PERMANENT OVERVOLTAGES
ATCONTROL/R P series protectors actuate when they detect a permanent overvoltage by tripping the connected contactor (normally open) (S1, S2). This contactor disconnects the line, thus protecting any equipment installed downstream. When the permanent overvoltage comes to a halt, the protector reconnects the contactor.
The warning system for permanent overvoltages consists of two luminous indicators: green (correct power supply) and red (overvoltage).It has a test button to check that installation has been executed correctly.
TRANSIENT OVERVOLTAGES
ATCONTROL/R PT protectors also actuate when they detect a transient overvoltage, diverting the current to earth and reducing the voltage to a level that does not damage the connected equipment.
Tested and certified as a type 2 protector in official and independent laboratories according to standards UNE-EN 61643-11 and GUÍA-BT-23 from the REBT. Appropriate for category I, II, III and IV equipment according to REBT (ITC-BT-23).
It has a thermodynamic control device that disconnects from the electrical network in case of deterioration, and also a warning system for transient overvoltages. When the warning is yellow, the protector is in good condition. If not, replace.
INSTALLATION
They must be installed in parallel with the low voltage supply line, downstream from the main circuit breaker, connected to the phase, neutral and ground. The contactor should be installed in series with the low voltage supply line, downstream from the protector. Installation should be carried out without power in the line.
Connect the S1 and S2 terminals to the contactor, always without voltage.
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| Model |
KIT ATCONTROL/R PT-M AT-8756 |
KIT ATCONTROL/R PT-M 63 AT-8757 |
| Nominal current: | 20 A | 63 A |
| Nominal voltage: Un | 230 VAC | |
| Maximum overvoltage: Uc | 400 VAC | |
| Actuation voltage: Ua | 275 VAC | |
| Actuation time: | @275 VAC → 3 - 5 s / @400 VAC → 0.1 - 0.2 s | |
| Type of tests according to UNE- EN 61643-11: | Type 2 | |
| Nominal current (8/20 μs wave):In | 5 kA | |
| Maximum discharge current (8/20 μs wave): Imax | 15 kA | |
| Protection level (wave 1.2/50 µs): Up | 1.1kV | |
| Contactor dimensions: | 18 x 81 x 65 mm (1 module DIN 43880) |
36 x 81 x 65 mm (2 modules DIN 43880) |
| Dimensions: | 36 x 90 x 80 mm (2 modules DIN 43880) | |
| Contactor cable range: | Minimum / Maximum section: 1 / 6 mm2 |
Minimum / Maximum section: 1 / 16 mm2 |
| S1, S2 cable range: | Minimum / Maximum section: 1 / 1.5 mm2 | |
| Protector cable range: | Minimum / Maximum section: 2.5 / 35 mm2 | |
| Tests certified according to standards: UNE-EN 50550, UNE-EN 61643-11 Relevant standards: UNE 21186, NF C 17-102, IEC 62305 |
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