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Выключатели концевые типа ВК

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Выключатели концевые типа ВК

1. Назначение

выключатель концевой ВК-200 ВК-300Выключатели концевые мгновенного действия серии ВК-200, ВК-300 предназначены для срабатывания в электрических цепях управления переменного тока напряжением до 660 В частоты 50-60 Гц, и постоянного тока напряжением до 440 В, под воздействием управляющих упоров (кулачков) в определенных точках пути контролируемого объекта. Выключатели допускают установку в любом положении в местах, не защищенных от попадания пыли и случайного попадания брызг воды или масла, падающих вертикально или под углом к вертикали (для ВК 200) или случайного обливания водой или маслом.

2. Технические характеристики

Основные технические характеристики выключателей ВК 200 (300) приведены в таблице 1.

Таблица 1

Номинальное напряжение, В

постоянный ток

440

переменный ток 50/60 Гц

660

Номинальный ток, А

16

Усилие срабатывания выключателя, Н, не более

80

Усилие отпускания выключателя, Н, не более

2

Рабочий ход привода, градусов

14

Время срабатывания не более, с

0,04

Конструктивное исполнение

Рычаг с роликом

Степень защиты

IP54

Количество и род контактов

1"З" + 1"Р"

Частота включений в час, не более

600

Механическая износостойкость, млн. циклов, не менее

16

Коммутационная износостойкость, не менее, по группам

Б - 1млн. циклов ВО

3. Структура условного обозначения

ВК – ХХХ-ХХ-ХХ-МТ

ВК – условное обозначение серии (выключатель концевой);

ХХХ – 200 – без сальникового ввода, 300 – с сальниковым вводом;

Х – условное обозначение группы коммутационной износостойкости: Б – 10-105 циклов ВО:

Х – вид привода (Р – рычаг с роликом);

ХХ – климатической исполнение и категории размещения по ГОСТ 15050-69;

У – умеренный климат, 2 – категория размещения;

5. Схема электрическая принципиальная

 



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