SACE TMAX XT UL/CSA LOW VOLTAGE MOLDED CASE C I RCUI T- BRE AKERS UL4 89 AND CSA C2 2 . 2 STANDARDS
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— Execution and installation
Fixed, plug-in and withdrawable version SACE Tmax XT circuit-breakers are available in the following versions:
• FIXED Fixed circuit-breakers consist of a current-interrupting part connected to the trip unit, to be installed on the back plate of the cubicle or on a DIN-rail;
— Fixed circuit-breaker
• PLUG-IN Plug-in circuit-breakers consist of a fixed part that must be installed on the back plate of the cubicle, and of a moving part, obtained from the fixed circuit-breaker plus the relative kit that converts it from the fixed version into the moving part of the plug-in version;
— Plug-in circuit-breaker
• WITHDRAWABLE Withdrawable circuit-breakers consist of a fixed part that must be installed on the back plate of the cubi- cle equipped with side runners to allow the moving part to be easily racked -in and -out. Such a solution is obtained from the fixed circuit-breaker plus the relative kit that converts it from the fixed version to a withdrawable moving part. To obtain the withdrawable version, a front accessory to be applied to the front of the circuit-breaker must be ordered so as to maintain the IP40 degree of protection over the en- tire disconnection run of the circuit-breaker (except for the XT7). This mandatory accessory is a standard supply for circuit-breakers fitted with accessories in the factory. If the plug-in circuit-breaker is fitted with electrical accessories, the appropriate connectors for discon- nection of the relative auxiliary circuits must also be ordered. For the withdrawable version there are dedi- cated accessories, fitted with connectors, which allow automatic disconnection in the case of racking-out. Starting from the fixed version, the SACE Tmax XT circuit-breakers can be easily converted into plug-in and withdrawable versions by using the relative conversion kits. The moving parts can always be obtained for the required version, fully pre-engineered from the factory, by ordering the fixed circuit-breaker and the conversion kit at the same time.
— Withdrawable circuit-breaker
Version Fixed
Plug-in
Withdrawable
XT1 XT2 XT3 XT4 XT5 XT6 XT7
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XT7 M
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