Dold MK 9151N Series Liquid Level Relay -, DIN Rail 1 Voltage Input 24 V-Rated Relay
- RS Stock No.:
- 240-9005
- Mfr. Part No.:
- MK9151.11 2-450kOhm DC24V
- Brand:
- Dold
Subtotal (1 unit)*
$433.60
(exc. GST)
$476.96
(inc. GST)
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- 3 unit(s) ready to ship from another location
- Plus 9 unit(s) shipping from 16 February 2026
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Units | Per unit |
|---|---|
| 1 + | $433.60 |
*price indicative
- RS Stock No.:
- 240-9005
- Mfr. Part No.:
- MK9151.11 2-450kOhm DC24V
- Brand:
- Dold
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Dold | |
| Product Type | Liquid Level Relay | |
| Number of Inputs | 1 | |
| Probe Voltage | 10V ac | |
| Overall Length | 82mm | |
| Mount Type | DIN Rail | |
| Response Time | 20s | |
| Overall Depth | 99 mm | |
| Minimum Operating Temperature | -20°C | |
| Terminal Type | Clamp | |
| Maximum Operating Temperature | 60°C | |
| IP Rating | IP20 | |
| Maximum Supply Voltage | 24V | |
| Standards/Approvals | CE | |
| Overall Width | 22.5mm | |
| Hazardous Area Certification | No | |
| Current Rating | 4 A | |
| Input Type | Voltage | |
| Number of Outputs | 2 | |
| Output Type | Relay | |
| Series | MK 9151N | |
| Select all | ||
|---|---|---|
Brand Dold | ||
Product Type Liquid Level Relay | ||
Number of Inputs 1 | ||
Probe Voltage 10V ac | ||
Overall Length 82mm | ||
Mount Type DIN Rail | ||
Response Time 20s | ||
Overall Depth 99 mm | ||
Minimum Operating Temperature -20°C | ||
Terminal Type Clamp | ||
Maximum Operating Temperature 60°C | ||
IP Rating IP20 | ||
Maximum Supply Voltage 24V | ||
Standards/Approvals CE | ||
Overall Width 22.5mm | ||
Hazardous Area Certification No | ||
Current Rating 4 A | ||
Input Type Voltage | ||
Number of Outputs 2 | ||
Output Type Relay | ||
Series MK 9151N | ||
- 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)
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
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
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