SERIES AT

ITALIANA
RELE
SERIES AT
High Voltage Relays
All-or-Nothing Relays specially designed
for high voltage switching applications,
having one or two changeover contacts
rated 10A - 5KV AC1 - 5KVA. They are
ideally suited for arduous duties where
performance and reliability are at premium
being capable of switching very high
voltages. Featuring an open chassis
design and 0.25” Faston terminals
(6.3x0.8mm) secured to a ceramic base,
to suit even extreme safety specifications.
Meeting IEC-UL-CSA standards
SPECIFICATION
DIELECTRIC STRENGTH
8000 V RMS
Coil / contacts :
8000 V RMS
Between adjacent contacts
8000 V RMS
Between open contacts
2000 V RMS
Coil / ground
COIL RATINGS
Power supply :
6-12-24-48-110-230-400 VAC (50-60Hz)
6-12-24-48-60-110-220 VDC
Rated power consumption :
11VA (50Hz) 8VA (60Hz) 5.5W (DC)
Operating range:
AC = -15% to +10% of nominal voltage
DC = -20% to +10% of nominal voltage
Minimum hold voltage:60-80%Vn (DC-AC)
Must Release voltage: 5-15%Vn (DC-AC)
Thermic insulation class of winding
(IEC 317) : F (155°C)
Min. insulation resistance
Pollution degree / insulation voltage
Environmental protection
Enclosure classification
Type of duty
Mechanical life expectancy
Max operating frequency (no load)
Max operating frequency (rated load)
Electrical life expectancy
Max operating time @ Vn
Max releasing time @ Vn
Surrounding operating temperature
Storage temperature
Vibration resistance (10-100Hz)
Shock resistance
Overvoltage category
Impulse withstand voltage
Minimum mounting distance
Mounting position
Overall dimensions
Weight (approx)
3x106 MΩ @ 500VDC (all circuits)
3 / 500 VAC (EN 61810-1)
RT 0 - open chassis (EN 61810-1)
IP00 (EN 60529)
continuous
5x106 operations
3600 cycles / hour
600 cycles / hour
100.000 operations
< 40 milliseconds
< 20 milliseconds
-40 to +55°C
-40 to +70°C
12 g (NO) / 5 g (NC)
9 g (11 ms)
III
8 KV
15 mm
any
60x48x70 mm
200 grams
CONTACT RATINGS
Power rating (AC1):
5 KVA
Rated Current (“Resistance only”): 10A
Max instantaneous current(1):
20A
Max switched voltage:
5000 AC
Min switched load: 1W (10V/10mA min)
Switching power (DC1) (2):
1A-500V
Contact gap :
> 5 mm
Initial contact resistance :
< 100 mΩ
2
Contact material :
Ag-SnO
(1)
(2)
Max time = 0.5” – ED = 0.1
L/R = 0 ms – Arc duration < 5 ms
AVAILABLE TYPES
AT1-L - Single pole Normally Open,
double break.
AT1-R - Single pole Normally Closed,
double break.
AT1-A - Single pole NO+NC, double
break.
AT2-L - Double pole Normally Open
AT2-R - Double pole Normally Closed
APPROVALS
AT2-S - Double pole Changeover
UL 508 – Industrial Control Equipment
C22.2 No.14 Canadian Standard
ORDERING IMFORMATION
4 - Coil voltage : AC or DC
1 - Relay Series : AT
5 – Connection option:
2 - Number of poles :
nil = 0.25” Faston terminals
1 = single pole
(6.3x0.8mm)
4
5
2 = double pole
AD = Faston+Din rail flange
3 - Contact type :
A = NO+NC L = NO
R = NC
S = CO
I T A L I A N A R E L E' S r l. - Via dei Bravi, 40 I-20032 CORMANO - Italy
Tel (+39) 02 6140851- Fax (+39) 02 6140339 - E-mail: [email protected] - www.rele.it
AT2 - S - 24DC - AD
1 2
3