Lighting installations—especially in commercial or industrial contexts—face unique risks: voltage surges from switching loads, lightning transients, ground faults, and ageing wiring. A lighting protection strategy must cover surge arrestors, overvoltage protection, transient suppressors, and proper grounding. Murrelektronik lighting protection components form a coherent solution: from ultra-low-voltage DC lighting modules to full mains SPD modules rated for 400 V AC and above. By choosing one brand across the protection chain, procurement teams ensure compatibility, simplified spares, and consistent documentation.
Surges and overvoltages damage lighting drivers, LEDs and control electronics. Murrelektronik surge protection devices (SPDs) include varistors, RC suppressors and specialised modules. For example, their universal suppressors cover 12-30 V DC circuits with diode/Z-diode technology. For AC lighting mains you’ll find modules rated for 110-400 V AC with varistor stacks and DIN-rail mounting. When specifying, you’ll focus on: clamping voltage, energy absorption (joule rating), mounting method (DIN-rail vs motor terminal box), and environmental class (temperature, humidity, pollution). These parameters decide whether the lighting system survives the next fault or outage.
Transient spikes—often just microseconds—occur when large inductive loads switch on/off or when lightning couples into wiring. A transient voltage suppressor (TVS) responds faster and with higher precision than standard SPDs. Murrelektronik includes TVS devices for valve plugs, control lines and lighting electronics. Since lighting drivers often include sensitive electronics, the correct choice of TVS ensures longer life, fewer driver replacements and better system reliability.
Proper grounding and bonding become critical when installing lighting in industrial or outdoor environments. Murrelektronik grounding systems and lighting protection modules help you create fail-safe grounding points, install isolation barriers and protect against common mode transients. In practice: ensure the lighting SPD module includes a proper ground terminal, low resistance path (<10 mΩ), and short conductor length to panel ground. Failing this leads to residual potential differences and creeping damage.
When engineering a lighting protection system, review:
Common mistake: using a generic SPD for mains but not protecting the 24 V lighting rail—or ignoring the need for TVS at module inputs. The result: drivers fail or lighting flickers when control circuits switch.
Field reports show that installing Murrelektronik suppressor modules near contactors and drivers reduces lighting flicker, driver replacement and unscheduled downtime. Their consistent product families ensure that installation teams, maintenance crews and procurement all speak the same part numbers, reducing errors and simplifying logistics. Dimensions, mounting style and electrical ratings remain stable across years, which means spares remain valid when machines are still in service.
Bank of Lamps is your partner for Murrelektronik lighting protection solutions across Europe: from surge suppressors to full panel protection assemblies. We focus on B2B procurement needs, stock transparency and integration support.