Wago 4-channel electronic circuit breakers: Program trip characteristics, current monitoring

Wago DIN-rail mount 787-860, 787-861 and 787-862 Electronic Circuit Breakers protect up to four current paths (up to 10 A at 24 V dc max each), with independent programming of channel- or circuit-specific ratings and trip times via free configuration software.


Wago 787-860 Electronic Circuit Breakers

Germantown, WI - Three 4-channel Electronic Circuit Breakers have joined Wago Corp.s 787 Series Power Supply System. DIN-rail mount 787-860, 787-861 and 787-862 Electronic Circuit Breakers each separately protect up to four current paths (up to 10 A at 24 V dc max each), while offering independent programming of appropriate channel- or circuit-specific ratings and trip times via free 759-860 Configuration software, company says.

In the event of a fault or short circuit, the Electronic Circuit Breakers can shut down the tripped channel within 100 ms. Rather than halting the entire system, power is maintained to other loads (such as to a PLC on one path and HMI on another). This prevents a system-wide shut down, as well as possible data loss. Afterward, the tripped load may be remotely reset via a control input.

Through free 759-860 Visualization software (and available RS-232 cable) or on-unit LCD, the 787 Series Electronic Circuit Breakers provide independent channel monitoring of voltage, current, fault diagnostics and energy consumption. Additional Electronic Circuit Breaker features include four current channels with delayed switching-in of channels (250 ms/channel), rugged metal housing, LED status indication, signal outputs and Wago Cage Clamp Spring Pressure Connection Technology for vibration- and maintenance-free terminations.

The 787-861 Electronic Circuit Breaker features an integrated short-circuit current limitation, which avoids overload of upstream power supply units. This guarantees definite shutdown selectivity. The 787-860 and 787-862 do not feature short-circuit current limitation; however, they have adjustable trip times for quicker responses than those of melting fuses or traditional circuit breakers. Both units also allow for current path monitoring (overload or short circuit), as well as power consumption.

Optimized for advanced applications, or widely distributed

The Electronic Circuit Breaker modules are optimized for advanced applications, or those distributed over great distances. The Electronic Circuit Breakers can be used behind primary switch mode power supply units with any overload or short circuit behavior. If output of the power supply unit is divided into several circuit paths, the electronic circuit breaker will protect the circuit paths separately. This makes the Wago Electronic Circuit Breakers ideal for control panels or machines powered by a single, larger power supply, the company says.

Monitoring capabilities are also ideal for applications where events must be logged (such as those in food, medical or process industries), where loads are separated over long distances (process), or if remote access is required (such as those in water/wastewater treatment and petrochemical facilities).

Also read: Wago offers free add-on instructions for Allen-Bradley RS-Logix 5000 .

- Edited by Mark T. Hoske, editor in chief, Control Engineering

More system integration news: www.controleng.com/integration

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Safety for 18 years, warehouse maintenance tips, Ethernet and the IIoT, GAMS 2016 recap
2016 Engineering Leaders Under 40; Future vision: Where is manufacturing headed?; Electrical distribution, redefined
Strategic outsourcing delivers efficiency; Sleeve bearing clearance; Causes of water hammer; Improve air quality; Maintenance safety; GAMS preview
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Safety at every angle, Big Data's impact on operations, bridging the skills gap
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Driving motor efficiency; Preventing arc flash in mission critical facilities; Integrating alternative power and existing electrical systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role of plant safety and offers advice on best practices.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me