Bộ điều khiển độ dẫn điện và màn hình điều khiển Gestra LRR 1-52, LRR 1-53

Inputs

1 volt-free input, 24 V DC, for external command Control OFF, Valve CLOSED, Intermittent blowdown OFF (standby). 1 analogue input for potentiometer 0 – 1000 Ω, 2-wire connection (indication of valve position)

Outputs

2 volt-free changeover contacts,
8 A 250 V AC / 30 V DC cos φ = 1 (continuous blowdown valve).
2 volt-free changeover contacts,
8 A 250 V AC / 30 V DC cos φ = 1, or
1 volt-free changeover contact,
8 A 250 V AC / 30 V DC cos φ = 1, 1 volt-free changeover contact,
8 A 250 V AC / 30 V DC cos φ = 1 (intermittent blowdown valve)

Inductive loads must have interference suppression
(RC combination) as per the manufacturer’s speci cation.

1 analogue output 4-20 mA, max. load 500 ohms (actual value)

Indicators and controls

1 multicolour LED (start-up = amber, power ON = green, communication failure = red)
1 4-pole code switch for con guration.

Housing

Housing material, base: black polycarbonate; front: grey polycarbonate, grey
Conductor size: 1 x 4.0 mm2 solid per wire, or
1 x 2.5 mm2 per stranded wire with sleeve to DIN 46228 or

2 x 1.5 mm2 per stranded wire with sleeve to DIN 46228 (min. ∅ 0.1 mm)
Terminal strips can be removed separately
Housing attachment: Mounting clip on support rail TH 35, EN 60715

Electrical safety

Pollution degree 2 for installation in control cabinet with protection rating IP 54, fully insulated

IP rating

Housing: IP 40 to EN 60529 Terminal strip: IP 20 to EN 60529

Weight

Approx. 0.5 kg

Ambient temperature

when system is switched on 0 … 55 °C in operation –10 … 55 °C

Transport temperature

–20 … +80 °C (< 100 hours), only switch on after a defrosting period of 24 hours.

Storage temperature

–20 … +70 °C, only switch on after a defrosting period of 24 hours.

Relative humidity

max. 95%, non-condensing