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  Phase unbalance relays  (1,155 offers of 5,365,741 product items)

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OMRON INDUSTRIAL AUTOMATION K8AKPH1200500VAC Phase Loss Monitor, 200-480VAC (1 offer) 
Phase Monitoring Range Max 480 VAC Relay Terminals Screw Phase Type 3 Phase Relay Mounting DIN Rail Supply Voltage Max 480 VAC Power Consumption 4.1 VA Contact Current 5 A Phase Monitoring Range Mi...
Omron
K8AKPH1200500VAC
from £ 46.57*
per piece
 
 piece
Shelly Qubino Wave PRO 1PM electrical relay Red (1 offer) 
Professional 1-channel DIN rail Z-Wave® smart switch with dry contacts​ Suitable for home and facility automation with remote control. DIN-rail mountable inside a breaker box. Enhanced safety featu...
Shelly
SHELLY QUBINO WAVE PRO 1PM
from £ 56.24*
per piece
 
 piece
Vertiv Geist Switched power distribution unit (PDU) 24 AC outlet(s) 0U Black (1 offer) 
Vertiv™ Geist™ Switched rack PDUs (rPDU) provide a comprehensive view of critical IT equipment power usage, both at the rack and via remote access with the added ability to remotely turn on, turn o...
Vertiv
GS30001L
£ 1,760.00*
per piece
 
 piece
Raritan PX3TS-1875R-N1 power distribution unit (PDU) 9 AC outlet(s) 1U Black (1 offer) 
Rack Transfer Switches Engineered for True Reliability Raritan's hybrid rack transfer switch system is the first in the world to offer both electromechanical relays and silicon-controlled rectifier...
Raritan
PX3TS-1875R-N1
£ 1,802.90*
per piece
 
 piece
Broyce Control Phase Monitoring Relay, 3 Phase, 320 → 490V ac, DIN Rail / 2061444 (1 offer) 
The Broyce Control monitors it’s own three-phase supply and indicates the status of each connected phase along with whether the phase sequence is correct or not. If a phase is lost, the correspondi...
Broyce Control
LPPI
£ 43.07*
per piece
 
 piece
Meter: network parameters; for DIN rail mounting; LCD; NR30IOT (1 offer) 
Manufacturer: LUMEL Mounting: for DIN rail mounting Output: relay x2;monitoring relay Operating temperature: -10...55°C Kind of display used: LCD IP rating: IP50 Supply voltage: 20...60V DC;20...40...
LUMEL
NR30IOT 1222MSM0
from £ 467.33*
per piece
 
 piece
Raritan PX3-5722U-V2 power distribution unit (PDU) 36 AC outlet(s) 0U Black (1 offer) 
PX3-5722U-V2 Monitored and switched rack power distribution unit (0U [vertical], 22.2kVA, 36 outlets). INPUT: 400v (3-phase WYE), 32a - IEC 60309 3P+N+E 6h 32A plug (4P5W); OUTPUT: 30@ C13, 6@ C19 ...
Raritan
PX3-5722U-V2
£ 2,363.90*
per piece
 
 piece
Broyce Control Current Monitoring Relay, SPDT, DIN Rail / 8505402 (1 offer) 
UL Certification. L Series - Selectable Control Relays. L Series relay range of timers, control and three phase relays incorporate the latest technology and offer a wide range of user adjustable fe...
Broyce Control
LMCCR-2A 24-230VAC/DC
from £ 101.446*
per piece
 
 piece
Meter: power quality analyser; on panel; digital,mounting; ND45 (1 offer) 
Manufacturer: LUMEL Mounting: on panel Rated voltage: 120V;69.3V Input: logic inputs x6;Pt 100/Pt1000 x2 Output: relay x4 Operating temperature: 0...50°C Kind of display used: LCD TFT 5,6" IP ratin...
LUMEL
ND45 3211M000
from £ 1,659.82*
per piece
 
 piece
Broyce Control Phase, Voltage Monitoring Relay, 1 Phase, SPDT, DIN Rail / 8505395 (2 offers) 
UL Certification. L Series - Control Relays. L Series relay range of Timers, Control and Three Phase relays incorporate the latest technology and offer a wide range of user adjustable features. 17....
Broyce Control
LXCVR 230V
from £ 53.32*
per piece
 
 piece
Meter: power quality analyser; on panel; digital,mounting; ND45 (1 offer) 
Manufacturer: LUMEL Mounting: on panel Rated voltage: 100V;57.7V Input: logic inputs x6;Pt 100/Pt1000 x2 Output: relay x4 Operating temperature: 0...50°C Kind of display used: LCD TFT 5,6" IP ratin...
LUMEL
ND45 1211M000
from £ 1,661.40*
per piece
 
 piece
Broyce Control Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 243 → 540 V, DIN Rail / 1356186 (1 offer) 
UL Certification. LPRA/2 Phase Asymmetry, Failure, Sequence, Under Voltage plus Time Delay. Broyce Controls L-Series signal conditioners use a QR barcode marking method allowing direct access to al...
Broyce Control
LPRA/2 400V
£ 84.35*
per piece
 
 piece
Meter: power quality analyser; on panel; digital,mounting; ND45 (1 offer) 
Manufacturer: LUMEL Mounting: on panel Rated voltage: 230V;400V Input: Pt 100/Pt1000 x2 Output: relay x8 Operating temperature: 0...50°C Kind of display used: LCD TFT 5,6" IP rating: IP65 (from the...
LUMEL
ND45 2111M000
from £ 1,620.04*
per piece
 
 piece
Broyce Control Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 243 → 540 V, DIN Rail / 1356179 (2 offers) 
UL Certification. LPRT/2 Phase Failure, Phase Sequence, Under Voltage plus Time Delay. Broyce Controls L-Series signal conditioners use a QR barcode marking method allowing direct access to all tec...
Broyce Control
LPRT/2 400V
from £ 81.86*
per piece
 
 piece
Meter: power quality analyser; on panel; digital,mounting; ND45 (1 offer) 
Manufacturer: LUMEL Mounting: on panel Rated voltage: 100V;57.7V Input: Pt 100/Pt1000 x2 Output: relay x8 Operating temperature: 0...50°C Kind of display used: LCD TFT 5,6" IP rating: IP65 (from th...
LUMEL
ND45 1111M000
from £ 1,668.75*
per piece
 
 piece
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