The Kelco K series heavy-duty level regulator is a compact three-wire float switch for highly accurate and repeatable single-point level sensing and control applications. It is ideal for use in water, sea water and most acids and alkali solutions.
It will provide a stable switching action with a very high degree of reliability. The teardrop shape of the float makes it ideal for effluent and sewerage usage, as the float cell has no shoulders or edges for solids to build on.
As the K series level regulator is not made from or contains any hazardous materials such as mercury or lead it can be reliably and safely used in potable water systems.
K Series Level Switch features
- Australian made
- Low differential switching
- All direction tilting action
- S.P.D.T 3 wire switching action
- Polypropylene, CPE and Santoprene construction
- A wide range of cable lengths is available
- Stable repeatable switching action
- No Mercury or lead components
- Compact size, 75mm diameter
- Optional cable weight available
K Series Applications
- Basic liquid level control
- Multi-point level control
- Sewerage level control
- Chemical level control
- High and low-level alarms
- Self-powered signalling
- Pump protection
Kelco K Series Cable Data Specifications
| Cable Type |
Heavy-duty EPR / CPE
|
| Outer sheathing | CPE |
| Inner sheathing | P-EP-90 |
| Cores | 3 Cores, each 0.75mm Sq Copper |
| Cable diameter | 7.5mm nominal |
| Core colours | Blue (common) Black (normally closed) Brown (normally open) |
| Cable voltage rating Uo/U | 600V / 1Kv |
| AC Test voltage | 2.5 Kv |
| Cable current carrying capacity | 18 Amps continuous at a temperature of 30.5°C |
| Minimm benr radii | 40mm |
| Maximum ambient operating temperature | 80°C |
| Minimum permissible ambient temperature | -40°C |
| Minimum permissible ambient temperature for fully flexible operation | -25°C |
| Cable maximum permissible short circuit temperature | 250°C |
| Standard of construction | CNELEC HD 22.4 S4 & VDE0282-4/2005 |
| Cable lenghts available | 4, 6, 10, 20, 30, 50 metres |
Switch Data Specifications
| Cable Type |
Single pole double throw
|
| Contact Type | 0.5mm |
| Contact material | Silver Alloy |
| Contact resistance | 15 Mega Ohms maximum |
| Rated voltage AC | 0 - 240V AC |
| Rated voltage DC | 0 - 250V DC |
| Current rating resistive AC | 15 Amps at 250V AC, 15A at 125V DC |
| Motor load current rating AC | 1.5 Amps at 250V AC, 2.5A at 125V AC (1/4HP) |
| Current rating resistive DC | 15 Amps at 14V DC, 6 Amps at 30V DC |
| Maximum lamp load AC | 1.25 Amps at 250V AC |
| Maximum lamp load DC | 1.5 Amps at 30V DC |
| Maximum operating frequency, electrical | 24 operations per minute |
| Dielectric strength between contacts | 1000V AC at 50 to60Hz for 1 minute |
| Insulation resistive | 100 Mega Ohms minimum (At 500V DC) |
| Life expectancy mechanical | 20,000,000 operations minimum |
| Life expectancy electrical | 5000,000 operations minimum |
| Approved standards | UL508 E41515 CSA C22.2 No.55 (File No. LR21642) |
Operating Environment Specifications
| Maximum submergence |
30 metres, 300 kPa Static Pressure
|
| Maximum liquid temperature | 60°C |
| Minimum liquid temperature | -20°C |
| Liquid specific gravity | >0.82 |
| Liquid Ph | 1 to 14 |
| Smallest diameter well that the switch will operate | within a 160mm inside diameter vertically mounted pipe |
| Liquied level change for the switch to operate | 35mm |
| Closes switching point to tank floor | 50mm |
| Smallest opening through which the switch will fit | 75mm |
| Minimum distance between float and closest tethering point/cable weight | 150mm |
| Suitability for use in sodium hypochorite | fully compatible |
| Suitablity for use in sea water | fully compatible |
| Suitability for use in potable water | fully compatible |
Important: Specifications are subject to change without notice
K Series product dimensions
K Series typical installation
