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DMM Switch Disconnector 125A | 3P+N Configuration | IP20 Rated | Surface Mounting by Eaton
DMM switch disconnector with a rated operational current of 125A and three-pole plus neutral (3P+N) configuration—ideal for distribution board installations. Built for industrial applications, it features a vertical screw connection and a mechanical lifespan of 10,000 operations.
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Product Name/Title: DMM Switch Disconnector 125A | 3P+N Configuration | IP20 Rated | Surface Mounting by Eaton
Brand: Eaton
SKU: Y8-1314203
Alternatively Known As: Eaton DMM Switch Disconnector 125A, Eaton 3P+N Switch, Eaton Main Switch 125A, Eaton DMM-125/1-SK Switch
Technical Specifications
- Rated uninterrupted current (Iu): 125 A
- Rated operational current (Ie) at AC-21, 400 V: 125 A
- Rated operational current (Ie) at AC-23A, 400 V: 63 A
- Rated breaking capacity at 400/415 V: 480 A
- Rated breaking capacity at 500 V: 520 A
- Rated breaking capacity at 660/690 V: 352 A
- Rated insulation voltage (Ui): 1000 V
- Rated operational voltage (Ue): 690 V
- Rated impulse withstand voltage (Uimp): 6000 V
- Short-circuit protection rating: 125 A fuse and contacts
- Overvoltage category: III
- Degree of protection (front side): IP20
- Mechanical lifespan: 10,000 operations
- Terminal capacity: 6 - 70 mm² flexible with ferrules
- Tightening torque for screw terminals: 7 Nm
- Ambient operating temperature range: -25 °C to 55 °C
- Mounting method: Surface mounting
- Connection type: Vertical screw connection
- Dimensions (H x L x W): 108mm x 152mm x 132mm
- Weight: 0.9 kg
Key Features
- Rated operational current: 125 A
- Three-pole + Neutral (3P+N) configuration
- Vertical screw connection for main circuit
- Optional Stop Function
- Surface mounting
- Mechanical lifespan of 10,000 operations
- Rated breaking capacity up to 520 A depending on voltage
- Rated insulation voltage of 1000 V
- Degree of protection IP20 on front side
- Suitable for use in pollution degree 3 environments
- Terminal capacity supports 6 - 70 mm² flexible cables with ferrules
Professional Installation Requirements
- Installation must be performed by a qualified electrician to ensure compliance with electrical safety standards and proper integration into the electrical system.
Applications
- Distribution board installation
- Ground mounting
- Main switch and maintenance/service switch applications
Standards & Compliance
- AS/NZS 60950 – Safety of IT and Communication Equipment
Environmental Benefits
- Enables safe disconnection to facilitate maintenance and reduce electrical hazards
- Supports efficient electrical system management reducing energy waste
- Complies with RoHS directive limiting hazardous substances
Warranty Information
Warranty terms as provided by Eaton, typically covering manufacturing defects. Please refer to Eaton's official warranty policy.
Available Now
The Eaton DMM-125/1-SK Switch-disconnector is available for immediate purchase, ideal for electrical distribution board installations and industrial applications requiring reliable main switch isolation.
