Glandless Pumps - THERMO-ECO-ENGINEERING úvod

Switchgears and Control Devices
Motor Protection
Series description Wilo-SK 602, Wilo-SK 622, Wilo-C-SK
Series
description
Wilo-
SK 602,
Wilo-SK
622, Wilo-
C-SK
Wilo-SK tripping unit 602/622
Wall-mounted unit for electrical connection
of single-phase and three-phase AC
pumps with integrated thermal winding
contacts (WSK) for monitoring the winding
temperature (full motor protection).
Automatic reactivation of pump after power
failure. After being tripped by full motor
protection, the motor remains deactivated
until it is manually reset.
>Technical Data
Operating voltage:
SK 602/SK 622 1~230 V, 3~400 V
Frequency:
50 Hz
Max. motor power P 2 : 3kW
Power loss:
4 W
Protection class: IP 31
Max. ambient temp.: +40°C
Weight:
0.25 kg
SK 602
>Device version SK 602
Containing: contactors for full motor protection
tripping, ON/OFF switch, an operation
indicator light, terminals for external
potential-free ON/OFF control and terminal
rail.
SK 622
2 Potential-free contacts
Max. contact rating: 250 V/1 A/
150 VA each
Run signal:
NO contact
Fault signal:
NO contact
>Device version SK 622
As with SK 602, but also with potential-free
contacts for external run and fault messages
and fault light.
>Connecting cables (provided by customer)
Connecting cable between SK and pump
AC (EM): 5 x 1.5 mm 2
Three-phase (DM): 7 x 1.5 mm 2
SK 622
Dimension drawing
130
108
Ø 4
10
84 56
Dimensions in mm
Fixing sundries provided by customer
388 Subject to change without prior notice 09/2006 WILO AG