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  Monitoring Relays (822 items)

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Dold Level Monitoring Relay, DIN Rail / 3277663 (1 offer) 
IL9151 - level relay with two separately operating changeovers. The IL9151 is used for. Level monitoring and control of conductive liquids and powders, e.g. maximum and minimum fill level, protecti...
DOLD
IL9151.12 2- 50kOHM DC24V 0.2-20S
£ 164.84*
per piece
 
 piece
Dold Monitoring Relay / 2408888 (1 offer) 
IK8715 / 003 — Load-Shedding Relay. Reduces the cable cross-sections required for large electrical consumers 17.5 mm overall width. The IK8715 load-shedding relay is used in installation facilities...
DOLD
IK8715/003 6-40A
£ 60.30*
per piece
 
 piece
Dold Multifunction Monitoring Relay, 3 Phase, SPDT, 24 → 400V ac, DIN Rail / 1812796 (1 offer) 
Multifunction measuring relay Voltage monitoring (1- and 3-phase) Current monitoring Frequency monitoring Power factor cos phi Phase sequence, phase failure, asymmetry Effective-, reactive- and app...
DOLD
MK9300N.11/022 3AC24...400V AC12A UH=DC24V
£ 258.371*
per piece
 
 piece
Dold Multifunction Monitoring Relay, DPDT, DIN Rail / 1812803 (1 offer) 
Digital adjustable multifunction timer Functions can be adjusted separately for each output relay Off (OFF) Instantaneous contact (ON) On-delay (AV) Fleeting on make (EW) Delayed pulse with adjusta...
DOLD
MK7830N.82 AC/DC24V+AC230V 0,02s-9999h
£ 176.923*
per piece
 
 piece
Dold Multifunction Monitoring Relay, DPDT, DIN Rail / 1812805 (1 offer) 
Digital adjustable multifunction timer Functions can be adjusted separately for each output relay Off (OFF) Instantaneous contact (ON) On-delay (AV) Fleeting on make (EW) Delayed pulse with adjusta...
DOLD
MK7830N.82PS AC/DC24V + AC230V 0,02s-9999h
£ 184.616*
per piece
 
 piece
Dold Multifunction Monitoring Relay, DPDT, DIN Rail / 1812806 (1 offer) 
Digital adjustable multifunction timer Functions can be adjusted separately for each output relay Off (OFF) Instantaneous contact (ON) On-delay (AV) Fleeting on make (EW) Delayed pulse with adjusta...
DOLD
MK7830N.82PC AC/DC24V + AC230V 0,02s-9999h
£ 189.427*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, DIN Rail / 3586917 (1 offer) 
IK9169 phase monitor, IK9168 phase monitor display. Detection of phase failure in three-phase systems Single-phase connection also an option Rest current principle Adjustable phase sequence LED dis...
DOLD
IK9168 3AC50/60Hz 230/400V
£ 52.708*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, DIN Rail / 3586951 (1 offer) 
IK9179 three-phase monitor and IK9178 display. Monitoring of three-phase systems for direction of rotation No auxiliary voltage LED display lights up when a clockwise rotation field is detected 17....
DOLD
IK9178 3AC50/60Hz 400V
£ 52.837*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, DPDT, DIN Rail / 2408923 (1 offer) 
Phase sequence relay, BA9041. Detects phase sequence errors and phase failure with 2 changeovers Overall width 45 mm. The BA9041 can recognise the phase sequence L1 - L2 - L3 of a three-phase netwo...
DOLD
BA9041 3AC50Hz 400V
£ 165.063*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, DPDT, DIN Rail / 2409027 (1 offer) 
Fuse monitor, IL9075/001. Recognises fuse failures in three-phase networks up to 440 V Failure notification even with loads switched off Usable for all types and sizes of fuses Independent of rotat...
DOLD
IL9075.12/001 AC50-400Hz 400V
£ 147.382*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, DPDT, DIN Rail / 4650671 (1 offer) 
IEC/EN 60 255, DIN VDE 0435-303. CE. MK 9056N - Phase sequence relay. Detects phase sequence errors Output contact 2 changeovers Overall width: 22.5 mm. The MK 9056N monitors compliance with the ph...
DOLD
MK9056N.12 AC50/60Hz 380-500V
£ 128.255*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, DPDT, DIN Rail / 4650744 (1 offer) 
MK 9040N - Asymmetry relay. Detects voltage asymmetry, phase loss, reverse voltage and phase sequence Impervious to symmetrical harmonics up to distortion factor of K 20 % 2 LED displays for voltag...
DOLD
MK9040N.12/001 3AC50/60Hz 400V
£ 149.065*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail / 3277679 (2 offers) 
IK9179 three-phase monitor and IK9178 display. Monitoring of three-phase systems for direction of rotation No auxiliary voltage LED display lights up when a clockwise rotation field is detected 17....
DOLD
IK9179.11 3AC50/60Hz 400V
from £ 72.32*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail / 3587049 (2 offers) 
IK9169 phase monitor, IK9168 phase monitor display. Detection of phase failure in three-phase systems Single-phase connection also an option Rest current principle Adjustable phase sequence LED dis...
DOLD
IK9169.11 3AC380-415/220-240V
from £ 75.003*
per piece
 
 piece
Dold Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail / 4459074 (1 offer) 
IEC 255, EN 60255, VDE 0435 part 303. Load monitor BH 9097. The load monitor is suitable for monitoring electrical industrial drive systems with variable motor loads. Features:. The BH 9097 load mo...
DOLD
BH9097.38/001 3AC400V AC40A
£ 438.264*
per piece
 
 piece
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