SERVICE MANUAL
© ISA, s.r.o. 2014-2015. All rights reserved.
We reserve the right to change the specification without prior notification.
Always check for new version of this document@
Service manual V1.08 | Nov-2015 | LM0002-EN
Page 30 of 97
In addition, these two outputs can be safely switched from swimming pool via build in pneumatic switches
or with any pushbutton connected to “SWITCH AUX 1 & 2” inputs. Details in 3.7.4
3.7.2
Electrical connection
3.7.2.1
Motor circuit-breaker TeSys GV2
In LVLØ built in Motor circuit-breaker from Schneider-Electric - TeSys GV2 provide thermal magnetic motor
protection. Breakers are built in LVLØ and fulfill motor control and protection regulations in accordance
with IEC 947-2 and IEC 947-4-1 standard.
The addition of an under voltage trip enables the motor circuit-breaker to be
tripped if voltage is lost.
Thermal magnetic circuit breakers incorporate both techniques with the
electromagnet responding instantaneously to large surges in current (short
circuits) and the bimetallic strip responding to less extreme but longer-term
over-current conditions. The thermal portion of the circuit breaker provides
an “inverse time” response feature, which trips the circuit breaker sooner for
larger overcurrent but allows smaller overloads to persist for a longer time.
On very large over-currents during a short-circuit, the magnetic element trips
the circuit breaker with no intentional additional delay.
Breaking capacity is 100kA at 230/240/400/415 V AC 50/60 Hz. Rated service short-circuit breaking capacity
(Ics) is 100 % at 230/240/400/415 V AC 50/60 Hz conforming to IEC 60947-2.
IMPORTANT:
Thermal Adjustment. Motor circuit-breaker TeSys GV2 has a wide
thermal adjustment range. The rated current 'Ir' is continuously
adjustable from ~60% to 100% of its nominal current 'In'.
Please check vendor specification of device connected to LVLØ and adjust
rated current of the motor circuit-breaker (see picture) for Filtration,
AUX1 and AUX2 output.
3.7.2.2
3Pole Contactor iCT
iACT Schneider-Electric contactor used in LVLØ is electrically controlled switch
used for direct switching of power circuit. Contactors used are compliant with
EN 61095 and CEI 1095 standards.
Unlike general-purpose relays, contactors in LVLØ are designed to be directly
connected to high-current load devices connected to AUX 1 and AUX 2
connector. Continuous safety for operators by unqualified personnel is
allowed because of Class-2 insulation. Contactors in provide state indication,
interference filtering and dual control – manual and remote.
Electrical endurance of used iACT contactors is 100,000 cycles (O-C).
