|
DESIGN STANDARDS
|
|
Voltage withstand
|
Insulation IEC 255-5.
ANSI/IEEE C37.90.
High voltage impulse (across coils).
|
2.5kV rms. for 1 minute between frame, coil and contact sets. 1.25 kV rms. for 1 minute across normally open contacts.
1.5kV rms. across open outgoing contact pairs.
5kVpeak, 2.5J.
|
|
Insulation Resistance
|
IEC 255-5.
|
>100MW.
|
|
Emission and Immunity
|
Relevant EMC specifications:
EN50081-1 1992 which refers to EN55022 (1987), EN50082-1 1992 which refers to IEC801-2 (1984), IEC 801-3 (1984); IEC 801-4 (1988).
|
|
|
|
Test
Conducted emission.
Radiated emission, electric field.
Radiated immunity, electric field.
Electrostatic discharge.
Electrical fast transients.
|
Conditions
150kHz to 30MHz class B.
30MHz to 1000MHz class B.
27MHz to 500MHz @ 3V/m.
8kV air discharge.
1kV AC lines, 0.5kV DC lines.
|
|
Environmental withstand
|
Temperature
IEC 68-2-1.
IEC 68-2-2.
Humidity to IEC 68-2-3.
|
Storage and transit -45°C to +100°C.
Operating -25°C to +75°C.
For more onerous conditions we recommend our hermetically sealed option.
|
|
|
Enclosure protection
BS EN 60529 1992.
Relay.
Socket.
Vibration
BS 142 1982 Section2.1.
|
IP50.
IP20.
0.5g between10Hz and 300Hz.
1.0g between 4.5 Hz, displacements 25.4mm peak to peak.
|
|
|
Random Vibration
BRB/LU Ltd/ RIA.
Spec. No. 20:1988 (British Rail).
Mechanical durability
Electrical durability
|
10Hz to 150Hz: 0.005g2/Hz (10 hours/axis).
150,000,000 operations.
250,000 operations at rated load.
|
|
CONTACT RATINGS
(Contact type standard solid silver)
|
|
Current
|
Make and carry
continuously
|
Make and carry
for 1s
|
Make and carry
for 0.2s
|
Break
|
|
AC
|
1250VA with maxima of 5A and 300V (440V if contacts in series)
|
3750VA with maxima of 15A and 300V
|
7500VA with maxima of 30A and 300V
|
1250AV with maxima of 5A and 300V
L/R = 40ms
|
|
DC
|
1250W with maxima of 5A and 300V
|
3750W with maxima of 15A and 300V
|
7500W with maxima of 30A and 300V
|
100W (resistive). 30W (inductive L/R = 0.05) maxima of 1A and 300V
|
|
|
Contact resistance
Maximum rate of resistance operation frequency
|
Each contact tested for <25 mW.
Mechanical.
Electrical.
|
25,000 operations per hour.
2,500 operations per hour (under rated load).
|
