400A-3 Columbus Pneumatic Timer
Product Information
The Columbus Pneumatic Timer 400A-3 is a time delay switch
manufactured by Brook Design Hardware Ltd (BDH) and is part of the
Elkay family of time switches and detectors. This timer is designed
to save energy and increase convenience in residential and
commercial premises.
Features:
- Double contact push button timer
- Ideal for mounting on most standard square boxes with two
mounting lugs - Timing adjustment screw for setting and adjusting the time
delay - Operated by pressing the plunger to make or break the
circuit - Gradual return of the plunger to its normal position during the
time delay - Flashing indication when the switch contacts make or break
Specifications:
- Product Model: 400A-3
- Manufacturer: Brook Design Hardware Ltd (BDH)
- Mounting: Standard square boxes with two mounting lugs
- Timing Adjustment: Clockwise to increase, anti-clockwise to
decrease the time delay - Wiring Regulations: Should be fitted to current IEE wiring
regulations BS 7671
Product Usage Instructions
- MOUNTING:
The 400A-3 timer is ideally suitable for mounting on most
standard square boxes with two mounting lugs. If there are any
additional mounting lugs on a metal box, they must be ground off to
avoid obstructions or short circuits with the unit. Avoid over
tightening the mounting screws to prevent distortion of the switch
cover and locking of the plunger in the ON position. - OPERATION:
The switch is operated by pressing the plunger in to make or
break the circuit. During the time delay, the plunger will
gradually return to its normal position. It is normal to
occasionally see a flash when the switch contacts make or
break. - TIMING ADJUSTMENT:
The time delay is set and adjusted by turning the timing screw
at the back of the unit. Rotate the screw clockwise to increase the
time delay and anti-clockwise to decrease it. Pay close attention
when making adjustments for accuracy. Slight rotation of the timing
screw is needed to set the desired time delay.
Note: All wiring should be carried out by a competent person
or a qualified electrician and must comply with current IEE wiring
regulations BS 7671. The circuit should be isolated before carrying
out any work to avoid accidents. Failure to follow the instructions
will invalidate the warranty.
For further help or information on this and other
products in the Elkay range, visit 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 [email protected]
Elkay (Europe), Milicka 51C, Trzebnica 55-100, Poland
Instruction Guide
COLUMBUS PNEUMATIC TIMER
Time delay switch 400A-3
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
BDH
BROOK DESIGN HARDWARE LTD
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
1. 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.
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 fl 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.
2
INSTRUCTION GUIDE | COLUMBUS PNEUMATIC TIMER TIME DELAY SWITCH 400A-3
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 NC NO
COM – Common NO – Normally Open NC – Normally Closed
COM NC NO
Timing Screw
Diagram 3 Typical Circuit for Staircase Lighting where the Live and Switched Live are at diff erent positions.
Diagram 2 Typical Circuit for Corridor Lighting (i.e. Lights will stay on until the last timer goes off).
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 [email protected]
elkay.co.uk
Elkay (Europe), Milicka 51C, Trzebnica 55-100, Poland
BDH
BROOK DESIGN HARDWARE LTD
Energy Saving Switches and Controls, Light Switch UK | Elkay
Energy Saving Switches and Controls, Light Switch UK | Elkay
