Pushbutton Type M-10 RET, REB, RST & RSB0 pages

This information is for guidance only and is
not intended to form the basis for contract.
All dimensions in mm.

Pushbutton
Type M-10 RET, REB, RST & RSB
Publication Number PB187/0112
Application
The M-10 pushbutton is ideal for use in all types of lift, especially in office, retail and apartment applications. The
button legend and wide halo illumination provides a bright, wide-angle view in all lighting conditions, ensuring clear
identification on call acceptance. The M-10 is available in a range of colours.
The M-10 has a number of features to ensure easy installation, thus reducing any on-costs. These include screw-in
connectors and front mounting, so there is no need for studs.
Variants of the M-10 are designed to meet EN81-70, EN81-71, B-44 and AS1735 part 12.
Operation
Operation of the spring return pressel makes contact with the microswitch. The pressel will bottom out on the halo
moulding, protecting the microswitch from abuse. On call acceptance the legend and halo is illuminated with the same
colour until the call has been cancelled. Standard illumination is through long life LEDs at 6V, 12V or 24V.
Installation
The pressel body assembly with surround is mounted from the front and secured in place by the nut provided. The
illumination/switch body is then clipped to the pressel assembly body and installation is complete. Wiring of the product
is direct to the illumination/switch body, which has screw connectors.
M-10 button can be supplied complete in stations or loose. The button is designed to be fitted in a faceplate of
thickness between 1.5mm and 3.0mm with a vertical pitch of 50mm and horizontal pitch of 50mm.
Technical Details
Weightttt
37 grams (approximate)
Moulded inttt
High Grade Polycarbonate (Flame retardant)
Environmental Protectiont IP54
Pressel Plate Materialtt
Brushed Stainless Steel, Mirror Stainless Steel, Brushed Brass, Mirror Brass, Coloured t
ttttt
Anodised Aluminium (black, green, yellow)
LED currentttt
20 mA (typically)
LED colours ttt
choose from: red; green; white; yellow; blue
LED voltagettt
6V, 12V or 24V
Designed to meet the requirements of BS CECC 90400: Pushbutton Switches where relevant, EN81-1/2, EN81-70 and
EN81-71 (category 1 vandal resistance)
Ratings
Electrical rating of Cherry microswitch:t
125V a.c. at 3.0 amps max
tttttt
30V d.c. at 2.0 amps max
Mechanical life:tttt
1,000,000 operations min.
Electrical life of M-20 Pushbutton:tt
1,000,000 operations min.
Contact arrangements:ttt
Single microswitch – changeover 1 C/O
tttttt
Twin microswitch – 2 N/O, 1N/O + 1 N/C, 2 N/C

Dewhurst UK Manufacturing Ltd - Unit 9, Hampton Business Park - Feltham - TW13 6DB - UK
Tel: +44 (0)20 8744 8200 - Fax: +44 (0)20 8744 8299 - Email: info@dewhurst.co.uk - www.dewhurst.co.uk
This information is for guidance only and does not form the basis for contract - Dimensions in mm