Softstarter, PCS 251A, 600V, 100..240VAC Control
PCS Series to 400 HP
Overview
The PCS Softstarter Controller is one of Sprecher + Schuh's newest
solid-state controllers, with rich features at an economical price.
This softstarter is specifically designed to start 3-phase motors (up to
400HP@460V / 500HP@575V), but is very compact, easy to use and
DIN-rail mountable for models up to 85A. Four standard starting modes
are available with the PCS Controller:
- Soft Start
- Soft Start with Selectable Kick-Start
- Current Limit Starting
- Soft Start with Soft Stop
Three Phase or Wye-Delta
All PCS Softstarters are designed to control either a standard
3-phase squirrel-cage induction motor or a wye-delta motor (700HP @
460V/900 HP @ 575V Y-D).
Self-Contained, Ready To Install
In one small package, PCS Controllers offer a built-in overload
relay, a bypass contactor and a microprocessor controller that provides
softstarting for most industrial applications. The standard Soft Start
mode provides a smooth voltage ramp-up to full motor speed, while the
Current Limit Starting mode limits inrush in high inertia applications.
A Soft Stop feature ramps down high friction loads smoothly,
eliminating sudden deceleration in these applications.
For Use Anywhere
PCS Softstarters come in three different frame sizes. The smallest
frame is from 3A...37A, the middle size is from 43A...85A and the
largest frame size is 108A...480A. These units are available from
200V...600V - 50/60 Hz. This assures the devices can be used anywhere
in the world.
Many convenient features
PCS Softstarters are reliable and easy to use. Features include:
- Digital rotary switches for precise settings
- LED indication of faults
- Built-in, programmable electronic overload protection
- Selectable trip current
- Bypass contactors for increased life and heat reduction
- Over temperature protection
- Protection against phase reversal, phase imbalance, and single-phasing
- Short and open load detection
Connect to CA7 Contactors to provide isolation or KT7 Motor Circuit Controllers for branch circuit protection.
