Complete kit which includes three-phase protector combined overvoltages and undervoltages, shunt release and main circuit breaker
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ATCONTROL/B PT-T PLUS63 protectors actuate triggering the contact shunt release (S1, S2) whenever it detects a permanent overvoltage. The shunt release causes the disconnection of the Main Circuit Breaker (MCB), protecting the equipments installed downstream.
The warning system for permanent overvoltages consists in 2 luminous indicators: green (correct power supply) and red (overvoltage). It has a test button to check that the installations have been executed correctly.
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KIT ATCONTROL/B PT-T 63 protector also actuates whenever it detects a transient overvoltage driving the current to earth and reducing the voltage to a level that does not damage the connected equipment. Tested and certified as Type 2 protector in official and independent laboratories, according to regulations IEC 61643-11 and GUÍA-BT-23 from REBT. Suitable for Categories I, II, III and IV equipments according to the ITC-BT-23 from REBT.
It is provided with a thermodynamic control device that disconnects from the electrical network in case of degrading and a warning system. When the warning is yellow the enclosure is in good shape. If not, replace.
Installation
They must be installed in parallel with the Low Voltage supply line, downstream from the MCB included on the kit, connected to line, neutral and ground. It has a double connector to facilitate the installation.
Installation should be made without power in the line.
MCB must be installed in series with the Low Voltage line, between the Power Control Breaker (ICP) and the Residual Current Breaker (ID).
Connect the S1 and S2 terminals, always without the power turned off to the shunt release that actuates on the MCB.
Technical Datasheet of KIT ATCONTROL/B PT-T 63
| Reference | AT-8780 |
| Nominal Current | 63A/phase |
| Nominal voltage: Un | 230VAC |
| Maximum overvoltage: Uc | 400VAC |
| Nominal frequency | 50Hz |
| Actuating voltage | 265-280VAC / 195-210VAC |
| Actuating time | @275VAC => 3-5s / @400VAC => 0,1-0,2s @200VAC => 3-5s / @80VAC => 0,1-0,2s |
| Nominal voltage for the shunt release | 110-415VAC / 110-250VDC |
| Maximum short-circuit current | 10 kA |
| Type of tests according to IEC 61643-11 | Type 2 |
| Protection categories according to REBT | I, II, III, IV |
| Nominal discharge current (8/20μs wave): In | 15 kA |
| Maximum discharge current (8/20μs wave): Imax | 40 kA |
| Protection level for In 8/20μs wave: Up (In) | 1,8kV |
| Protection level for 1,2/50μs wave: Up | 1,4kV |
| Response time: tr | < 25ns (L-N) / < 100ns (N-T) |
| Protector dimensions | 72 x 90 x 80mm (4 mod. DIN43880) |
| Dimensions MCB + Shunt release | 88 x 81 x 65mm (5 mod. DIN43880) |
| MCB cable range | Min / Max section 1,5 / 35mm² |
| Coil cable range | Min / Max Section 1,5 / 2,5mm² (single-stranded) or 4mm² (multi-stranded) Minimum wiring section: 4mm² |
| Certified test according to regulations | IEC 61643-11, EN 60898, EN 50550 |
| Relevant standards | UNE 21186, NFC 17102, IEC 62305 |
