Descriere

VA88 MASTER circuit breaker in cast housing is designed to protect electrical networks from short-circuit currents, overload currents, unacceptable voltage reductions, as well as to conduct current in normal mode. Circuit breakers are manufactured in 5 sizes, equipped with a thermomagnetic disconnector for currents from 16 to 800A and an electronic disconnector for currents from 125 to 800A. Operating voltage 400/690 V. The design of the circuit breaker provides for the possibility of independent installation of additional devices on the customer's site.Compact dimensions.
Operating voltage - up to 690 V.
A wide range of optional devices.
Installation in any position (vertical/horizontal).
Compliance with the Directive RoHS 2002/95/EC limiting the content of harmful substances in products.
Fast, reliable shutdown at low currents, actuation of thermomagnetic release at 10In.
Pole configuration.Weight: 5.480
Height: 285.0
Altitude above sea level: < 2000
Depth: 100.0
Setting range over-current release: 10 In
Version: EV005518
Number of auxiliary contacts as normally closed contact: 0
Number of auxiliary contacts as normally open contact: 0
Number of auxiliary contacts as change-over contact: 0
Number of poles: 3
Device construction: EV009212
Mechanical wear resistance: < 4000
Rated surge voltage invariability: 8
Rated voltage: 690
Rated insulation voltage Ui: 800
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz: 35
Rated permanent current Iu: 320
Nominal operating max breaking capacity: 26,25
Nominal rated voltage: 400…690
Nominal rated current: 320
Relative air humidity: 50%
Operation mode: IEK_V0000286
Degree of protection (IP): EV006410
Degree of protection of clamps IP: EV006404
Ambient temperature: -40…60
Connection type main current circuit: EV000415
Type of control element: EV000421
Thermal Release Setpoint: 320
Setpoint of electromagnetic disconnector Im: 10 In
Mains frequency: 50
Width: 150.0
Electric wear resistance: < 2000