Four pressure switches in one. The E30 MK2 digital pressure switch can be configured to operate as a loss-of-prime switch, pressure guard for high/low protection, single-point snap-action switch, or dual-pump controller — 16 unique functions across 4 operating modes.
E30 MK2
Pump Controllers
Features
- Very simple to program
- Multi-voltage operation
- Displays pressure and set points
- Displays running time
- Powerful 40 A solid-state drive
- Dedicated 16 A alarm relay
- Detachable electrical housing
- 20 bar (290 psi) pressure rating
- Wall mounting kit included
- Accepts 2 remote inputs
- Weatherproof housing
The E30 MK2 Digital Pressure Switch is available in thermoplastic and DR brass construction with a 1/4″ BSPF process connection. The standard model operates from 220–240 V AC or from 24 V AC/DC; a dedicated 12 V DC model is also available.
Select Model
Trade customers should contact sales@kelco.co.nz for account pricing.
Ordering — Available Models
| Model Number | Description |
|---|---|
| E30-MK2 | Standard model — 220–240 V AC or 24 V AC / 24 V DC operation |
| E30-MK2-12 | Low-voltage model — 12 V DC operation only |
Operating Limitations
| Ambient temperature range | 1 °C to 50 °C |
|---|---|
| Liquid temperature range | 1 °C to 60 °C |
| Ingress protection rating | IP64 |
| Maximum operating pressure (static or dynamic) | 20 bar / 290 psi |
| Minimum burst pressure (all models) | > 30 bar / 435 psi |
| Trip pressure range | 0–2000 kPa or 0–290 psi in 1 kPa / 1 psi steps |
| Snap pressure range (Mode 3 only) | 1–2000 kPa or 1–290 psi in 1 kPa / 1 psi steps |
| Snap pressure differential (Mode 3 only) | 7–140 kPa or 1–20 psi in 7 kPa / 1 psi steps |
| Starting pressure range | 0–2000 kPa or 0–290 psi in 1 kPa / 1 psi steps |
| Stopping pressure range | 0–2000 kPa or 0–290 psi in 1 kPa / 1 psi steps |
| Minimum pressure differential (Modes 1 & 2 only) | 1 kPa or 1 psi (practical limit ≈ 7 kPa / 1 psi) |
Electrical Data
| Supply voltage (standard model) | 220–250 V AC or 18–25 V AC/DC (multi-voltage input) |
|---|---|
| Supply voltage (12 V DC model) | 11–14 V DC |
| Maximum motor load (all models) | Single-phase motors up to 2.4 kW max at 240 V AC (P1). 3-phase motors of all sizes via a suitable interposing contactor — no maximum motor size applies. |
| Relay 1 contact rating | 16 A at 240 V AC resistive |
| Relay 2 contact rating | 16 A at 240 V AC resistive |
Dimensions
4 Operating Modes
The E30 MK2 includes 16 unique functions selectable across 4 operating modes — loss-of-prime, pressure guard (high/low), single-point snap-action, and dual-pump control. Different functions are available in different modes; see the printed data sheet PDF below for the full mode × function matrix.
3-Phase Pumping Systems
The E30 MK2 can be used to control either single-phase or 3-phase pumps, provided a 220–240 V AC or 24 V AC supply is available at the installation site. For 3-phase motors the E30 drives an interposing contactor — use the Pump Controller Power Calculator to size the contactor and verify cable rating + voltage drop.
Application Restriction
The E30 MK2 is an industrial control device, specifically designed for use in industrial, agricultural and mining applications. It must never be used for any other application. Installation must be carried out by a qualified pump engineer, and all electrical work by a licensed electrician.
Hazardous Areas
The E30 MK2 is not certified for use in hazardous areas and must not be installed in any area classified as hazardous under AS/NZS 60079.10 (Zone 0, 1, 2, 20, 21 or 22).
Serviceability
The E30 MK2 digital pressure switch is not user serviceable. However, spare parts are available from Kelco Engineering or from your distributor.
