Specifications

Distribution Products Catalog CA08101001E—October 2010 www.eaton.com 39
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16.3
Tr a n s f er Switches
Breaker-Based Designs
Type MBHE Maintenance Bypass Switch
Contents
Description Page
Molded Case Switches—Manual Wallmount. . . . . . . . . . . . 26
Molded Case Switches—Non-Automatic Wallmount. . . . . . 30
Molded Case Switches—Automatic Wallmount . . . . . . . . . 33
Maintenance Bypass Switches—Type MBHE 100–1000A
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Maintenance Bypass Switches—Type MBHE 100–1000A
Product Description
Eaton’s maintenance bypass
switch is a UL 1008-listed
device that provides a simple
and effective means for
bypassing un-interruptible
power supplies while
maintaining continuity of
power to the critical
computer loads. A
maintenance bypass switch
is a requirement on every
UPS installation in order to
accommodate the
maintenance and testing of
the UPS system.
Features and Benefits
●
Make-before-break
electrical operation
●
Lockout circuit to be wired
into the UPS bypass
authorization
●
Pilot devices to show
UPS position “Normal”
and “Bypassed”
●
Pilot device to show
“Lockout” enabled
●
Reliable manually initiated
electrical operation
●
High interrupting ratings
are standard
●
Molded case switch
designs are available
●
Solid neutral connections
are standard
●
Safe and reliable operation
is ensured due to the
simple and durable
switching design
●
Unauthorized bypass is
prevented by the need of
UPS system to send the
bypass authorized signal
●
100% current ratings
makes selection to the
UPS kVA ratings easy to
accomplish
●
Use of interrupting rating
switches makes the
maintenance bypass
switches adaptable to
systems with high levels
of available fault current
Standards and Certifications
●
UL 1008 listing—
File E61639
Wiring Diagram
Single Line Diagram
of Maintenance
Bypass Switch
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