relay Push-in Plus Terminals

<p>Detect abnormal voltages applied to equipment to protect against equipment failure. Use in either overvoltage or undervoltage mode.</p><ul><li>Monitor AC or DC voltages with one relay</li><li>Settings for the operating value, hysteresis, and operating time</li><li>Width of 17.5 mm to reduce space required in panels</li><li>Push-in plus Technology that reduce wiring work</li><li>Double-insertion holes for crossover wiring (all terminals)</li><li>Models added with transistor outputs for superior contact reliability</li><li>RoHS compliant</li></ul>

K8DT-VS Single-Phase Voltage Relay

Detect abnormal voltages applied to equipment to protect against equipment failure. Monitor for overvoltages and undervoltages simultaneously with one relay.<ul>
<li>Monitor AC or DC voltages with one relay</li>
<li>Settings for the operating value, hysteresis, and operating time</li>
<li>Width of 17.5 mm to reduce space required in panels</li>
<li>Push-in plus Technology that reduce wiring work</li>
<li>Double-insertion holes for crossover wiring (all terminals)</li>
<li>Models added with transistor outputs for superior contact reliability</li>
<li>RoHS compliant</li>
</ul>


 K8DT-VW Voltage Monitoring Relay Terminals

These single-phase current relays monitor over- and undercurrents. Manual resetting and automatic resetting are supported by one relay. The start-up lock and operating time can be set separately. The relay warning status is easily monitored with the LED indicator.<ul>
<li>Single-phase current relay</li>
<li>In 22.5 mm wide industrial housing</li>
<li>Under or over control</li>
<li>Supply voltages: 24 VAC/DC, 100 to 240 VAC</li>
</ul>


K8AK-AS Single-Phase Current Relay

These single-phase voltage relays are for monitoring over- and undervoltages. Manual resetting and automatic resetting are supported by one relay. Relay warning status can easily be monitored using the LED indicator.<ul>
<li>Single-phase voltage relay</li>
<li>In 22.5 mm wide industrial housing</li>
<li>Under or over control</li>
<li>Supply voltages: 24 VAC/DC, 100 to 240 VAC</li>
</ul>


K8AK-VS Single-Phase Voltage Relay

For monitoring over- and undervoltages simultaneously. Manual resetting and automatic resetting are supported by one relay. Separate settings and outputs are supported for over- and undervoltages. Relay warning status can easily be monitored with the LED indicator.<ul>
<li>Single-phase voltage window relay</li>
<li>In 22.5 mm wide industrial housing</li>
<li>Under and over, low/low or high/high control</li>
<li>Supply voltages: 24 VAC/DC, 100 to 240 VAC</li>
</ul>


1-Phase Monitoring Relays