Quality products, good price
0$0.00

No products in the cart.

Category

Popular

Category: Monitoring & Protective Devices

Monitoring & Protective Devices

We currently cover all customs duties and fees for customers in North America (USA, Canada, Mexico), South Korea, Japan, Australia and New Zealand, and this only applies to orders with a value of goods (excluding fees) at 50 USD or more. Customers from other countries or low value orders are advised to check customs fees and duties in your country before placing an order.
Shipments to the Middle East are temporarily suspended.

Showing 1–9 of 187 resultsSorted by latest

  • White and orange modular electrical terminal block with three terminals labeled L1, L2, L3 and adjustment dials
    Compare

    SELEC 600VPR-310/520 Voltage Protection Relay

    $25.00

    Three phases Voltage protection relay; Electrical Connection: 3 phases 3 wires; Monitors: Under Voltage, Over Voltage, Phase Sequence, Phase Failure; Time Ranges: Trip Time Delay : 0.2 to 10 sec, Power On Delay: 400msec; Output Contact: 1 C / O (SPDT); Output Rating: NC:3A @ 250V AC, NO:5A @ 250V AC; Operating Voltage 310 To 520V AC (L – L); Size 17.5mm; DIN Rail Mount.

    Add to cart

    10 in stock

  • DIN-rail mounted electrical module with orange terminal blocks (L1, L2, L3) and a green status LED.
    Compare

    SELEC 600PSR Phase Protection Relay

    $17.50

    Phase  protection relay; Electrical Connection: 3 phases 3 wires; Monitors: Phase Sequence, Phase Failure & Phase Asymmetry; Time Ranges: Power On Delay: 200msec; Output Contact: 1 C / O (SPDT); Output Rating: NC:3A @ 250V AC, NO:5A @ 250V AC; Operating Voltage 154 To 500V AC (L – L); Size 17.5mm; DIN Rail Mount.

    Add to cart

    19 in stock

  • White programmable timer relay with digital LCD display and orange control buttons for setting timing parameters.
    Compare

    SELEC 900VPR-2-280/600V 3-phases Voltage Protection Relay

    $49.00

    3 phase RMS voltage protection relay; 3 Digits LCD With Backlight; Electrical Connection: 3 phases 3 wires, 3 phases 4 wires; Monitors: Over / Under Voltage, Over / Under Frequency, Phase (Asymmetry, Failure, Sequence); Time Ranges: Trip Time Delay : 0-99.9 sec, Power ON Delay : 2-99.9 sec, Delay ON Release : 0-99.9sec, Response Time : < 200ms; Output Contact: 2 x 1 C / O (SPDT); Output Rating: NC:3A @ 250V AC, NO:5A @ 250V AC; Operating Voltage 280 to 600V AC; Size 35mm; DIN Rail Mount.

    Add to cart

    7 in stock

  • White DIN-rail electronic meter showing a 30.0 A readout on a clear display with orange buttons and multiple terminal screws around the edges.
    Compare

    SELEC 900CPR-1-BL-U Digital Current Protection Relay

    Digital Current Protection Relay; 3 Digits LCD With Backlight; Electrical Connection: 1 phase 2 wires; CT Primary: 1A / 5A – 999A, CT Secondary: 1A / 5A (selectable); Trip Setting: Under Current : 0 – 999A (0-100% of CT Primary Setting), Over Current: 0.5A- 1.19kA (10-120% of CT Primary Setting), Current Asymmetry : 5.0 – 99.9%; Time Ranges: Power ON Delay:0.5-99.9sec, Response Delay (Trip time delay):0-99.9sec, Recovery Time:0-99.9sec, Response Time:<200ms; Output Contact: 2 x 1 C / O (SPDT); Output Rating: NC:3A @ 250V AC, NO:5A @ 250V AC; Supply Voltage 85 to 270V AC / DC; Size 35mm; DIN Rail Mount.

    Read more

    1 in stock

  • White DIN-rail electronic meter showing a 30.0 A readout on a clear display with orange buttons and multiple terminal screws around the edges.
    Compare

    SELEC 900CPR-3-230V Digital Current Protection Relay

    $61.00

    Digital Current Protection Relay; 3 Digits LCD With Backlight; Electrical Connection: 1 phase 2 wires, 3 phases 3 wires, 3 phases 4 wires; CT Primary Setting: 1A / 5A-999A; CT Secondary Setting: 1A / 5A (Selectable); Trip Setting: Under Current : 0 – 999A (0-100% of CT Primary Setting), Over Current : 0.5A- 1.19kA (10-120% of CT Primary Setting), Current Asymmetry : 5.0 – 99.9%; Time Ranges: Power ON Delay:0.5-99.9sec, Response Delay (Trip time delay):0-99.9sec, Recovery Time:0-99.9sec, Response Time:<200ms; Output Contact: 1 C / O (SPDT); Output Rating: NC:3A @ 250V AC, NO:5A @ 250V AC; Supply Voltage 230V AC; Size 35mm; DIN Rail Mount.

    Add to cart

    7 in stock

  • Digital ammeter module displaying 30.0 mA with orange adjustment buttons and screw terminals labeled R, T, C at the top and bottom rail connections.
    Compare

    SELEC 900ELR-2-230V Digital Earth leakage Relay

    $52.00

    Digital Earth leakage Relay; 3 Digits LCD With Backlight; Electrical Connection: 1 phase 2 wires, 3 phases 3 wires, 3 phases 4 wires; Trip Setting: 10mA – 30A; Time Ranges: Power ON Delay: 0.5-99.9sec, Trip Time Delay: 0-99.9sec, Recovery Time Delay: 0-99.9sec; Output Contact: 2 X 1 C / O (SPDT); Output Rating: NC:3A @ 250V AC, NO:5A @ 250V AC; Supply Voltage 230V AC; Size 35mm; DIN Rail Mount.

    Add to cart

    2 in stock

  • Mikro NX232A-240A Earth Fault Relay
    Compare

    Mikro NX232A-240A Earth Fault Relay

    $251.00

    Earth Fault Relay, Current measurement based on fundamental frequency, Two stages settings for earth fault, Local display of measured and set values, Definite time for low-set and high-set, Non-volatile fault value recording, Programmable relay outputs, Complies with IEC 60255 standard, For 50 Hz system, auxiliary voltage 198 ~ 265 V AC, Panel mounting, Size: 96 (H) x 96 (W) x110 (D) mm

    Add to cart

    2 in stock

  • Mikro N202-240AD Earth Fault Relay
    Compare

    Mikro N202-240AD Earth Fault Relay

    $235.00

    Earth Fault Relay, Current measurement based on fundamental frequency, Low-set IDMT normal inverse relay, High-set instantaneous relay, Separate low-set and high-set indicators, Option to disable the high-set element, Front panel access to the test function, Complies with IEC 60255 standard, For 50 Hz system, auxiliary voltage 85 ~ 265 V AC / 110 ~ 370 V DC, Panel mounting, Size: 72 (H) x 72 (W) x 97 (D) mm

    Add to cart

    2 in stock

  • Mikro NX202A-240A Earth Fault Relay
    Compare

    Mikro NX202A-240A Earth Fault Relay

    $144.00

    Earth Fault Relay, Current measurement based on fundamental frequency, Low-set inverse definite minimum time( IDMT ) normal inverse relay, High-set instantaneous relay, Separate low-set and high-set trip indicators, Option to disable the high-set element, Front panel access to the test function, Complies with IEC 60255 standard, For 50 Hz system, auxiliary voltage 198 ~ 265 V AC, Panel mounting, Size: 96 (H) x 96 (W) x 90 (D) mm

    Add to cart

    2 in stock

Best Sellers