World leader in ground-fault protection and electrical safety for over 75 years.


Bender Inc., headquartered in Exton, PA, stands as a market leader for electrical safety products. Bender is proud to be ISO 9001:2015 certified to guarantee the very best quality. With the Bender Group headquarters in Grunberg, Germany, Bender has been producing first-class products with excellent service for nearly every industry for over eight decades. In addition to a solid lineup of protective relays, isolation monitors, resistance grounding systems, and isolation power systems, Bender manufactures integrated solutions for hospitals, mining, manufacturing facilities, marinas, fountains, motion picture and television, automation, chemical industries, engineering, ships, submarines, electric vehicles, railway technology, wind and solar energy, and more. Since the very beginning, Bender has been committed to using innovative technologies to find solutions for your application to guarantee the very best in electrical safety.


Ground-fault detectors for ungrounded systems - Bender's advanced ground fault detection and insulation monitoring devices (IMD) along with fault-location solutions (EDS series) for AC and DC systems detect ground faults before leakage current may even be present. The iso685 ISOMETER series includes advanced network-communication capabilities.

Protection panels - Bender's UL 508A certified protection panels (GFGC, LifeGuard®, MarinaGuard®) are a complete solution for protecting personnel and equipment.

Isolated power systems for healthcare facilities - Hospital isolation panels for patient treatment in healthcare facilities for compliance with standards such as NFPA 99 and CSA Z32. Features a LIM2010 Line Isolation Monitor and dedicated power isolation transformer, as well as options for ground-fault location.

Ground-fault relays for solid and resistance-grounded systems - Bender's RCM, RCMA, and RCMS series relays monitor leakage current in AC (single and three phase) and DC power and control circuits. Available in single-channel and multi-channel options. LifeGuard® and MarinaGuard® integrated panels are ground-fault interrupters (GFI) for a wide variety of applications.

High-resistance grounded (HRG) systems - Neutral grounding resistors (NGR) monitoring with a state-of-the-art NGRM700 or NGRM500integrated in a wide range of solutions (HRG series).

Protective relays - Monitor a multitude of key system values, including voltage, current, phase sequence, ground continuity, and more. Check out our protective relays here.

News

Bender’s Torsten Gruhn Featured in Patch News Article

Patch News, a resource and website for local news stories, featured Torsten Gruhn, Bender’s head of EV, in a recent article. Torsten recently...

Read more

The magazine for electrical safety: MONITOR 1/2021

We would like to present you our jubilee edition of our "MONITOR" magazine.

Read more

The new SmartDetect ISOMETER® iso415R Ground Fault Monitor

Introducing our new SmartDetect iso415R – the compact insulation monitoring device for use in ungrounded systems. It combines easy operation, multiple...

Read more

Exhibitions

Lounge & Learn: The Importance of Monitoring LRG (Low Resistance Grounding) Systems

Low Resistance Grounding (LRG) has several advantages over solidly grounded systems. In a resistance grounded system, ground fault protection is...

Read more

Lounge & Learn: Electrical Safety for Electric Vehicles — Insulation Monitoring Interrupters (IMIs) for EVs

Join us for a webinar as we explore insulation monitoring interrupters (IMIs) for level 3 DC fast chargers. IMIs ensure that insulation barriers don’t...

Read more

Lounge & Learn: Electrical Safety Solutions for Ships & Vessels

On board electrical reliability is a key issue due to the remoteness of vessels and platforms. It is especially critical in maritime environments...

Read more

Contact your local representative


With 14 subsidiaries and over 70 agencies, the Bender Group is at home all over the globe.