Dold Liquid Level Relay - DIN Rail, 24 V dc 1
- RS Stock No.:
- 240-9005
- Mfr. Part No.:
- MK9151.11 2-450kOhm DC24V
- Brand:
- Dold
Subtotal (1 unit)*
£148.35
(exc. VAT)
£178.02
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 2 unit(s) ready to ship from another location
- Plus 9 unit(s) shipping from 24 October 2025
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Units | Per unit |
---|---|
1 + | £148.35 |
*price indicative
- RS Stock No.:
- 240-9005
- Mfr. Part No.:
- MK9151.11 2-450kOhm DC24V
- Brand:
- Dold
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
---|---|---|
Brand | Dold | |
Number of Inputs | 1 | |
Mounting Style | DIN Rail | |
Probe Voltage | 10V ac | |
Supply Voltage | 24 V dc | |
Overall Length | 82mm | |
Overall Width | 22.5mm | |
Overall Depth | 99mm | |
Minimum Operating Temperature | -20°C | |
Maximum Operating Temperature | +60°C | |
Select all | ||
---|---|---|
Brand Dold | ||
Number of Inputs 1 | ||
Mounting Style DIN Rail | ||
Probe Voltage 10V ac | ||
Supply Voltage 24 V dc | ||
Overall Length 82mm | ||
Overall Width 22.5mm | ||
Overall Depth 99mm | ||
Minimum Operating Temperature -20°C | ||
Maximum Operating Temperature +60°C | ||
- COO (Country of Origin):
- DE
MK 9151 - level relay
The MK9151 is used for
Level monitoring and control of conductive liquids and powders, e.g. maximum and minimum fill level, protection against overfilling and dry running
Monitoring and control of the mix ratio for conductive liquids
General resistance monitoring, e.g. recording temperature limits with PTC (device to IEG 255, VDE 0435 section 303)
Monitoring and control of the mix ratio for conductive liquids
General resistance monitoring, e.g. recording temperature limits with PTC (device to IEG 255, VDE 0435 section 303)
Features
3 electrode connections for 2-point and 1-point level control
The metering circuit galvanically isolated from the mains is immune from high levels of interference
Max. lead length to the electrodes: 1500 m
Wide setting range: 2 → 450 kΩ which enables differentiation between liquid and foam
Adjustable response and fallback delay: 0.2 → 20 s
Programmable for working current principle (without bridge) or rest current principle (X1-X2 and/or X1-COM bridge)
2 LEDs to indicate operating readiness and contact position
1 changer
Overall width 22.5 mm, protection class IP40
The metering circuit galvanically isolated from the mains is immune from high levels of interference
Max. lead length to the electrodes: 1500 m
Wide setting range: 2 → 450 kΩ which enables differentiation between liquid and foam
Adjustable response and fallback delay: 0.2 → 20 s
Programmable for working current principle (without bridge) or rest current principle (X1-X2 and/or X1-COM bridge)
2 LEDs to indicate operating readiness and contact position
1 changer
Overall width 22.5 mm, protection class IP40

Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.
Application Examples
Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications including waste water management and the monitoring and management of corrosive liquid media, and designed specifically to provide for the:
Monitoring and control of liquid levels
Protection of pumps against dry running
Ability to detect liquid leaks in a system
Control of media mixing ratios
Control of liquid levels
Protection of pumps against dry running
Ability to detect liquid leaks in a system
Control of media mixing ratios
Control of liquid levels
Related links
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