Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Gewiss
The Gewiss GW20437 is a white, two-pole (1P+N) residual current miniature circuit breaker classified as Type A safety protection within the SYSTEM module range, occupying 2 modules. Built from technopolymer material with an Electrocod of 0131 and HS code 85362010, this component operates at 230 V ac across 50 / 60 Hz with a rated current of 6 A, a 10 mA residual operating current (Idn), a C tripping curve, and a 3 kA breaking capacity in accordance with CEI 23-95 standards. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this protection device.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Gewiss references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Technical library
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Gewiss GW20437. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.