Dold Liquid Level Relay - DIN Rail, 230 V ac 1
- RS Stock No.:
- 465-0621
- Mfr. Part No.:
- MK9151N.12 2-450kOHM AC230V 0-20s
- Brand:
- Dold
Image representative of range
Subtotal (1 unit)*
£156.91
(exc. VAT)
£188.29
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 19 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
---|---|
1 + | £156.91 |
*price indicative
- RS Stock No.:
- 465-0621
- Mfr. Part No.:
- MK9151N.12 2-450kOHM AC230V 0-20s
- 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 | 230 V ac | |
Overall Length | 90mm | |
Overall Width | 22.5mm | |
Overall Depth | 98mm | |
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 230 V ac | ||
Overall Length 90mm | ||
Overall Width 22.5mm | ||
Overall Depth 98mm | ||
Minimum Operating Temperature -20°C | ||
Maximum Operating Temperature +60°C | ||
- COO (Country of Origin):
- DE
MK 9151N - level relay
Application
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 tasks, e.g. recording temperature limits with PTC
Contact protection relay with delay
Monitoring and control of the mix ratio for conductive liquids
General resistance monitoring tasks, e.g. recording temperature limits with PTC
Contact protection relay with delay
Features
3 electrode connections for 2-point and 1-point level control
Measuring circuit for electrodes works on AC voltage generated internally in the device (approx. 30 Hz); therefore no electrolysis occurrence in the fluid
The measuring circuit galvanically isolated from the mains is immune from high levels of interference
Max. lead length to the electrodes: 3000 m
Wide setting range: 2 kΩ → 450 kΩ which enables differentiation between liquid and foam
Response and fallback delay: 0.2 s → 20 s, adjustable separately for MIN and MAX level
Programmable for operating or rest current principle
LEDs to indicate operational readiness and contact position
Output contact 2 changeovers
Overall width: 22.5 mm
Measuring circuit for electrodes works on AC voltage generated internally in the device (approx. 30 Hz); therefore no electrolysis occurrence in the fluid
The measuring circuit galvanically isolated from the mains is immune from high levels of interference
Max. lead length to the electrodes: 3000 m
Wide setting range: 2 kΩ → 450 kΩ which enables differentiation between liquid and foam
Response and fallback delay: 0.2 s → 20 s, adjustable separately for MIN and MAX level
Programmable for operating or rest current principle
LEDs to indicate operational readiness and contact position
Output contact 2 changeovers
Overall width: 22.5 mm
Standards
IEC/EN 60 255, DIN VDE 0435-303
Approvals
CE
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
- Dold Liquid Level Relay - DIN Rail, 24 V dc 1
- Dold Liquid Level Relay - DIN Rail, 220 → 240 V ac 1
- Dold Level Monitoring Relay, DIN Rail
- Dold Current Monitoring Relay DPDT, DIN Rail
- ABB CM-ENS Series Liquid Level Relay - DIN Rail 220 → 240 V ac 1 Voltage Input SPDT Relay
- Dold Frequency Monitoring Relay DIN Rail
- ABB Liquid Level Relay - DIN Rail Snap-On, 220 → 240 V ac
- ABB Liquid Level Relay - DIN Rail Snap-On, 24 V ac