VTT11 Datasheet Definite Time Delay Relay

Manufacturer: ALSTOM

VTT11 definite time delay relay by ALSTOM - Datasheet Preview

Datasheet Details

Part number	VTT11
Manufacturer	ALSTOM
File Size	683.11 KB
Description	Definite Time Delay Relay
Datasheet	VTT11 Datasheet

General Description

A stabilised voltage is applied to a resistance/capacitance circuit.

The potential developed across the capacitor is applied to a transistor switching circuit which, in turn, operates an attracted armature relay when the potential reaches the trigger level.

The time delay is varied by altering the resistance value in the resistance/ capacitance circuit by a potentiometer calibrated in seconds.

Overview

PROTECTION Type VTT 11, 12 Definite Time Delay Relay VTT is a static time delay relay which is particularly suitable for applications requiring large number of operations and consistent accuracy with little or no maintenance over long periods.

It is also commonly used in industrial processes.

Key Features

Consistent accuracy.
Reliability.
Low burden.
Reduced maintenance.
Immunity to transients and surges; withstands 5 kv impulse voltage test.
Relays with heavy-duty magnetic blow-out contacts also available.

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