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 Link Interlock
Link Interlock (ML)
Link interlocks consist of a mechanism
mounted to each MCCB in an adjacently
mounted pair. The link between each
mechanism inhibits the closure of one
MCCB unless the other is in the OFF
position.
Link interlocks can be used on a mixture
of 3 and 4 pole breakers of the same
frame size.
The TemBreak 2 link interlock is an
innovative design breakthrough which
will save space, time and money for
switchboard builders in that:
• Installation is extremely simple.
Link interlocks are field-installable
and only require a
screwdriver to fit.
• Link interlocks replace the accessory
cover on the front of the breaker
• Motor operators and operating handles
are compatible with link interlocks
• The interlock is installed on the front
of the MCCB and does not therefore
interfere with copperwork or cables
• No need to buy factory-built backplates
with MCCBs and interlocks pre-fitted
• An automatic changeover pair
consisting of an interlocked pair
of MCCBs with internal control
accessories and motor operators
can be assembled in a few minutes!
 Wire Interlock
Wire interlocks consist of two mechanisms connected by a cable. The mechanisms are mounted on
two MCCBs located at a distance from each other which is limited by the length and bend radius of
the cable. The mechanisms and cable inhibit the closure of one MCCB unless the other is in the OFF
position. Each mechanism is ordered separately. Cables of 1.0m or 1.5m length are also ordered as
separate items.
Wire interlocks can be used on a mixture of 3 and 4 pole MCCBs of different frame sizes.
This allows potential cost savings by using lower rated MCCBs for the alternative power supply.
MCCBs can be mounted in different switchboard compartment or on different planes.
The TemBreak 2 wire interlock is an
innovative design breakthrough which
will save space, time and money for
switchboard builders in that:
• Installation is extremely simple.
Wire interlocks are field-installable.
• Wire interlocks replace the accessory
cover on the front of the breaker
• Motor operators and operating handles
are compatible with wire interlocks
• Interlocking of MCCBs mounted in
different compartments is possible
• No need to buy factory-built
backplates with MCCBs and
interlocks pre-fitted
• An automatic changeover pair
consisting of an interlocked pair of
MCCBs with internal control
accessories and motor operators can
be assembled in a few minutes!
 Slide Interlock
Slide interlocks are manually operated toggle locking
devices which can be installed between two adjacent
MCCBs. Depending on the position of the slide,
one or other of the MCCBs on either side of a slide
interlock is inhibited from being in the ON position.
Slide interlocks can be used between MCCBs of the
same number of poles and of the same frame size.
Slide interlocks can be installed in the field
and are padlockable in both positions.
 Increased Transfer Switch Controller
Relay Logic
- Timer / Relays controller TLP2 – offers a
simple system of logic control from easy to
obtain NHP components
PLC Logic
- PLC / Relay controller – offers the functions of
a PLC along with load shedding, and building
management system communication options.
- TemLogic2 electronic transfer switch controller.
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