Keypads

Keypads are input devices made up of buttons or keys arranged in a grid pattern, each corresponding to a specific number, character, or function. They serve as an intuitive way to input data, control machinery, or authorise access. Commonly used in telecommunication equipment, security panels, industrial machinery, and consumer electronics, keypads remain a reliable interface even in the age of touchscreens.

Membrane keypads and button keypads are frequently found in manufacturing and automation applications, offering tactile or sealed interfaces that resist moisture and dust. From simple numeric layouts to complex multi-function panels, each design supports efficient and durable user operation.

Types of Keypads

Keypads come in a variety of layouts to suit different equipment and user requirements.

• Telephone Keypad: A numeric grid featuring digits 0–9 and symbols *, #. Commonly used in telephones, mobile devices, and access control systems.
• QWERTY Keypad: Resembles a computer keyboard with letters, numbers, and symbols in the QWERTY layout. Ideal for mobile devices, terminals, and portable industrial equipment.
• Calculator Keypad: Designed for numerical and mathematical input, including arithmetic symbols and function keys. Used in calculators, lab instruments, and POS devices.
• ATM Keypad: Durable metal or polymer keypads designed for public use. Includes numeric digits and function keys such as Enter, Cancel, and Clear to support secure financial transactions.
• Control Panel Keypad: Used in industrial control systems and security, featuring both numeric and function buttons for operating, programming, or locking systems.

Key Benefits of Keypads

Whether used in industrial control systems or access panels, keypads offer a range of advantages that make them a reliable choice for data entry and system control.

• Ease of Input: Offers straightforward and familiar operation for data entry or control.
• Speed and Efficiency: Enables rapid input compared with handwriting or touchscreen interfaces.
• Durability: Built to withstand frequent use and harsh industrial conditions.
• Reliability: Provides consistent, tactile feedback that minimises input errors.
• Security: Commonly used in access-controlled environments for PIN entry or secure authentication.

Factors to Consider When Choosing the Right Keypad

Selecting the right keypad depends on its intended application and environmental demands. Consider these key factors before purchase:

• Number of Keys & Layout: Choose the appropriate configuration, from simple 4-key panels to full QWERTY arrays.
• IP / Sealing / Environmental Rating: Ensure resistance to dust, moisture, or chemicals, especially for membrane keypads used outdoors or in industrial settings.
• Material & Construction: Options range from plastic and silicone to stainless-steel finishes for high durability.
• Illumination / Backlight: Useful in low-light areas like control rooms or outdoor kiosks.
• Operating Temperature & Environmental Specs: Confirm the keypad can function within your site’s temperature range.
• Voltage / Electrical Compatibility: Match the keypad’s electrical ratings with your system requirements.
• Mounting Style / Panel Cut-out: Ensure proper fit and secure installation on the device or console.
• Durability / Lifecycle: Check rated keypress cycles to meet expected usage frequency.
• Colour / Actuator Style / Finish: Consider design aesthetics and ease of operation for the user.

Applications of Keypads

Keypads are found in countless electronic and industrial systems, providing control and input functionality across multiple sectors:

• Access Control / Security Panels: Used as security keypads for door locks, alarm systems, and restricted-area entry.
• Industrial Control Systems / Automation Interfaces: Allow operators to enter commands or set parameters safely.
• Vending Machines, Kiosks & ATMs: Provide user input in self-service environments.
• Marine / Outdoor Control Panels: Weather-resistant membrane keypads handle exposure to water and UV light.
• Instrumentation & Equipment Front Panels: Facilitate parameter settings in laboratory and testing equipment.

Find the Right Keypad for Your Application

Discover the ideal keypad for your project with RS NZ, a trusted supplier and distributor of electronic components and control interfaces. Our range includes membrane keypads, button keypads, and security keypads from leading brands such as RS PRO, Apem, and Storm, suitable for everything from access control to industrial automation.

Alongside keypads, RS also supplies complementary components such as tactile switches, keypad switch caps, and more. Enjoy fast nationwide delivery and dependable customer support. For details on shipping times, service areas, and delivery charges, please visit our Delivery Information Page.