MINIATURE CIRCUIT BREAKERS (MCBs)
UL Recognized Supplementar y Pr otectors vs. UL Listed Manual Motor Contr ollers
D4A
277V AC
I
0
277V AC
D 16A
10kA
LISTED
4C87
I
0
10000
1D4.0
1DU16
®
UL Recognized
UL Recognized one pole supplementary protector
UL Listed
UL Listed one pole manual motor controller
General
The UL recognized component mark on the MCB means that the
component alone meets the requirements for a limited, specific use. These
MCBs are not intended for separate installation in the field, they are
intended for use as a component of complete equipment submitted for
investigation to UL.
The UL Listed mark on the MCB is the manufacturer’s representation that
samples of the complete product have been tested by UL to be used for
most common industrial applications. This superior UL mark allows for field
installation without the need for UL investigation.
Classifications
UL 1077
Supplementary protectors for use in electrical equipment
UL 508
Industrial Control Equipment
Manual motor controllers suitable as motor disconnect
Field Installations
None
Must be submitted as component of complete equipment for
investigation to UL
A licensed electrician can install Manual Motor Controllers for the following uses:
• AC Motor Starting (Across the line)
• AC General Use
• AC Resistance
• AC Discharge Lamps (Ballast)
• AC Incandescent Lamps (Tungsten)
Motor Branch Circuit Uses (in accordance with NEC
®
Section 430)
None
• Manual Motor Controller
• Disconnect Means/ Disconnect Switch
• Controller and Overload Protection Combination
• Controller and Disconnect Means Combination
Interchangeability
A UL Recognized supplementary protector
cannot
be used in place of UL
Listed Manual Motor Controller for a specific application
A UL Listed Manual Motor Controller can be used in place of UL Recognized
supplementary protector, where UL allowed to use a supplementary
protector for a specific application.
Altech Corp.
®
• 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
4
ALTECH [ ALTECH CORPORATION ]
