
KZ / A2 / A6 / C3 · PUMP CONTROLLER
Deep-well controllers.
KZ panels and A2/A6/C3 cabinets.
Published data groups the KZ single-phase electric panel with A2/A6/C3 intelligent control cabinets for protection and automatic pump control. No current English selector records are attached to this Contents entry.
● Published pages 55-57 · KZ + A2/A6/C3 · no current selector records

KZ RANGE0.5-3.0 HP
A2 RANGE0.5-3.0 HP
A6 RANGE1.0-10.1 HP
C3 RANGE1.0-20.1 HP
Series Overview
Key specifications shared across the KZ / A2 / A6 / C3 series.
KZ is published for protection and control of a single-phase submersible electric pump, with plastic enclosure, wall mounting with fins, incorporated capacitor, and a main switch with manual-reset thermal device. A2/A6/C3 cabinets add LCD running information, auto/manual switching, under-voltage and over-voltage protection, push-button calibration, and dry-running protection without a well float or liquid probe. Published technical data includes short-circuit action under 0.1 s, over-current action 5 s with 30 min recovery, dry-running action 6 s with 30 min recovery, and open-phase action under 2 s for three-phase units.
Model Range
Compare hydraulic performance across all available power ratings.
Published KZ rows list rated power, overload current, capacitor and packing data. Confirm North American supply voltage, including any 115 V customization for single-phase 60 Hz service, when ordering.
| Model | Power HP | Overload A | Capacitor µF / 450 V | Dimension mm | G.W. kg |
|---|---|---|---|---|---|
| KZ0.5 | 0.5 | 4 | 15 | 200x155x80 | 0.50 |
| KZ0.75 | 0.7 | 5 | 20 | 200x155x80 | 0.51 |
| KZ1 | 1.0 | 8 | 30 | 200x155x80 | 0.55 |
| KZ1.5 | 1.5 | 10 | 35 | 200x155x80 | 0.59 |
| KZ2 | 2.0 | 12 | 45 | 200x155x80 | 0.63 |
| KZ3 | 3.0 | 16 | 50 | 200x155x80 | 0.63 |
Model Range
Compare hydraulic performance across all available power ratings.
A2 covers single-phase 0.37-2.2 kW. A6 covers three-phase 0.75-7.5 kW. C3 covers three-phase 0.75-15 kW with W/L/P control types and one- or two-pump counts.

PUBLISHED ILLUSTRATION
A2 / A6 / C3
Published catalog illustration for the intelligent cabinet family.| Model | Power HP | Capacitor µF / 450 V | Dimension mm | G.W. kg |
|---|---|---|---|---|
| A2-0.37 | 0.5 | 15 | 260x170x95 | 1.3 |
| A2-0.55 | 0.7 | 20 | 260x170x95 | 1.3 |
| A2-0.75 | 1.0 | 30 | 260x170x95 | 1.3 |
| A2-1.1 | 1.5 | 35 | 260x170x95 | 1.3 |
| A2-1.5 | 2.0 | 45 | 260x170x95 | 1.3 |
| A2-2.2 | 3.0 | 50 | 260x170x95 | 1.3 |
| A6-1 | 1-5.5 | / | 260x170x105 | 1.3 |
| A6-2 | 7.5-10 | / | 260x170x105 | 1.3 |
| C3-W1/L1/P1-4 | 1-5.5 | / | 430x320x180 | 2.8 |
| C3-W1/L1/P1-7.5 | 7.5-10 | / | 430x320x180 | 2.8 |
| C3-W1/L1/P1-11 | 15 | / | 430x320x180 | 2.9 |
| C3-W1/L1/P1-15 | 20 | / | 430x320x180 | 3.0 |
| C3-W2/L2/P2-4 | 1-5.5 | / | 430x320x180 | 3.3 |
| C3-W2/L2/P2-7.5 | 7.5-10 | / | 430x320x180 | 3.4 |
| C3-W2/L2/P2-11 | 15 | / | 430x320x180 | 3.7 |
| C3-W2/L2/P2-15 | 20 | / | 430x320x180 | 3.8 |
Published A2 input is AC 220-240 V single-phase 50/60 Hz. Published A6/C3 input is AC 380 V three-phase 50/60 Hz. No current English selector records are listed for these controller codes.
FAQ
Selection questions answered from evidence.
What does this Contents entry cover?
Deep-well published pages 55-57 cover the KZ single-phase electric panel and the A2/A6/C3 intelligent control cabinet family under one Contents entry.
How is KZ different from A2?
KZ is published as a single-phase panel with incorporated capacitor, main switch with manual-reset thermal device, and indicator lights. A2 is published as an intelligent single-phase cabinet with LCD display and broader protection functions.
What do W, L and P mean on C3?
Published nomenclature defines W as float switch or water level electrode, L as liquid level type, and P as pressure type. Digits 1 and 2 mark single-pump or two-pump control.
Is dry-running protection available without a well float?
Yes. Published A2/A6/C3 features state dry-running protection without installing a float switch or liquid probe in the well. Application diagrams also note that a float can still work in an upper tank or well when used.
Where is the MC steel cabinet documented?
MC series steel-enclosure cabinets are published on the separate A2/A6/C3/MC intelligent control cabinet Contents page.
Continue from published data