QM, QT

Summary

Product identification

This document describes Calpeda QM and QT series control panels, designed for managing 1, 2, or 3 pumps (single-phase or three-phase motors) in various applications including bore-hole, submersible, surface, pressure booster sets, and drainage systems.

Control panel types include:

• QM: For 1 single-phase pump, direct starting.
• M COMP: For 1 single-phase pump, direct starting, with thermal protector.
• PFC-M: For 1 single-phase pump, with Power Factor (PF) control for dry-running protection.
• T COMP: For 1 three-phase pump, direct starting, with thermal relay.
• PFC-T: For 1 three-phase pump, with Power Factor (PF) control for dry-running protection.
• QML/A 1 D: For 1 single-phase pump, direct starting, with MPS 3000 electronic board.
• QTL/A 1 D: For 1 three-phase pump, direct starting, with MPS 3000 electronic board.
• QTL 1 D FTE: For 1 three-phase pump, direct starting, electromechanical, with E 1000 LED card.
• QTL/A 1 ST FT: For 1 three-phase pump, Y/Δ starting, with MPS 3000 electronic board.
• QTL/A 1 ST FT-RH: For 1 three-phase submersible drainage pump, Y/Δ starting, with MPS 3000 electronic board.
• QTL 1 ST FTE: For 1 three-phase pump, Y/Δ starting, electromechanical, with E 1000 LED board.
• QTL 1 SS E: For 1 three-phase pump, soft starter, with E 1000 LED board.
• QTL 1 IS FTE: For 1 three-phase submersible pump, Stator Impedance starter, with E 1000 LED board.
• QML/A 2 D: For 2 single-phase pumps, direct starting, with MPS 3000 electronic board.
• QTL/A 2 D: For 2 three-phase pumps, direct starting, with MPS 3000 electronic board.
• QTL/A 2 ST FT: For 2 three-phase pumps, Y/Δ starting, with MPS 3000 electronic board.
• QTL/A 2 ST FT-RH: For 2 three-phase submersible drainage pumps, Y/Δ starting, with MPS 3000 electronic board.
• QML/A 3 D: For 3 single-phase pumps, direct starting, with MPS 3000 electronic board.
• QTL/A 3 D: For 3 three-phase pumps, direct starting, with MPS 3000 electronic board.
• QTL/A 3 ST FT: For 3 three-phase pumps, Y/Δ starting, with MPS 3000 electronic board.
• QTL/A 3 ST FT-RH: For 3 three-phase submersible drainage pumps, Y/Δ starting, with MPS 3000 electronic board.
• QML 1 VFT: For 1 variable speed three-phase 230V motor, single-phase mains, with frequency converter and MPS 4000 electronic board.
• QTL 1 VFT: For 1 variable speed three-phase motor, three-phase mains, with frequency converter and MPS 4000 electronic board.
• QML 2 VFT: For 2 variable speed three-phase 230V motors, single-phase mains, with frequency converters and MPS 4000 electronic board.
• QTL 2 VFT: For 2 variable speed three-phase motors, three-phase mains, with frequency converters and MPS 4000 electronic board.

Operating limits

• Ambient temperature: From -5 °C to +40 °C.
• Relative humidity: From 20% to 90% without condensation (for PFC-M, PFC-T, and VFT models).
• Protection rating:
  • IP 55 for most models (QM, PFC-M, QML/A, QTL/A, QTL 1 D FTE, QTL 1 ST FTE, QTL 1 SS E, QTL 1 IS FTE).
  • IP 44 for M COMP, T COMP, QML 1 VFT, QTL 1 VFT, QML 2 VFT, QTL 2 VFT.

Electrical

• Mains supply:
  • Single-phase: 230V ±10% 50/60 Hz (for QM, M COMP, PFC-M, QML/A 1 D, QML/A 2 D, QML/A 3 D, QML 1 VFT, QML 2 VFT). Other voltages available on request.
  • Three-phase: 230V or 400V ±10% 50/60 Hz (for T COMP). Other voltages available on request.
  • Three-phase: 400V ±10% 50/60 Hz (for QTL/A 1 D, PFC-T, QTL/A 1 ST FT, QTL/A 1 ST FT-RH, QTL 1 D FTE, QTL 1 ST FTE, QTL 1 SS E, QTL 1 IS FTE, QTL/A 2 D, QTL/A 2 ST FT, QTL/A 2 ST FT-RH, QTL/A 3 D, QTL/A 3 ST FT, QTL/A 3 ST FT-RH, QTL 1 VFT, QTL 2 VFT). Other voltages available on request.
• Motor power ranges:
  • Single-phase 230V: From 0.25 kW to 3 kW.
  • Three-phase 230V: From 0.37 kW to 4 kW (T COMP).
  • Three-phase 400V: From 0.25 kW to 132 kW.
• Max output current: Up to 255 A (for QTL/A 1 ST 92 FT-RH).
• Capacitor voltage: 450 Vc (for QM, M COMP, PFC-M).
• Starting methods:
  • Direct On Line (D.O.L.)
  • Star-Delta (Y/Δ)
  • Soft start
  • Impedance stator
  • Variable speed (frequency converter)

Mechanical / hydraulic

• Case material:
  • Thermoplastic case (for QM, M COMP, PFC-M, QML/A, QTL/A, PFC-T).
  • Metal case (for T COMP, QTL 1 D FTE, QTL/A 1 ST FT, QTL/A 1 ST FT-RH, QTL 1 ST FTE, QTL 1 SS E, QTL 1 IS FTE, QTL/A 2 ST FT, QTL/A 2 ST FT-RH, QTL/A 3 ST FT, QTL/A 3 ST FT-RH, QML/QTL VFT models).
• Dimensions (HxBxP mm): Vary by model and power. Specific dimensions are tabulated in the official PDF. For example, QM panels are 200x75x76 mm, while larger three-phase panels can be up to 1600x1000x400 mm or 2100x1400x500 mm.

Control features

• Standard components: ON-OFF switch (with lamp/pilot lamp), circuit breaker, thermal device/relay, capacitor, terminal board, cable glands, fuses for power and auxiliary circuits, contactors.
• Electronic control (MPS 3000/4000 boards):
  • Microprocessor-based control for various operating modes (standard, emergency, timed).
  • Dry-running protection via power factor (PF) control (PFC-M, PFC-T), float switch, or level control probes. PF control models do not require level probes in the well.
  • Patented system to stop the pump in case of lack of air cushion in the pressure vessel (for PFC-M, PFC-T, QML/A, QTL/A, QTL/A ST FT models).
  • Displayed operating data and alarms (available in four languages for PFC-M, PFC-T).
  • Control via pressure switch (for pressure booster sets) or float switch (for tank filling).
  • Alarm output signal.
  • Programmable restarts (up to four) in case of no water condition (PFC-M, PFC-T).
  • Automatic operating test for drainage pumps during inactivity (QML/A, QTL/A, QTL/A ST FT-RH models).
  • Pump changing/alternation at every start or after 30 minutes of uninterrupted operation for multi-pump systems (QML/A 2 D, QTL/A 2 D, QML/A 3 D, QTL/A 3 D, QTL/A 2 ST FT, QTL/A 2 ST FT-RH, QTL/A 3 ST FT, QTL/A 3 ST FT-RH).
  • E 1000 LED board for operating signals (QTL 1 D FTE, QTL 1 ST FTE, QTL 1 SS E, QTL 1 IS FTE).
• Alarms (with pump stop):
  • Mains failure
  • Undervoltage and overvoltage
  • Motor overload
  • No water
  • No air cushion in the pressure vessel
  • Phase failure (PFC-T)
  • Wrong phase sequence (PFC-T)
• Setting parameters (for PFC-M, PFC-T):
  • Min – Max voltage range
  • Motor rated current
  • Power factor (PF) value for dry-running protection
• On request features:
  • RA 100 or RA 100A control panel for remote alarm.
  • Volt free contact modules (Q-MSP 9M, Q-MSP 13M, MSP 1M).
  • LVBT card or SRL 3 level control for level probes.
  • Voltmeter.
  • Ammeter.

---

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror