Cloudy
14 °C
Germantown, Maryland
Cloudy

Fri Oct 19 2018
none

K8AK / K8DS Series Measuring & Monitoring Relays/Features

By OMRON Electronics

K8AK-AS Single-phase Current Relay

Monitor for overcurrents or undercurrents.

Use commercially available CTs (CT current on secondary side: 0 to 1 A or 0 to 5 A).

Manual resetting and automatically resetting supported by one Relay.

Startup lock and operating time can be set separately.

One SPDT output relay, 5 A at 250 VAC (resistive load).

Output relay can be switched between normally open and normally closed.

Output status can be monitored using LED indicator.

Inputs are isolated from the power supply.

K8AK-AW Single-phase Overcurrent/Undercurrent Relays

Monitor for overcurrents and undercurrents simultaneously. 
Separate settings and outputs supported for overcurrents and undercurrents.

Use commercially available CTs (CT current on secondary side: 0 to 1 A or 0 to 5 A).

Manual resetting and automatically resetting supported by one Relay.

Startup lock and operating time can be set separately.

Two sets of SPDT output contacts, 5 A at 250 VAC (resistive load).

Output status can be monitored using LED indicator.

Inputs are isolated from the power supply.

K8AK-VS Single-phase Voltage Relay

Monitor for overvoltages or undervoltages.

Manual resetting and automatically resetting supported by one Relay.

One SPDT output relay, 5 A at 250 VAC (resistive load).

Output relay can be switched between normally open and normally closed.

Process control signal (0 to 10 V) and current splitter input supported.

Output status can be monitored using LED indicator.

Input frequency of 40 to 500 Hz supported.

Inputs are isolated from the power supply.

K8AK-VW Single-phase Overvoltage/Undervoltage Relays

Monitor for overvoltages and undervoltages simultaneously. 
Separate settings and outputs supported for overvoltages and undervoltages.

Manual resetting and automatically resetting supported by one Relay.

Pre-alarm Monitoring Mode.

Two SPDT output relays, 5 A at 250 VAC (resistive load).

Process control signal (0 to 10 V) and current splitter input supported.

Output status can be monitored using LED indicator.

Input frequency of 40 to 500 Hz supported.

Inputs are isolated from the power supply.

K8DS-PH Phase-sequence Phase-loss Relay

Lineup includes a 17.5-mm slim, compact model.

Greater resistance to inverter noise.

Distinguishes between positive phases, reversed phases, and phase loss when power is turned ON.

Supports phase loss detection when the motor is operating.

Output status can be monitored using LED indicator.

Ideal to prevent reverse operation of motors.

K8AK-PH Phase-sequence Phase-loss Relay

Greater resistance to inverter noise.

Distinguishes between positive phases, reversed phases, and phase loss when power is turned ON.

5 A (resistive load) at 250 VAC, DPDT x 1.

Output status can be monitored using LED indicator.

Ideal to prevent reverse operation of motors.

K8AK-PW Three-phase Voltage Relay

Greater resistance to inverter noise.

Monitor overvoltages and undervoltages for three-phase 3-wire or 4-wire power supplies. 
DIP switch setting for 3-phase 3-wire or 3-phase 4-wire power supply.

Two SPDT output relays, 5 A at 250 VAC (resistive load). 
Separate outputs possible for overvoltages and undervoltages.

World-wide power specifications supported by one Unit (switchable using DIP switch).

Relay status can be monitored using LED indicator.

K8AK-PM Three-phase Phase-sequence Phase-loss Relay

Greater resistance to inverter noise.

Monitor overvoltages, undervoltages, phase sequence, and phase loss for three-phase 3-wire or 4-wire power supplies with just one Unit. 
Switch setting for 3-phase 3-wire or 3-phase 4-wire power supply.

Two SPDT output relays, 5 A at 250 VAC (resistive load). 
Output overvoltages and undervoltages using separate relays.

World-wide power specifications supported by one Unit (switchable).

Output status can be monitored using LED indicator.

K8AK-PA Three-phase Asymmetry and Phase-sequence Phase-loss Relay

Greater resistance to inverter noise.

Monitor voltage asymmetry, phase sequence, and phase loss for three-phase 3-wire or 4-wire power supplies with just one Unit. 
Switch setting for 3-phase 3-wire or 3-phase 4-wire power supply.

One SPDT output relay, 5 A at 250 VAC (resistive load).

World-wide power specifications supported by one Unit (switchable).

Relay status can be monitored using LED indicator.

K8AK-TH Temperature Monitoring Relay

Excessive temperature increases can be prevented and abnormal temperatures can be monitored.

Temperature monitoring in slim design with a width of just 22.5 mm.

Rotary switches simplifies temperature settings.

Universal-input support for thermocouple or platinum resistance thermometer sensor input.

Change the output relay between normally open and normally closed operation.

Alarm status identification with LED indicator.

Self-holding output.

K8AK-LS Conductive Level Controller

Self-holding ON or OFF outputs can be selected using selfholding circuit.

Sensitivity adjustment of operating resistance from 10 to 100 kΩ for application to a wide range of liquids.

Prevents chattering of relay contacts that occurs with ripples.

Easy wiring with ferrules.

Use 2 × 2.5 mm2 solid wire or 2 × 1.5 mm2 ferrules.

Applicable as a floatless switch.