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  Mains monitoring relay  (39,097 offers of 6,351,559 product items)

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Dold Frequency Monitoring Relay, SPDT, DIN Rail / 1812792 (1 offer) 
Monitoring of local generator sets and voltage supplies For precise frequency measuring with fast response time High disturbance immunity Separately adjustable trip points and separate outputs for ...
DOLD
MK9143N.38 +/-5Hz UH=AC230V tv=0-20s tan=0-30s
£ 234.302*
per piece
 
 piece
Meter: multifunction; digital,mounting; LCD; 5 digits,6 digits (1 offer) 
Manufacturer: LUMEL Mounting: on panel;for DIN rail mounting (optional) Input: 0...4000Ω;0...400Ω;current time (00,00...23,59);voltage 0...60mV;current -20...20mA;E-type thermocouple (-100...1000°C...
LUMEL
N32U 120000000M0
£ 257.96*
per piece
 
 piece
STRUTHERS-DUNN 450XBX4069-110/125VDC RELAY, 125VDC, 40A, DPDT, DIN RAIL, Cont (1 offer) 
Relay Mounting DIN Rail, Panel Coil Type - Contact Voltage VAC 277 VAC Contact Current 40 A Contact Voltage VDC 28 VDC Coil Voltage 125 VDC Coil Resistance 6 kohm Contact Configuration DPDT Relay T...
Struthers-Dunn
450XBX4069-110/125VDC
£ 60.12*
per piece
 
 piece
Dold Soft Starter, 1.5 kW, 3 kW, 230 V ac, 400 V ac, 1 Phase, IP30 / 2409140 (1 offer) 
If devices are used in 230 V three-phase networks, the next higher power stage must be used for a given motor power, because the motor current determines the overall size of the device. The startin...
DOLD
BA9010 3AC230/400V 1.5/3kW
£ 235.475*
per piece
 
 piece
Level monitoring relay; conductive fluid level; 380÷415VAC (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: screw terminals Output 1 properties: 1 relay output, changeover;1 relay output, NO Supply voltage: 380...415V AC Kit contents: monitoring relay Related items...
LOVATO Electric
LVM40A415
£ 170.12*
per piece
 
 piece
STRUTHERS-DUNN SK-CIR8-DS RELAY SOCKET, Socket Mounting:DIN Rail, (1 offer) 
Current Rating - Voltage Rating - Product Range - Socket Terminals Screw No. of Pins 8 Pins Socket Mounting DIN Rail, Panel SVHC No SVHC (27-Jun-2024)
Struthers-Dunn
SK-CIR8-DS
£ 8.37*
per piece
 
 piece
Eaton DILA-31 auxiliary contact (4 offers)
Eaton
276364
£ 37.95*
per piece
 
 piece
Dold Insulation Monitoring Relay, 1, 3 Phase, DPDT, 0 → 500V ac, DIN Rail / 1812772 (1 offer) 
For single and 3-phase AC-systems up to 0 .. 500 V and 10 .. 1000 Hz Monitors also disconnected voltage systems Adjustable tripping value RALof 5 .. 100 kΩ De-energized on trip Auxiliary voltage, m...
DOLD
MK5880N.12 AC50-400Hz 220-240V 5-100kOhm
£ 218.109*
per piece
 
 piece
Meter: multifunction; digital,mounting; LCD; 5 digits,6 digits (1 offer) 
Manufacturer: LUMEL Mounting: on panel;for DIN rail mounting (optional) Output: relay x4 Kind of display used: LCD IP rating: IP65 (from the front) Supply voltage: 20...60V DC;20...40V AC Interface...
LUMEL
N32O 220000000M0
£ 255.77*
per piece
 
 piece
T-BAR (OLYMPIC CONTROLS) 88601 RELAY SOCKET, Socket Terminals:-, No. of (1 offer) 
Socket Mounting Panel Current Rating 5 A No. of Pins 20 Pins Product Range 801 Series Voltage Rating - Socket Terminals - SVHC No SVHC (21-Jan-2025)
T-BAR (OLYMPIC CONTROLS)
88601
£ 96.96*
per piece
 
 piece
DURAKOOL DG85B-8011-76-1024 AUTOMOTIVE RELAY, SPDT, 24VDC, 60A (1 offer) 
Contact Voltage DC Nom 30 V Contact Configuration SPDT Coil Resistance 330 ohm Product Range DG85 Relay Mounting Panel Mount Contact Material Silver Nickel Relay Terminals Quick Connect Coil Voltag...
Durakool
DG85B-8011-76-1024
£ 10.67*
per piece
 
 piece
Dold Frequency Monitoring Relay, DPDT, 15 → 280V ac, DIN Rail / 1812790 (1 offer) 
Detection of over- or under frequency of alternating voltage (adjustable function) Fast reaction time by measuring duration of cycle of input frequency Universal measuring input for AC-voltages of ...
DOLD
MK9837N.12 5-600Hz UH=AC230V
£ 235.122*
per piece
 
 piece
Liquid leakage monitoring relay; conductive fluid level (1 offer) 
Manufacturer: OMRON Mounting: socket Operating temperature: -10...55°C Kind of output 1: SPDT x2 Supply voltage: 100...240V AC Body dimensions: 38x49.4x84mm Number of pins: 11 Related items: PF113A...
Omron
61F-WL-CP11-NRA
£ 124.38*
per piece
 
 piece
TE CONNECTIVITY T9AS5D12-18 RELAY, SPDT, 240VAC, 28VDC, 30A, Contact (1 offer) 
Contact Voltage VDC 28 V Product Range T9A Series Relay Mounting Through Hole Relay Terminals Solder Contact Material Silver Cadmium Oxide Coil Voltage 18 VDC Contact Configuration SPDT SVHC Cadmiu...
TE Connectivity
T9AS5D12-18
£ 4.52*
per piece
 
 pieces
DURAKOOL DG85C-8021-75-1024 RELAY, SPST-NO, 24VDC, 80A (1 offer) 
Contact Voltage DC Nom 30 V Contact Configuration SPST-NO Coil Resistance 330 ohm Product Range DG85 Relay Mounting Through Hole Contact Material Silver Nickel Relay Terminals Solder Coil Voltage 2...
Durakool
DG85C-8021-75-1024
£ 12.30*
per piece
 
 piece
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