Siemens 3RT29261CB00 Surge Suppressor Size S0

Product Description

The SIEMENS 3RT29261CB00 is a surge suppressor designed as an accessory for Size S0 contactors. It protects control circuits and coil windings from voltage spikes and transient surges generated when inductive loads switch off. This type of suppressor mounts directly to the contactor body and absorbs the energy that would otherwise stress coil insulation, relay contacts, and nearby electronic components. Licensed electricians and industrial maintenance technicians typically install this device as part of a contactor assembly in motor control centers, panel boards, and machine control enclosures.

This suppressor is suited for Size S0 contactor applications in both light commercial and industrial electrical systems. It is used wherever inductive switching transients pose a risk to control wiring or sensitive automation equipment. Common install scenarios include motor starter panels, HVAC equipment control panels, and process control cabinets where contactors cycle frequently and transient suppression is required to maintain reliable circuit operation.

Key Features

• Direct-mount design integrates with Size S0 contactors without additional hardware
• Suppresses inductive voltage transients to protect coil insulation and nearby electronics
• Compact form factor fits within standard enclosure space allocations
• Lightweight at 0.011 pounds, adding minimal mass to the contactor assembly

Compatibility

Designed as an OEM-style accessory for SIEMENS Size S0 contactors. Consult the contactor documentation to confirm suppressor series compatibility before installation.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and applicable local codes. De-energize and lock out the panel or control circuit before attaching or removing the suppressor from the contactor. Snap the suppressor onto the contactor coil terminals as directed by the contactor manufacturer documentation. Do not power the circuit until the suppressor is fully seated and all wiring connections are confirmed secure.

Technical Specifications

• Product Type: Surge Suppressor
• Contactor Size: S0
• Length: 2.205 inches
• Width: 1.220 inches
• Height: 0.512 inches
• Weight: 0.011 pounds
• Pack Quantity: 1
• UPC: 66264392071

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RT29261CB00