Trade Discount 20%
Wraparound Maintenance Bypass Switch | 40A Max Current | 8kVA Power Rating | Bottom Entry by Eaton
The Wraparound Maintenance Bypass Switch features a 40A maximum current and 8kVA power rating—ideal for industrial and commercial UPS maintenance applications. Built for single-phase electrical systems, it ensures zero transfer time and reliable power management.
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Product Name/Title: Wraparound Maintenance Bypass Switch | 40A Max Current | 8kVA Power Rating | Bottom Entry by Eaton
Brand: Eaton
SKU: MBS11SB40BW
Alternatively Known As: Maintenance Bypass Switch, UPS Bypass Enclosure, Single-phase Bypass Switch, Eaton MBP Wraparound
Technical Specifications
- Input nominal voltage: 230V default (220/230/240V)
- Input voltage range: 192-264 V
- Output nominal voltage: 230V default (220/230/240V)
- Output voltage range: 192-264 V
- Nominal frequency: 50-60 Hz
- Input frequency range: 50Hz-60Hz
- Output frequency: 50-60 Hz
- Electric current - max: 40A
- Feed type: 2
- Transfer time: 0 ms
- Phase (input): Single-phase
- Phase (output): Single-phase
- Input connection: Hardwired/fixed connection
- Communication: Voltage-free relay interlock
- Potential free switch contact: Yes
- Altitude operating range: 0-1500m (0° to 40°C), 1500-3000m (0° to 35°C)
- Dimensions (H x L x W): 492mm x 197mm x 284mm
- Weight: 10 kg
Key Features
- Single-phase input and output
- 40A maximum electric current
- 8kVA power rating
- Bottom entry with 16mm² cable capacity
- Hardwired/fixed input connection
- Voltage-free relay interlock communication
- Potential free switch contact included
- Zero transfer time (0 ms)
- Free standing model construction
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 9155, 91PS, 9SX
- Maintenance bypass for single-phase electrical systems
- Industrial and commercial power management
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 and system reliability
Warranty Information
1 Year standard factory warranty.
Available Now
The Eaton Wraparound MBS Maintenance Bypass Enclosure is available now for immediate purchase. Ideal for industrial and commercial UPS maintenance applications.
