Overview
The Telemecanique D1OS1 is a nonfusible disconnect switch from the D10 range, designed for general-duty industrial disconnect applications. Part of Telemecanique’s proven product line (now under Schneider Electric), this switch provides reliable manual disconnection and isolation of electrical circuits in motor control centers, control panels, and distribution enclosures.
Key Features
- Nonfusible design for applications without integral fuse protection
- 30-ampere current rating at 600VAC maximum
- Door-mount configuration for standard panel installation
- Heavy-duty construction for industrial automation and control systems
- NEMA-style rotary handle operation for clear on/off indication
- Proven reliability in manufacturing, utility, and OEM equipment
Technical Specifications
The Telemecanique D1OS1 meets the following electrical and physical requirements for general-duty safety and isolation applications.
Typical Applications
The Telemecanique D1OS1 is suitable for:
- Motor control center (MCC) disconnect applications
- Industrial machinery and process equipment startup/shutdown
- Electrical maintenance and lockout/tagout procedures
- Power distribution in manufacturing plants and automation systems
- Equipment protection requiring manual load isolation
Compatibility & Replacements
Compatible With
- Three-phase motor circuits rated up to 600VAC
- General-purpose control panels and enclosures
- Standard NEMA-style disconnect mounting slots
- Fused and non-fused applications with appropriate external protection
Replaces / Drop-In Replacement For
- D10S1 (primary designation variant)
- Other Telemecanique D10 series switches in non-fused configurations
- Square D disconnect switches of similar amperage and voltage ratings
Works With
- Class H and Class K fuses (when auxiliary fuse kits are added)
- Standard three-phase control circuits
- NEMA 1, 3, 4, 12 enclosure installations
- Motor starters and contactor control systems
