I will sell new (of the current year) and 2012-2015. automatic switches A3744SP, A3744P, A3744CR, A3744SM, A3744M, A3744P and also other climatic ones. The price is indicated by the author. switches for an operating frequency of 50-60 Hz with a manual drive (a set of additional assembly units N2) without VAT. 400Hz machines are about 40% more expensive and the price is on request! A set of additional assembly units No. 2, No. 3, No. 4, etc. with a set of clamps No. 2, No. 4, No. 11, No. 27, etc. You can order and buy an automatic A3744SP stationary switch from us. The A-3744SP machine can be supplied with a manual or electromagnetic drive (remote control). Technical description: Automatic switches A3744, A-3744 for a nominal current of up to 630 A and automatic switches BA3740 for a nominal current of up to 1000 A with semiconductor, with semiconductor electromagnetic releases, thermal and electromagnetic releases. Automatic switches А3741, ВА3741, ВА3743, А3743, ВА3745, ВА3747, А-3743, А3745, А3747- 2x pole are made for constant and alternating (Hz 50, 400) currents. Automatic switches А3744, А3742, ВА3742, ВА3744, ВА3748, А-3744, А-3748 - 3x pole, manufactured for alternating current (Hz 50, 400). Automatic switches are intended for carrying current in normal mode and for protection against overloads of unacceptable duration, short circuits and unacceptable voltage drops, as well as for infrequent, up to 30 times a day, operational disconnection of electric circuits with a nominal voltage of up to 660 V alternating current with a frequency of 50 and 60 Hz and up to 440 V direct current. AC automatic switches can also be used to protect and infrequent direct starts of asynchronous electric motors in the AC-3 application category. Automatic switches are manufactured with semiconductor releases, with semiconductor and electromagnetic maximum releases, with thermal and electromagnetic maximum current releases, only with electromagnetic maximum current releases and without maximum current releases. Automatic switches can be equipped with a zero-voltage release, an independent release, free contacts and an electromagnetic drive. Automatics are produced in a stationary version - front, rear and combined connection and in a retractable version.
Technical characteristics of switches:
1. Nominal current 630A, automatic switches VA3740 for nominal current up to 1000 A
2. The number of poles is 2; 3.
3. Nominal currents of thermal releases 250A, 320A, 400A, 500A, 630A. semiconductor release devices 160A, 250A, 400A, 630A.(//tractor-service.com)
4. The setting for the initial tripping current in the zone of overload currents, a multiple of the nominal current of the thermal release 1.3, the setting for the initial tripping current in the zone of overload currents, a multiple of the nominal current of the semiconductor release 1.3.
5. Settings for the operating current of electromagnetic maximum current releases 1000A, 1150A, 1200A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, 6300A.
6. Nominal working maximum breaking capacity, kA: at a nominal voltage of 380V alternating current 32, at a nominal voltage of 660V alternating current 19, at a nominal voltage of 440V direct current 50.
7. Wear resistance of switches - the total number of cycles of VO 12500, the number of cycles VO under load 8000.
8. Overall dimensions (width x height x depth), 225 x 400 x 160 mm.
9. Weight (stationary version) - 27.0 kg, with electromagnetic drive - 35.0 kg. не более