The Schneider Electric Square D CH321NRB is a heavy-duty, 3-phase, 3-pole fusible disconnect switch designed for robust electrical circuit control and protection in demanding industrial environments. This switch is engineered to provide reliable operation and safety, commonly integrated into power distribution panels and machinery control systems where secure isolation of electrical loads is critical.

Technical details

• Series: Square D Heavy Duty
• Configuration: 3-Phase, 3-Pole
• Voltage Rating: 240V AC
• Current Rating: 30 Amperes (A)
• Enclosure Type: NEMA 3R (suitable for outdoor or indoor use where rain, sleet, or snow may be present)
• Interrupting Rating: Verify with manufacturer datasheet for specific interrupting capacity (AIC)
• Fuse Type Compatibility: Designed to accept industry-standard Class H or Class K fuses (verify specific fuse class compatibility with manufacturer documentation)
• Actuator Type: External handle mechanism for safe and convenient operation

Applications & compatibility

This fusible disconnect switch is well-suited for applications requiring reliable power isolation and overload protection, such as in manufacturing plants, processing facilities, and outdoor electrical enclosures. It is commonly found in conjunction with motor control centers, pump stations, and HVAC equipment where a visible means of disconnecting power is mandated for maintenance and safety procedures.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D CH321NRB or contact our technical team for cross-reference assistance with compatible Square D disconnect components.