Elkay 400A-3 Columbus Pneumatic Timer Installation Guide

: June 12, 2024
: ELKAY

Table of Contents

400A-3 Columbus Pneumatic Timer
MOUNTING
OPERATION
TIMING ADJUSTMENT
Documents / Resources

Instruction Guide
COLUMBUS PNEUMATIC TIMER
Time delay switch
400A-3

400A-3 Columbus Pneumatic Timer

The Columbus Pneumatic Timer is part of the Elkay family of time switches and detectors which save energy and increase convenience in and around your home or business premises.

FEATURES

Saves costs and energy
Easy to fit – replaces existing lighting control
For fluorescent, incandescent, LED lighting and electronic doors
Adjustable time delay from 5 secs to 5mins
Pneumatic plunger
No Neutral required

Installation Instructions
Product No. 400A Double contact push button timer

Incandescent 6A (3A) from 0V to 240V a.c.
Suitable for use with a 16mm and 25mm BS back box
Compact Fluorescent 3A (6 fittings max)
Resistive 6A • Fluorescent 3A (6 fittings max)
LED 3A • Time Delay 5 sec – 5 min

MOUNTING

The 400A-3 is ideally suitable for mounting on most standard square boxes with two mounting lugs. Any additional mounting lugs found on a metal box must be ground off in case it causes an obstruction or short circuit with unit. Avoid over tightening the mounting screws as this may cause the switch cover to distort and lock the plunger in the ON position.

OPERATION

The switch is operated by pressing the plunger in to make or break the circuit. The plunger will gradually return to its normal position during the time delay. It is normal to occasionally see a fl ash when the switch contacts make or break.

TIMING ADJUSTMENT

Delay timing is set and adjusted by turning the timing screw at the back of the unit, clockwise to increase and anti-clockwise to decrease the time delay. Close attention must be paid when making adjustment. For accuracy slight rotation of the timing screw is needed when setting the time delay.

INSTRUCTION GUIDE
COLUMBUS PNEUMATIC TIMER TIME DELAY SWITCH 400

Start by turning the timing screw so that it’s level with the top of the screw thread. Make slight adjustments from there, checking the time delay after each adjustment. Sometime this slight adjustment of the timing screw may not result in any changes to the time delay and this is due to the mechanical nature of the timing mechanism. Continue with the adjustment until the desired time delay is reached. Please note due to the mechanical setting, there may be a variation in the time delay from one push to the next. For more accurate timing consider the 400NE Columbus Electronic Timer 5A.

Diagram 1
Single contact timers only have one set of contacts ficontacts fi tted. Double contact timers have two tted. COM – Common
NO – Normally Open
NC – Normally Closed

Diagram 2
Typical Circuit for Corridor Lighting (i.e. Lights will stay on until the last timer goes off). Diagram 3
Typical Circuit for Staircase Lighting where the Live and Switched Live are at diff erent positions. Important Notice
All wiring should be carried out by a competent person or a qualified electrician and should be fitted to current IEE wiring regulations BS 7671. The circuit should be isolated before carrying out any work. Failure to adhere to the instructions will invalidate the warranty.

Technical Helpline
For further help, or information on this and the other products in the Elkay range go to www.elkay.co.uk or call +44 (0)28 9061 6505.

Brook House,
Dunmurry Industrial Estate,Dunmurry,
Belfast BT17 9HU
T +44 (0)28 9061 6505
E info@elkay.co.uk

elkay.co.uk
Elkay (Europe), Milicka 51C, Trzebnica 55-100, Poland BROOK DESIGN
HARDWARE LTD

Documents / Resources

| Elkay 400A-3 Columbus Pneumatic Timer [pdf] Installation Guide
400A-3 Columbus Pneumatic Timer, 400A-3, Columbus Pneumatic Timer, Pneumatic Timer, Timer
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| Elkay 400A-3 Columbus Pneumatic Timer [pdf] Instructions
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