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The 

Microwave Timer (3 wire) is part of 

the Elkay family of switches, timers and 

detectors which save energy and increase 

convenience in and around your home, 

garden or premises.

Rating at 240V ac

•  

Time Delay: 2 min - 2 hrs

•  

All general load types 16A - Including

   lighting loads that are LED, Compact 

   Fluorescent, Incandescent and Resistive

•  

Lux level / Daylight adjustment

•  

Sensitivity Adjustment

•  

15 to 30 metres range

Fitting and Operating Instructions

1.

 

Ensure the mains power is switched off before  

any wiring takes place.

2.

 

Fit the back box to the wall for mounting using 

appropriate screws and fixings  

(not supplied).

3.

 

Set the dip switches to the required time  

settings (See diagram 2).

4. Connect the Live In, Live Out (Switch Live) and  

the Neutral into the marked terminals  

(See diagram 1).

5. To adjust lux level, locate lux level adjuster on  

the circuit board where the word LUX is printed. 

Turn anticlockwise for plus (+) and clockwise  

for minus (–).

6. To adjust sensitivity, locate SEN on the opposite 

side of the circuit board turn clockwise for plus 

(+) and anticlockwise for minus (–).

7. Please ensure white faceplate is attached before 

initialisation with holes at the top (See diagram 1).

8. Apply the mains power. Your load will turn on and 

a red light will begin flashing for 2 minutes and 

then will flash rapidly for 1 minute. At the end of 

this 3 minute cycle the load will turn off. The load 

will switch on again once further movements  

are detected.

9. Please note the red LED should be clearly seen 

through the hole in the faceplate. The unit is 

supplied with the default setting of max lux and  

sensitivity levels.

N.B. For flush mounting please ensure that it fits 

into a 35mm backbox.

Corridor / Office Plan A

When using PIRs in long corridors or spaces, there is 

often a need to position them every 6 to 8 metres 

(See diagram 4). This incurs additional cabling, labour 

and connection costs at install. Maintenance costs 

over time are also increased from a PPM perspective 

as there are more devices to check and maintain.

Corridor / Office Plan B

With the Elkay Microwave detector 380A-1 mounted 

on the wall only one device is needed to cover areas 

up to 30 metres with lateral cover provided for up 

to 8 metres which increases overall flexibility 

(See diagram 5). Microwave Detectors reduce cabling, 

connection, labour and future PPM costs simply 

because fewer detectors are needed. They can be 

mounted from 1.2 to 2.5m in height and should 

be wall mounted for best effect. They can also be 

used in hi bay lamps that are PL types or hot 

re-strike luminaires.

 –

MICROWAVE 

TIMER

 

380A-1

    

3 wire

Instruction Guide 

BROOK DESIGN HARDWARE LTD

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BROOK DESIGN 

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BROOK DESIGN 

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