Improving Visibility and Performance in Industrial Control Systems
In industrial automation, manufacturing, and process control environments, safety and efficiency depend heavily on how operators interact with control devices. Among these, Push Button Switches play a crucial role—offering direct control over complex machinery. To ensure reliability and clear visual communication, these switches must be both durable and easy to identify during operation.
That’s why combining PB2-SERIES Push Button Switches with EL-SERIES LED Module Pilot Lights creates a high-performance solution for today’s demanding industrial systems.
PB2-SERIES: Engineered for Reliability and Long Life
The PB2-SERIES Push Button Switches (22.5 mm) are built to deliver precision control and durability. Designed in compliance with IS:13947 (Part 5/SEC-1) and IEC:947-5(1) standards, these switches perform reliably in a wide range of industrial applications.
Key Features and Performance
- Thermal current rating: 10 Amps
- Rated insulation voltage (Ui): 600V
- Operating temperature: -29°C to +70°C
- Protection rating: IP65 – Dust and water-resistant
These Push Button Switches offer impressive mechanical and electrical lifespans:
- Mechanical durability: Up to 3 million operations
- Electrical durability: Up to 1 million operations (AC-15 / DC-13 duty)
With self-wiping contacts and modular construction, they ensure easy maintenance and long-lasting performance, even in challenging environments.
Versatile PB2 Push Button Switch Options
The PB2 series includes multiple actuator types and configurations to suit different control needs:
- Standard Push Buttons – Available in flush, projecting, and booted styles.
- Mushroom Head Switches – 40 mm or 60 mm sizes for quick actuation and visibility.
- Emergency Stop (E-Stop) Switches – Press to lock, turn to release designs for safety-critical applications.
- Sign Push Button Switches – Pre-marked with standard labels such as “START”, “STOP”, “REV”, and “FWD”.
Each version is designed for reliability, operator comfort, and intuitive operation.
EL-SERIES LED Module Pilot Lights: Bright, Reliable Indication
While the PB2 series provides the mechanical strength, the EL-SERIES LED Module Pilot Lights bring in visual clarity. These LED indicators are designed for high visibility, long life, and energy efficiency, making them the perfect choice for modern control panels.
Core Features of EL-SERIES
- Bright, diffused illumination with a 160° viewing angle
- Long operational life and low maintenance
- UL 94-V1 rated housing for flame resistance
- Wide voltage tolerance (±20%)
- Energy-efficient with power dissipation as low as 3VA (AC) or 2W (DC)
These pilot lights meet IEC-60947-1 standards and are available in both AC (24V, 110V, 220V) and DC (24V, 110V, 220V) variants.
Color Options
Available in standard indicator colors — Red, Yellow, Amber, Blue, White, Green, and Greenish Yellow — the EL-SERIES offers clear status indication for every control function.
Integrated Excellence: PB2 + EL-SERIES Combination
When PB2 Push Button Switches are paired with EL-SERIES LED Modules, the result is an advanced range of illuminated switches that offer both tactile precision and visual feedback.
Illuminated Push Button Switches
The illuminated versions are identified by the BW prefix (e.g., PB2-BW3).
You can customize them with:
- Color codes: White (1), Green (3), Red (4), Yellow (5), Blue (6)
- Voltage codes: 24V, 110V, or 220V (AC/DC)
These integrated assemblies provide crystal-clear indication, enhancing both safety and user experience on control panels.
Illuminated Selector Switches
Available in 2-position and 3-position versions, illuminated selector switches (prefix BK) provide intuitive control and indication for functions like Manual/Auto or ON/OFF modes.
Flexible Contact Block Configurations
The PB2 contact block system is modular, offering multiple configurations to match your control requirements:
| Suffix | Contact Type |
| 1 | NO |
| 2 | NC |
| 3 | NO + NO |
| 4 | NC + NC |
| 5 | NO + NC |
| A | 2NO + NC |
| B | NO + 2NC |
| C | 2NO + 2NC |
For example, a Projecting Push Button Switch with 2NO + NC configuration is ordered as PCB2-BL()A*.
Protection and Construction
The EL-SERIES modules ensure safety and durability through:
- Front protection: IP65
- Rear protection: IP20
- Dielectric strength: 2.5 KVAC for 1 minute
- Insulation resistance: >500 MΩ
The terminals use M3 captive screws for secure wiring, ensuring electrical stability and safe operation over time.
Special Variants for Advanced Applications
Key Switches
Perfect for controlled access applications, available in 2-position and 3-position configurations — both stay-put and spring-return types.
Twin Push Button Switches
Ideal for compact control panels, combining two buttons (e.g., START/STOP or FORWARD/REVERSE) within one assembly. Illuminated versions enhance clarity even in dim environments.
Pilot Lights and Accessories
Complement your system with PB2-BVO() LED pilot lights, metal brackets, and relay reset actuators—all designed for compatibility and easy installation.
Conclusion: A Smart Investment for Industrial Control
The integration of PB2-SERIES Push Button Switches with EL-SERIES LED Module Pilot Lights offers a modern, high-performance solution for control panels. Together, they deliver:
- High mechanical life (up to 3 million operations)
- IP65 protection for harsh conditions
- Energy-efficient LED indication
- Modular, flexible design for easy customization
By combining these two advanced series, Essen Deinki sets a new benchmark for industrial Push Button Switches — ensuring your control systems are safe, reliable, and built for the future.