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Maintenance Bypass Switch 60-80kVA | Bottom Entry | 125A Max Current | Voltage-Free Relay by Eaton
This maintenance bypass switch supports 60-80kVA with a bottom entry design and 125A maximum current—ideal for industrial and commercial power management. Built for seamless power transfer with zero transfer time, it ensures uninterrupted operation during maintenance.
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Product Name/Title: Maintenance Bypass Switch 60-80kVA | Bottom Entry | 125A Max Current | Voltage-Free Relay by Eaton
Brand: Eaton
SKU: MBS33SB125BW
Alternatively Known As: Eaton Maintenance Bypass Switch, Eaton MBP Bypass Enclosure, Eaton 3 Phase Bypass Switch, Eaton UPS Bypass Enclosure
Technical Specifications
- Product Name: Eaton Hotswap MBP Maintenance Bypass Enclosure Wraparound Dual Input
- Input nominal voltage: 230V default (220/230/240V)
- Nominal frequency: 50-60 Hz
- Input frequency range: 50Hz-60Hz
- Number of outputs hardwired: 1
- Output nominal voltage: 230V default (220/230/240V)
- Electric current - max: 125A
- Feed type: 2
- Transfer time: 0 ms
- Communication: Voltage-free relay interlock
- Potential free switch contact: Yes
- Altitude: 0-1500m (0° to 40°C), 1500-3000m (0° to 35°C)
- Input voltage range: 192-264 V
- Output frequency: 50-60 Hz
- Output voltage range: 192-264 V
- Phase (input): Three-phase
- Phase (output): Three-phase
- Construction type: Free standing model
- Color: Black
- Type of Accessory: Bypass
- Used with: 93PS, 93E, 93PR, 93PM
- Input connection: Hardwired/fixed connection
- Auto shutdown function: No
- Dimensions (H x L x W): 754mm x 460mm x 708mm
- Weight: 30 kg
Key Features
- Free standing model with bottom entry
- Separate bypass input for maintenance
- Hardwired/fixed input connection
- Voltage-free relay interlock communication
- Potential free switch contact included
- Zero transfer time (0 ms) for seamless power switching
- Supports input and output nominal voltage of 230V (220/230/240V)
- Operates within input voltage range 192-264 V and frequency 50-60 Hz
- Max electric current of 125A
- Suitable for altitudes 0-1500m at 0° to 40°C and 1500-3000m at 0° to 35°C
Professional Installation Requirements
- Professional installation by a qualified electrician is required to ensure compliance with electrical standards and safe operation.
Applications
- Used with Eaton UPS models 93PS, 93E, 93PR, 93PM
- Industrial and commercial power management systems requiring maintenance bypass
- Three-phase electrical systems needing uninterrupted power transfer
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Enables maintenance without power interruption, reducing downtime and energy waste
- Supports efficient power management in three-phase electrical systems
Warranty Information
1 Year standard factory warranty.
Available Now
The Eaton MBS 3Ph/3Ph 60-80kVA Bottom Entry Maintenance Bypass Enclosure is available now for immediate purchase. Ideal for industrial and commercial power management applications requiring reliable maintenance bypass solutions.
