Cut Sheet
PROLINE EXTERNAL COMPONENTS PROLINE DOORs, COvERs aND sIDEs
nVent.com/HOFFMANSUBJECT TO CHANGE WITHOUT NOTICEMODULAR ENCLOSURE SYSTEMS11
Spec-00418 M
ELECTRICAL INTERLOCK
INDUSTRY STANDARDS
UL Component Recognized
CSA Certied
APPLICATION
Provides positive internal safety lockout on electrical enclosures
while the equipment is energized. Catalog numbers AEK115,
AEK230 and AEK460 are used with standard Hoffman door latching
mechanisms. When energized, these interlocks prevent the door
handle from being turned to open the door. The interlock ts either
clockwise or counterclockwise handles in the following enclosures:
1. All two-door Type 4 and 12 enclosures
2. All Type 4X with 3-point latch enclosures
3. Free-stand Type 12 enclosures
4. All single-door Type 12 enclosures with latch kits installed
The above interlocks will t the following enclosures, but
modications are required. Consult the factory for more
information.
1. Two-Door Enclosures for Flange-Mounted Disconnects,
Type 12
2. Heavy Duty Free-Stand Enclosures for Flange-Mounted
Disconnects, Type 12
3. Modular Enclosures for Flange-Mounted Disconnects, Type
12
4. Multi-Door Enclosures, Type 12
The interlocks will also t most Hoffman custom enclosures with
door latching mechanisms similar to the mechanisms used on the
preceding enclosures.
Non-NDH style electrical interlocks will not t Concept Enclosures
or Bulletin A25 and A26 Enclosures. Interlocks are not designed to
be used in place of the standard door or cover latch.
Catalog numbers AEK115NDH, AEK230NDH and AEK460NDH are
designed to be used on some Hoffman enclosures and boxes which
have exterior latching only. When energized, these interlocks will
prevent the enclosure door from being opened. They t on the door
or cover of the following enclosures:
1. One-door Type 4 and 4X enclosures
2. Two-door Type 4 and 4X enclosures
3. One-door Type 12 enclosures
4. Larger sizes of junction boxes
5. Type 1 and large Type 1 enclosures
The above interlocks also t in most Hoffman custom enclosures
and boxes which have doors or covers hinged similar to doors or
covers on the preceding enclosures.
Installation
Interlock mounts on bracket attached to door bar on inside of
enclosure door.
SPECIFICATIONS
• Rugged steel construction and plated nish. Solenoids are rated
for continuous duty and will stand up under heavy industrial use.
• Packaged complete with a solenoid assembly, mounting bracket
and instructions for eld installation.
Door handles and latching mechanisms are not included.
Bulletin: P20DC
Catalog Number
A @ 120 V/60 Hz
Normal/Inrush
A @ 240 V/60 Hz
Normal/Inrush
A @ 480 V/60 Hz
Normal/Inrush
A @ 110 V/50 Hz
Normal/Inrush
A @ 220 V/50 Hz
Normal/Inrush
A @ 440 V/50 Hz
Normal/Inrush
PeK115nDH .100/.63 .120/.69
PeK230nDH .050/.32 .060/.35
PeK460nDH .025/.16 .030/.18