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GEWISS Motor protection circuit-breakers

In motor control panels and machine feeds, protection devices aren’t optional—they’re essential. Gewiss motor protection circuit breakers, manual motor starters and overload protection devices form the heartbeat of reliable motor installations. Having worked in panel rooms and with variable‑load drives, I know that choosing the right breaker or starter up front saves hours in commissioning and months of service headaches later.

Gewiss Motor Breakers — Dedicated for Motor Feeds

When you’re specifying dedicated motor protection, the category of Gewiss motor breakers covers devices tailored for motor in‑feed rather than general circuit protection. These are designed to handle starting currents, phase‑loss conditions and frequent switching.
Key specs you’ll check:

  • Setting range: 0.1 A up to 32 A in the SMT motor protection circuit‑breaker family.
  • Rated operating voltage: 220 V to 690 V AC
  • Breaking capacity: 100 kA for small motors in some models; 25 kA up to 36 kA for larger devices. 
  • Compact footprint: many models mount on standard DIN‑rails, making retrofit easier.

From field experience: motor installers prefer Gewiss motor breakers when they know the feeder’s behaviour will change—starting inrush, stops/starts under automation logic, intermittent loads. The adjustable thermal and fixed magnetic release gives them the flexibility to match real‑world conditions rather than a generic ambient.

Gewiss Thermal Magnetic Breakers — For High Inrush and General Protection

For applications where starting currents are significant but you still want integrated protection, Gewiss thermal magnetic breakers offer a hybrid solution. These devices combine overload (thermal) and short‑circuit (magnetic) protection in one unit.
Specifically:

  • Time‑delayed thermal element adjusts to the motor’s rated current
  • Magnetic element typically operates at 6–12 × In depending on model (see magnetic regulation in SMT family) 
  • Rated insulation voltage: 690 V AC; rated impulse withstand voltage Uimp 6 kV
    Technicians installing feed panels or multi‑motor racks value this because it reduces component count—just one module handles both conditions.

Gewiss Manual Motor Starters & Motor Protection Switches — Operator Interface and Motor Feed

In many assemblies you’ll also specify Gewiss manual motor starters or motor protection switches for direct motor feed control. These integrate start/stop operator controls, overload adjustment and isolation functionality. They’re often located directly at the motor or inside local control boxes.
From procurement side: you’ll check rated current matching the motor, voltage rating, whether the switch has integral heater/bi‑metal overload and whether front mounted start/stop is required for the user interface.

Gewiss Overload Protection Devices & DIN Rail Motor Breakers — Coordination at the Panel Level

When wiring multiple motors or a large panel, the category of overload protection devices and DIN rail motor breakers becomes relevant. For example:

  • Devices mount directly on DIN rail and integrate motor feed protection with panel architecture
  • Ideal for OEM control panels, automation lines or modular machine assemblies
    From practical design: using DIN rail‑mounted motor breakers simplifies wiring, spares stock, label/layout consistency across panels. Panel builders standardise on Gewiss units so wiring diagrams, footprints and spare parts all align.

Procurement & Wholesale Buying Insights

When buying Gewiss motor protection circuit breakers and modular devices in bulk, consider:

  • Match the motor’s rated current and feeder conditions (starting torque, ambient temperature)
  • Ensure the rated breaking capacity suits available fault levels (e.g., 25 kA, 36 kA) 
  • Select adjustable overload range to accommodate slight motor derating (e.g., 90% rated)
  • Standardisation across feeders: same brand and series reduce spare parts complexity
  • Packaging and MOQ: many pull‑centres order motor starters and breakers in batches to align with panel build runs
  • Stock and lead‑time: delays in a motor feed component can hold the entire machine line—so distributor reliability is key

European Supply & Distribution

Bank of Lamps stocks the full range of Gewiss motor protection circuit breakers, motor starters, thermal magnetic devices, DIN‑rail motor breakers and modular protection gear. Our central warehouse in Latvia serves the UK, Germany, Netherlands, Baltics, France, Spain and Belgium. For B2B clients—panel integrators, automation specialists and industrial contractors—this means dependable stock, flexible bulk quantities and logistics built for project schedules rather than retail pace.