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Accessories
Insulation accessories
Terminal cover
Interphase barrier
Terminal cover is an insulation accessory used to prevent the direct contact between terminal
strip and power circuit, with protection class of IP40 and mechanical impact protection class of
IK07. The terminal cover has a knock-off hole in the front, for easy connection of different kinds
of cables and copper busbar.
Type:
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Short terminal cover (TCV)
The short terminal cover can be used in:
* All insert type and withdrawable type circuit breakers
* Fixed type circuit breakers with back connection
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Long terminal cover (TCE)
The long short terminal cover is used for front connection of cables or insulation busbars.
Interphase barrier is a safety accessory used for interphase isolation of circuit breaker, to
guarantee the optimized insulation at connections. The partition can be easily installed onto the
circuit breaker body.
Polar distance and circuit breaker dimensions after installing the terminal cover.
Circuit breaker
Ex9M1
Ex9M2
Ex9M3
Ex9M4/5
Polar distance
(mm)
Short terminal cover
30
35
45
65
Long terminal cover 30
35
45
65
Total height
(mm)
Short terminal cover 161
187
286
331
Long terminal cover 248
361
484
517
短端子防护罩L2
长端子防护罩L1
Accessories
Mechanical interlock (MIT)
The mechanical interlock is applicable to Ex9M1-5 circuit breakers. It is installed at the front of the
circuit breaker, to make sure two circuit breakers with same frame size will not make at the same
time. The structure of the interlock is simple and reliable. It is also easy for maintenance and can be
used with a padlock.
Wiring diagram
1# incoming line
2# incoming line
2QF
1QF
Handle locking device (KLK)
Battery box (BAB)
The locking system can lock the circuit breaker at disconnect position.
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The locking system can be equipped with (1-3) padlocks, with diameter of (5-8) mm.
●
The padlocks should be provided by user itself.
Standard type (LCD) controller provides DV 9V power supply for technicians, maintenance personnel
and users to check up, setup and change controller parameters.
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Output voltage: DC 9V
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Duration: 7 hours