Description
The ABB KT3VD-M (Manufacturer Part Number: KT3VD-M) is a variable depth handle operating mechanism engineered for use with ABB Tmax T1 through T3 frame molded case circuit breakers. Featuring a robust black handle and a high-performance NEMA 4/4X environmental rating, this mechanism enables secure, external door-mounted manual control over internal circuit breakers while safeguarding against harsh washdown, dust, and corrosive conditions.
Part of ABB’s advanced industrial control accessories lineup, the KT3VD-M provides adjustable-depth linkage and dependable switching performance for demanding commercial, industrial, and outdoor electrical enclosures.
Key Features
- NEMA 4/4X Environmental Protection: Rugged sealing and construction provide superior resistance to water, dust, hose-directed fluid, and corrosion in harsh industrial or outdoor settings.
- Variable Depth Design: Adjustable mechanism accommodates various enclosure depths for flexible, precise panel installations.
- External Door-Mounted Control: Allows operators to safely switch and reset internal breakers from outside the enclosure, minimizing exposure to live components.
- Broad Frame Compatibility: Engineered specifically for seamless integration with ABB Tmax T1, T2, and T3 molded case circuit breakers.
- Durable Black Finish: High-strength, professional-grade construction built to withstand frequent mechanical operation and rigorous environmental demands.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Type / Model | KT3VD-M / Handle Operating Mechanism |
| Brand / Manufacturer | ABB |
| Manufacturer Part Number (MPN) | KT3VD-M |
| Device Type | Variable Depth Rotary Operating Mechanism |
| Handle Color | Black |
| NEMA Rating | NEMA 4 / 4X |
| Compatible Breaker Series | ABB Tmax T1, T2, and T3 Frame Molded Case Circuit Breakers |
| Primary Applications | Industrial control panels, outdoor electrical enclosures, washdown environments, switchgear, and motor control centers |






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