The ELHART EPL1 multifunction pump controller is designed to control a group of two or three pumps using dry-contact sensors (for example, pressure switches) and/or NPN sensors.
The EPL1 controller is used in Duty/Standby pump systems with automatic changeover. It can also operate as a symmetrical reversing timer for forward and reverse rotation of mixers, fans, conveyor drives, and other actuators.
| Parameter | Value |
|---|---|
| Power supply | |
| Supply voltage | 190…240 VAC / 50 Hz (Nominal: 220 VAC / 50 Hz) |
| Power consumption | 3 W |
| Input channels | |
| Number of inputs | 4 |
| Input type |
dry contact, NPN sensor (with external power supply) |
| NPN sensor supply voltage | max 30 VDC |
| Output channels | |
| Number of outputs | 3 |
| Output type | EM relay (NO) |
| Max switching current and voltage | 5 A at 250 VAC 3 A at 30 VDC |
| Max total output current | 8 A |
| General | |
| Indication | 3-digit 7-segment LED display 7 status LEDs |
| Operating algorithms |
1 — alternation of two pumps, 1+1 (automatic changeover and alarm) 2 — alternation of two pumps, 1+1 (automatic changeover and make-up) 3 — alternation of three pumps, 2+1 (automatic changeover and per-pump fault monitoring) 4 — alternation of three pumps with automatic changeover and pump enable |
| Environmental conditions | |
| Operating and storage temperature | -20…+50 °C |
| Relative humidity | 0...80% (without condensation) |
| Housing | |
| Overall dimensions (H×W×D) | 90.2×36.3×57.5 mm |
| Mounting | DIN-rail |
| Ingress Protection | IP20 |
| Insulation category | CATII (double insulation) |
| Conductor cross-section | max 2.5 mm² |
