Elkay 400A User guide

BROOK DESIGN HARDWARE LTD

BDH

BDH

BROOK DESIGN
HARDWARE LTD

BDH

BROOK DESIGN
HARDWARE LTD

Instruction Guide

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COLUMBUS
PNEUMATIC TIMER

Time delay switch

400A

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 t - replaces existing lighting control

• For uorescent, incandescent, LED

lighting and electronic doors

• Adjustable time delay from 5 secs to 5mins

• Pneumatic plunger

• No Neutral required

Installation Instructions

Product No. 400A Single 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 ttings max)

• Resistive 6A • Fluorescent 3A (6 ttings max)

• LED 3A • Time Delay 5 sec - 5 min

1. MOUNTING

The 400A 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 o

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.

2. 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  ash when

the switch contacts make or break.

3. 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 S WITC H 40 0A

BROOK DESIGN HARDWARE LTD

BDH

B

BROOK DESIGN
HARDWARE LT

BDH

BROOK DESIGN
HARDWARE LTD

2

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.

Diagram 1

Single contact timers only have

one set of contacts tted.

COM

NC

NO

COM - Common

NO

NC

COM

Timing Screw

Diagram 3

Typical Circuit for Staircase Lighting where the Live
and Switched Live are at dierent positions.

Important Notice

All wiring should be carried out by a competent person or a qualied electrician and
should be tted 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.

NO - Normally Open
NC - Normally Closed

Diagram 2

Typical Circuit for Corridor Lighting
(i.e. Lights will stay on until the last
timer goes o).

Technical Helpline

For fur ther help, or inf ormat ion on

this an d the other product s in the

Elkay range go to w ww.elkay.co.uk
or call [phone] .

Brook House,
Dunmurry Industrial Estate,
Dunmurry,
Belfast BT17 9HU

T [phone]

E [e-mail]

elkay.co.uk

Elkay (Europe) , Milick a 51C, Trzebnica 55-100, Poland

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