Cutler Hammer 2-Pole, 3-Wire, Double Throw Switch, 1PH 400A

Cutler Hammer 2-Pole, 3-Wire, Double Throw Switch, 1PH 400A

The Eaton / Cutler-Hammer DT225URK-NPS Double Throw Safety Switch is a heavy-duty, service-entrance-rated transfer solution built to safely switch power between sources with confidence. Designed as a 400A, 2-pole, 3-wire non-fusible switch, it’s ideal for backup power setups, generator connections, and critical power transfer applications. With its NEMA 3R rainproof enclosure and compact design, it’s built to perform reliably indoors or outdoors—because when it comes to power transfer, reliability isn’t optional.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: DT225URK-NPS
• Brand: Eaton / Cutler-Hammer
• Product Type: Double-throw safety switch (non-fusible)
• Amperage Rating: 400 amps
• Poles / Wires: 2-pole, 3-wire
• Phase: Single-phase (1PH)
• Voltage Rating: 240 VAC / 250 VDC
• Switch Type: Double throw for source transfer (utility/generator)
• Enclosure Rating: NEMA 3R (rainproof, outdoor rated)
• Construction: Painted galvanized steel enclosure
• Neutral: Includes neutral connection
• Design: Compact form factor for easier installation
• Certifications: UL Listed
• Service Rating: Suitable for service entrance applications
• Dimensions: 12.5" D x 23.13" W x 53.81" H
• Weight: 140 lbs
• Warranty: 1 year from installation or 18 months from shipment

Ideal For

• Generator transfer setups in residential, agricultural, or light commercial systems
• Switching between power sources safely and efficiently
• Installations requiring outdoor-rated (NEMA 3R) electrical equipment
• Applications needing high-amperage, non-fusible disconnect capability
• Anyone who wants their power transfer to be smooth, safe, and not involve flipping breakers in the dark during a storm