Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SVR730850R2100 ABB CM-ENS.13S Liquid Level Maximum/Minimum Monitoring Relay
ABB CM-ENS.13S liquid level monitoring relay 1SVR730850R2100 provides maximum/minimum monitoring of conductive fluids with a 110–130 V AC or 220–240 V AC control supply, adjustable 5–100 kΩ sensitivity and one changeover output contact.
£75.83
Why Choose the ABB CM-ENS.13S Liquid Level Monitoring Relay?
The ABB CM-ENS.13S is a compact liquid level maximum/minimum monitoring relay designed to regulate and supervise the levels of conductive fluids. With ABB order code 1SVR730850R2100, it supports filling and draining applications while helping protect pumps against dry running and tanks against overflow.
The CM-ENS.13S operates with selectable 110–130 V AC or 220–240 V AC control supply voltage and provides an adjustable response sensitivity of 5–100 kΩ. The sensitivity can be set using front-face potentiometers, enabling the relay to be adapted to conductive liquids with different electrical characteristics.
A single changeover (SPDT) output contact rated at 250 V / 4 A provides reliable switching for pumps, contactors, alarms and control circuits. Screw connection technology with double-chamber cage terminals, DIN-rail mounting and a compact 22.5 mm housing make the CM-ENS.13S suitable for space-conscious industrial control panels.
Key Advantages
- Reliable maximum and minimum liquid level monitoring for conductive fluids.
- Suitable for filling and draining applications.
- Helps protect pumps against dry running and tanks against overflow.
- Selectable 110–130 V AC or 220–240 V AC control supply.
- Adjustable 5–100 kΩ sensitivity accommodates different conductive liquids.
- 1 c/o (SPDT) output contact for control and signalling circuits.
- Cascadable design supports expanded liquid-level monitoring arrangements.
- Compact 22.5 mm-wide housing conserves DIN-rail space.
Key Features
- ABB CM-ENS liquid level monitoring relay series.
- Maximum/minimum conductive liquid level monitoring.
- Suitable for filling, draining, overflow and dry-running protection applications.
- 110–130 V AC / 220–240 V AC rated control supply voltage.
- 5–100 kΩ adjustable response sensitivity.
- Three electrode inputs.
- Front-face potentiometers for sensitivity adjustment.
- 1 c/o (SPDT) relay output.
- Output contact rated at 250 V / 4 A.
- Open-circuit operating principle.
- Screw connection technology with double-chamber cage terminals.
- Compact DIN-rail mounting format.
Reliable Maximum and Minimum Level Monitoring
The ABB CM-ENS.13S monitors conductive liquid through connected electrodes and evaluates whether the fluid has reached defined maximum or minimum levels. This enables automatic control of filling and draining processes and provides a practical method of protecting pumps against dry running or tanks against overflow without relying on moving mechanical level switches.
Its adjustable 5–100 kΩ response sensitivity allows the monitoring circuit to be adapted to fluids with different conductivity characteristics. Combined with its three electrode inputs and changeover relay output, the CM-ENS.13S provides dependable level supervision for tanks, reservoirs and liquid-handling processes.
Typical Applications
- Maximum and minimum tank level monitoring.
- Automatic filling and draining systems.
- Pump dry-running protection.
- Tank overflow protection.
- Water and wastewater installations.
- Industrial process tanks and reservoirs.
- Pump control panels.
- Machine and process automation using conductive fluids.
Technical Specifications
Tick the specs you need, then view products that match.
| Monitoring Function | Liquid level | |
|---|---|---|
| Series | CM-ENS | |
| ABB order code | 1SVR730850R2100 | |
| Product type | Liquid level maximum/minimum monitoring relay | |
| Function | Filling or draining monitoring | |
| Suitable medium | Conductive fluids | |
| Rated control supply voltage | 110–130 V AC / 220–240 V AC | |
| Supply frequency | 50/60 Hz | |
| Response sensitivity | Adjustable 5–100 kΩ | |
| Number of electrode inputs | 3 | |
| Output | 1 c/o (SPDT) contact | |
| Output contact rating | 250 V / 4 A | |
| Operating principle | Open-circuit principle | |
| Cascadable | Yes | |
| Terminal type | Screw terminals | |
| Protection rating | IP50 housing / IP20 terminals | |
| Mounting | DIN rail | |
| Operating temperature | -25 to +60 °C | |
| Storage temperature | -40 to +85 °C | |
| Width | 22.5 mm | |
| Height | 85.6 mm | |
| Depth | 103.7 mm | |
| Net weight | 0.153 kg | |
| EAN | 4013614502903 |
Frequently Asked Questions
What is the ABB CM-ENS.13S 1SVR730850R2100 used for?
The ABB CM-ENS.13S is used for maximum and minimum level monitoring of conductive liquids, including filling and draining control, pump dry-running protection and tank overflow protection.
What supply voltage does the CM-ENS.13S require?
The CM-ENS.13S is designed for 110–130 V AC or 220–240 V AC rated control supply voltage at 50/60 Hz.
What sensitivity range does the CM-ENS.13S provide?
The relay provides an adjustable response sensitivity of 5–100 kΩ, allowing it to be adapted to different conductive fluids.
Can the CM-ENS.13S protect pumps and tanks?
Yes. The CM-ENS.13S can be used for pump dry-running protection and tank overflow protection as well as filling, draining and maximum/minimum level monitoring.
What output does the CM-ENS.13S provide?
The relay provides one changeover (SPDT) output contact rated at 250 V / 4 A for connection to contactors, pumps, alarms and control circuits.
Trusted ABB Liquid Level Monitoring Technology
ABB CM-ENS monitoring relays provide dependable conductive liquid level supervision for industrial automation, combining adjustable sensitivity, maximum and minimum level monitoring, pump and tank protection, and compact DIN-rail installation.
