Reliance Electric 1AC2002
May 28, 2026

Reliance Electric 1AC2002

The 1AC2002 (often listed as 1AC2002U) is a 2HP (1.5kW) general‑purpose V/Hz AC variable‑speed drive from Reliance Electric’s GP‑1000 / GP‑1200 series (1AC line). It accepts single‑phase 200/230VAC input and delivers three‑phase 200/230VAC output, designed for small induction motors in light‑duty industrial and commercial applications. This model is discontinued, with NOS and refurbished units used as drop‑in replacements for legacy systems.

Description

Product Description

The 1AC2002 (often listed as 1AC2002U) is a 2HP (1.5kW) general‑purpose V/Hz AC variable‑speed drive from Reliance Electric’s GP‑1000 / GP‑1200 series (1AC line). It accepts single‑phase 200/230VAC input and delivers three‑phase 200/230VAC output, designed for small induction motors in light‑duty industrial and commercial applications. This model is discontinued, with NOS and refurbished units used as drop‑in replacements for legacy systems.

Model Number Interpretation

  • 1 – Series: 1AC (GP‑1000/GP‑1200 AC drive)

  • AC – Product type: AC variable‑speed drive

  • 2002 – Voltage/power: 200/230VAC, 2HP standard build

  • (U) – Variant: Universal/standard chassis, UL‑listed

Technical Specifications

  • Input Power: Single‑phase AC, 200/230VAC ±10%, 50/60Hz, max 15A

  • Output Power: Three‑phase AC, 200/230VAC, max 7.5A, 3.0kVA

  • Rating: 2HP (1.5kW) continuous duty

  • Control Mode: V/Hz (Volts‑per‑Hertz) open‑loop control

  • Speed Range: 20:1 (V/Hz), 0–400Hz output frequency

  • Enclosure: NEMA 1 / IP20, indoor use only

  • Protection: Overcurrent, overvoltage, undervoltage, overtemperature, short circuit, ground fault, motor stall prevention

  • Ambient Conditions: 0–45°C, 5–95%RH (non‑condensing)

  • Dimensions: Approximately 254 × 305 × 152mm (H × W × D)

  • Weight: Approximately 7.7kg (17lbs)

Interface and Communication Configuration

  • Power Terminals: L1/L2 (single‑phase AC input), U/V/W (three‑phase motor output), PE (protective earth)

  • Control Terminals: Digital inputs (start/stop, forward/reverse, fault reset); analog input (0–10VDC speed reference); relay output (fault indication)

  • Communication: No standard communication port (analog‑only design); no RS‑232/485 or fieldbus interfaces supported

Core Functions

  1. V/Hz Speed Regulation – Simple, stable open‑loop control for standard induction motors, maintaining consistent speed under varying loads.

  2. Compact 2HP Light‑Duty Design – Small footprint for space‑constrained installations with 2HP motor loads.

  3. Basic Analog Speed Control – Accepts 0–10VDC signal for easy integration with potentiometers, PLCs, or simple control systems.

  4. Integrated Fault Protection – Comprehensive electrical and thermal protection safeguards drive and motor.

  5. Legacy System Replacement – Direct retrofit for older 2HP 230VAC 1AC series drives in small machinery and commercial equipment.

Application Scenarios

  • Small General‑Purpose Machinery: Conveyors, fans, pumps, mixers with 2HP induction motors.

  • Light‑Duty Commercial Equipment: HVAC fans, small compressors, material handling devices.

  • Legacy System Retrofits: Drop‑in replacement for Reliance 1AC series drives in older industrial/commercial facilities.

  • DIY & Hobbyist Projects: Medium‑size variable‑speed applications needing compact, affordable AC drives.

Usage and Maintenance Instructions

  • Installation: Mount vertically in clean, dry, well‑ventilated indoor area; maintain minimum clearance for airflow and cooling.

  • Wiring: Use properly rated copper conductors for power/control circuits; separate power and control wiring to reduce noise; verify all connections before power‑up.

  • Startup: Visually inspect for damage/loose connections; confirm input voltage matches drive rating; start unloaded and gradually apply load while monitoring parameters.

  • Maintenance: Keep enclosure dust‑free; inspect cooling fans/heat sinks; check terminals/wiring for overheating/corrosion; replace worn components as needed.

  • Troubleshooting: Use onboard LEDs/fault indicators to diagnose overcurrent, overtemperature, or stall issues; resolve faults before restarting.


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