Emerson SPMC2402 Controlled Input Rectifier | Unidrive SPM Series, 380-480V AC, 678A DC Output

  Application Scenarios In a large-scale gas processing facility in the Russian Arctic, engineers needed to maintain precise propane pressure for an artificial cooling system driving three 90 kW asynchronous motors. The extreme climate—operating temperatures from -40°C to +50°C—demanded drive components capable of reliable performance without frequent maintenance access. The selected solution employed a Control…

Emerson SPMC2402 Unidrive SPM Controlled Input Rectifier Module — 677A AC, 758A DC Link

  Description The Emerson SPMC2402​ is a controlled input rectifier module in the Unidrive SPM family from Emerson (Control Techniques). Unlike a fixed-diode front end, it uses a dual half-controlled thyristor bridge to convert 380–480 VAC three-phase mains into a regulated DC link for SPMD inverter modules and common-DC-bus drive systems. The SPMC2402​ is the…

Emerson SPMC2402 – SPMU2402 Replacement with Voltage Regulation Capability

  Application Scenarios In a large-scale industrial drive system, multiple motors often need to share a common DC bus to improve energy efficiency and reduce grid impact. A steel rolling mill project using the Unidrive SPM architecture employs the Emerson SPMC2402 as the rectifier front end, converting the plant’s 400V three-phase AC supply into a…

Emerson SPMC2402 Unidrive SPM Rectifier – 380-480V AC Input, 513-648V DC Output, 130kW+

  Description The Emerson SPMC2402​ (also branded Control Techniques) is a controlled input rectifier module in the Unidrive SPM series. It uses a dual half-controlled thyristor bridge to convert three-phase AC mains into a regulated DC link voltage, serving as the front end for SPMD inverter modules or as a standalone DC supply for multiple…

Emerson SP4403 AC Drive – Unidrive SP 75HP Universal Variable Speed Drive for Industrial Automation

  Application Scenarios In a large-scale textile manufacturing facility, production engineers faced a persistent challenge: the winding and unwinding sections of their high-speed spinning lines required precise tension control across a wide speed range, but conventional V/f drives produced inconsistent torque at low speeds, causing yarn breakage and material waste. The Emerson SP4403 addressed this…

Emerson SP4403 Unidrive SP 交流变速驱动器

  Product Overview The Emerson SP4403​ is a high-performance universal AC drive from the renowned Unidrive SP series, manufactured by Emerson (formerly Control Techniques, now part of Nidec). This drive is engineered to deliver precise motor control across a wide spectrum of industrial applications, supporting induction motors, synchronous motors, and servo motors within a single…

Emerson SP4403 Unidrive SP Universal AC Drive – 75 HP Industrial Inverter

  Product Overview The Emerson SP4403 is a high-performance universal AC variable speed drive belonging to the Unidrive SP series, a platform renowned for its flexibility and reliability in demanding industrial motion and motor control applications. The Emerson SP4403 stands out as a truly universal drive, capable of controlling induction motors, servo motors, and permanent…

Emerson Unidrive SP4403 AC Drive 45kW (60HP) — Obsolete / Replacement Spare Part

  Product Overview The Emerson SP4403​ is a universal AC variable-frequency drive from the Unidrive SP series, originally developed by Control Techniques under the Emerson Industrial Automation brand and now part of the Nidec group. The SP4403​ is a frame-size 4 drive rated for three-phase 380–480 V AC supplies, delivering 45 kW (60 HP) nominal…

Emerson SP4403 AC Drive – Unidrive SP Series 75HP Universal Variable Speed Drive

  Product Overview The Emerson SP4403 is a high-performance universal AC variable speed drive from the Unidrive SP series, engineered by Control Techniques to deliver precise motor control across a wide spectrum of industrial applications. The Emerson SP4403 operates with a three-phase input voltage range of 380 to 480 VAC and provides 75 horsepower (approximately…

Emerson DST1405 Digitax ST Series Servo Drive – 380–480V, 8A RMS, 24A Peak, 3-Phase

  Product Overview The DST1405​ is a high-performance servo drive belonging to the Digitax ST series, originally developed by Control Techniques and now part of the Nidec motor control portfolio under the Emerson brand. Engineered for precision motion control, the DST1405​ delivers closed-loop control of AC servo motors in position, speed, and torque modes, making…