Dev Electrical Industrial Suppliers

Incepted in the year 2023, “Dev Electrical Industrial Suppliers” is a distinguished wholesaler,Trader offering an enormous consignment of Schneider GV2ME06 MPCB,10A Schneider LRD10 Thermal Overload,Siemens 63A HRC Fuse,L T 50 A Bracket Mount MNX Power Contactor, Green Push Button Switches etc.

Incepted in the year 2023, “Dev Electrical Industrial Suppliers” is a distinguished wholesaler,Trader offering an enormous consignment of Schneider GV2ME06 MPCB,10A Schneider LRD10 Thermal Overload,Siemens 63A HRC Fuse,L T 50 A Bracket Mount MNX Power Contactor, Green Push Button Switches etc.

Product Details:-
The  motor starter protectors are compact motor starter protectors for currents up to 52 A which operate according to the current limiting principle. The devices are used for switching and protecting motors or other loads. They are fitted with instantaneous overcurrent releases and inverse-time delayed overload relay. Motor starter protectors and contactors can be combined to form fuseless starter combinations.
The 3VS13, 3VS16 motor starter protectors are suitable for use in any climate.

Motor Starter Protectors
• for motor protection
– 3VS13: 0.4~25 A
– 3VS16: 6~52 A 
The characteristic curves of these motor starter protectors are specially laid-out for the overload and short-circuit protection of motors.
The inverse-time delayed releases (“a releases”) are adjustable for setting the rated current of the motors to be protected. The instantaneous short-circuit releases (“n releases”) are fixed-set to 12 times the value so as to assure faultless starting of the motors.

Current Limiting is achieved in 3VS as follows
In case of a short circuit, the contacts are opened electrodynamically by the short circuit current. The instantaneous overcurrent release, through the switching mechanism, trips all the three poles of the breaker. A large arc voltage is quickly built up in the arc chamber limiting the short circuit current. Thus ensures faster fault clearing
Ambient temperature compensation upto 55°C hence no derating required upto 55°C.

Safety
• Trip Free Mechanism The breakers have a trip-free mechanism. Even by holding the toggle, tripping operation can not be stopped or blocked once it is started. Thus ensure positive opening in the event of fault.
• Positive ON/OFF indication through toggle switch
• Compact and space saving.

Rated short-circuit breaking capacity 
The table shows the rated ultimate short-circuit breaking capacity Icu and the rated service short-circuit breaking capacity Ics for the 3VS motor starter protectors with respect to rated current In and reated operational voltage Ue.
Infeed is permitted at top or bottom without reduction of rated data. In the short-circuit proof areas, Icu is at least 100 kA. A backup fuse is therefore not necessary.
In the other areas, when the short-circuit current at the installation point exceeds the rated short-circuit breaking capacity given in the table for the motor starter protectors, the motor starter protector must be protected by a backup fuse. See the following table for the maximum reated current for the backup fuse. With a backup fuse according to the table, the maximum short-circuit current is permitted to equal the rated breaking capacity of the backup fuse.

Fuseless construction
In fuseless construction, for the 3VS13 motor starter protectors, the limiter 3VU9 138-2AB00 is connected to the input instead of a backup fuse. This increases the short-circuit breaking capacity at AC 415 V to 50 kA. For other voltages, the values are given in brackets.

Characteristic Curves
The characteristic curves are obtained in the cold state and 3-pole loading.
At operating temperature, the tripping time of the thermal releases drops by about 25 %. With 3-pole loading, the deviation in tripping time for 3 times the current and upwards is ±20 % in accordance with DIN VDE 0165

Characteristic curves for 3VS13
The characteristic curves shown here apply for a 3VS1300- 0MK00 motor starter protector with a rated current of 6 A, a current setting range of 4 to 6 A and a tripping current for the instantaneous overcurrent release of 72 A, at a rated voltage of AC 50 Hz, 400 V.

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