Motor Controllers
Product Overview
Complete smart motor starter for three-phase motors. Pre-assembled with three-phase contactor, overload relay, and MX-3P IoT module — motor terminals wire directly to the output.
Section: Starter 3-Phase
What is the Starter 3-Phase?
The HPzenAi Starter 3-Phase (SP-3P) is a complete smart motor starter assembly for three-phase 415V AC motors. It combines a three-phase contactor, thermal overload relay, and built-in MX-3P IoT module in a single pre-wired DIN rail assembly. The motor terminals (U, V, W) wire directly to the SP-3P output — no separate starter components are required. Remote control, scheduling, phase-loss protection, and dry-run protection are all built in and managed through the HPzenAi app.
Highlights
- Complete 3-Phase Assembly: Contactor, overload relay, and MX-3P IoT module pre-wired — wire in R/S/T supply and U/V/W motor cables and the unit is ready
- Phase-Loss Protection: Built-in phase monitoring stops the motor if any of the three supply phases is lost — prevents motor burn-out from single-phasing
- Thermal Overload Protection: Integrated thermal overload relay with adjustable FLA dial — set to motor nameplate current for full hardware overcurrent protection
- Remote Control & Scheduling: Remote start/stop, scheduling, level-sensor automation, and fault alerts via HPzenAi gateway and app
Product Specifications
| Attribute | Detail |
|---|---|
| Assembly Type | Complete motor starter — 3-phase contactor + overload relay + MX-3P IoT module |
| Motor Phase | Three-phase, 415V AC |
| Supply Input | R, S, T (three-phase supply from MCB or switch-disconnector) |
| Motor Output | U, V, W (direct to motor terminals) |
| Contactor Rating | See Available Models below — 9A to 65A depending on model |
| Overload Relay | Thermal overload relay with adjustable FLA dial — set to motor nameplate current |
| Phase-Loss Detection | Built-in MX-3P phase monitoring — trips on loss of any phase |
| IoT Module | Built-in MX-3P — RS485 Modbus RTU, 12V DC control supply |
| Gateway Compatibility | HPzenAi GW-W1 (Wi-Fi) · GW-XR1 (SIM/RF) |
| Status Indicator | Multi-colour LED: green (running), amber (fault), red (phase loss), blue (pairing) |
| Mounting | 35 mm DIN rail |
Applications & Use Cases
| Application | Description |
|---|---|
| New 3-Phase Motor Control Panels | Primary smart motor control assembly for new three-phase motor control panels up to 22 kW DOL |
| Three-Phase Borewell Pumps | Complete starter for agricultural and domestic three-phase submersible and surface pump installations |
| Industrial DOL Applications | Fans, conveyors, compressors, and mixers requiring remote start/stop and fault monitoring |
| Level-Controlled Pump Stations | Automatic level-controlled pump operation using HPzenAi LS-PRE sensors and gateway automation |
| OEM Motor Control Panels | Ready-to-mount assembly for panel builders requiring IoT-ready three-phase motor control |
Available Models
Series and Models
SP-3P-9
Starter 3-Phase — 9A (up to 4 kW)
- SP-3P-9: 9A three-phase contactor — up to 4 kW motor; Adjustable overload relay (2.5–9A); 415V AC three-phase supply; Phase-loss detection built in; MX-3P IoT module built in; DIN rail mount
SP-3P-18
Starter 3-Phase — 18A (up to 7.5 kW)
- SP-3P-18: 18A three-phase contactor — up to 7.5 kW motor; Adjustable overload relay (6–18A); 415V AC three-phase supply; Phase-loss detection built in; MX-3P IoT module built in; DIN rail mount
SP-3P-32
Starter 3-Phase — 32A (up to 15 kW)
- SP-3P-32: 32A three-phase contactor — up to 15 kW motor; Adjustable overload relay (10–32A); 415V AC three-phase supply; Phase-loss detection built in; MX-3P IoT module built in; DIN rail mount