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ALPHA

Product catalog summary

Technical Overview

This document describes the specifications, features, and applications of the ALPHA analogue time switch models QRD and QRS, designed for controlling heating, air conditioning, and industrial machinery preheating.

Product Description

Analogue time switch with daily and weekly programming options.
Models available with or without power reserve (battery backup ≥ 100 hours).
Front dial with movable trippers for easy programming.
Manual control switch with three positions: automatic, off, and permanent on.
Installation options include DIN rail, surface mounting, or built-in.

Technical Specifications

Power Supply: 230 V AC ±10%, 50-60 Hz (other voltages available).
Power Consumption: 0.8 W.
Operating Temperature: -10°C to +50°C.
Storage/Transport Temperature: -20°C to +60°C.
Operating Accuracy: ±1 second per 24 hours at 23°C.
Power Reserve: Models with battery backup provide ≥ 100 hours after 48 hours of continuous connection.
Switching Capacity: 16(4) A / 250 V AC.
Maximum Recommended Loads: Incandescent lamps up to 2000 W; fluorescent, low voltage halogen (12 V AC), halogen (230 V AC), low consumption lamps, and downlights with specified VA/W ratings.
Protection Class: Class II under correct mounting conditions.
Degree of Protection: IP20 according to EN 60529.
Pollution Degree: 2.
Connection Types: Faston 6.3 x 0.8 mm or screw terminals.
Maximum Screw Torque: 2.5 Nm.
Weight: Approximately 190 g.

Programming and Operation

Daily programming with 15-minute and 2-hour intervals for weekly models.
Manual override switch with three positions: automatic, off, and permanent on.
Front dial allows easy setting using movable trippers.

Applications

Control of heating and air conditioning systems in buildings.
Preheating of industrial machinery.
Suitable for various lighting loads including fluorescent, halogen, LED, and incandescent lamps.

Standards and Compliance

Complies with EN 60730-2-7:2010/AC:2011 standards.
Meets directives 2014/30/EU (EMC), 2014/35/EU (LVD), and 2011/65/CE (RoHS).

Additional Information

Sealable cover available for tamper protection.
Subject to technical changes; further details available at www.orbis.es.
Accessories and wiring diagrams are provided for installation support.

Catalog excerpts

Interruptor horario analogico Analogue time switch ALPHA Ficha TecnicaTechnical Data Sheet Descripcion - Esfera frontal de sencilla programacion - Programaciones diarias de 15 minutos y 2 horas en modelo semanal - Disponibles modelos con bateria de reserva (100 h) - Instalacion en carril DIN, superficie o empotrado - Interruptor para el control manual con tres posiciones: automatico, apagado y encendido permanente - Front sphere easy to program by movable trippers - Daily programming of 15 minutes and 2 hours for weekly modules - Models with backup battery available (> 100 h.) - Installation on DIN rail, surface or built in. - Switch for manual control with three positions: automatic, off and permanent on. Sujeto a cambios tecnicos - information adicional en Subject to technical changes - additional information at

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Interruptor horario analogico Analogue time switch ALPHA Cargas maximas recomendadas Maximum recommended load Conexion Dimensiones exteriores Wiring diagram Overall dimensions Accesorios Accessories available Codigo Code: Codigo Code: Codigo Code: Codigo Code: Codigo Code: Codigo Code: Codigo Code Sujeto a cambios tecnicos - information adicional en Subject to technical changes - additional information at Marcado Approvals and marking Directivas de referencia Reference Directives Normas de referencia Reference standards

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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