Softstarter with braking function
BL 9028

Softstarters are electronic devices designed to enable 1-phase or 3-phase induction motors to start smoothly. By means of internal current monitoring we realise different protective functions, when stalling the motor or during heavy duty starting. The semiconductors are bridged after softstart by relay contacts. This reduces power dissipation and heating. The device parameters are adjusted using potentiometers. LEDs indicate the status of the device.

Features
. According to IEC/EN 60947-4-2
. 2-phase motor control
. For motors up to 11 kW at 3 AC 400 V
. Separate settings for start and brake time, as well as
starting and braking torque
. No braking contactor necessary
. Function test of brake circuit before softstart
. With automatic standstill detection
. Current monitoring
- to protect the power semiconductors
- for device protection at stalled motor
. Maintenance- and wearfree
. Auxiliary DC 24 V
. Monitors undervoltage and phase sequence
. With input to detect motor temperature via PTC (variant /_1_)
. 3 relay outputs for indicaiton of status and fault with LED-indication
. Width: 112.5 mm

Technical specifications
Auxiliary voltage required: Yes
Signalling output: Yes
Widths: 112,5mm
For three-phase motors, 400 V up to: 15kW
Load voltage up to: 3AC 480V
Extra functions: Temperature monitoring, Mains monitoring
Type: BL  9028


Manufacturer: E. Dold & Söhne GmbH & Co. KG
Type: BL9028.03/010 3AC200-480V UH=DC24V
Art. No.: 0068471