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.

Palazzoli
Engineered by Palazzoli, the 290104EX is a 4-pole, wall-mounting isolator switch fabricated from thermosetting GRP in black RAL 9005 with a 100A rated current and 690V rated operating voltage. This 50-60Hz unit features indirect clamping screw terminals accommodating conductor sections from 6mm² to 35mm², an M40 hole type, an IP66 protection degree, and a 4J shock resistance under IEC 60079-0 for use in zone 2 gas and zones 21-22 dust environments. It maintains a net weight of 3.55KG and a storage temperature range of -50°C to +80°C. Submit the exact part number, quantity, and application requirements to request a quote.
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 Palazzoli references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
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 Palazzoli 290104EX. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.