Saia-Burgess
Controls Ltd.
Hardware Manual for the PCD3 Series│Document 26/789; Version E 5│31.01.2005
Hardware
PCD3.A210
5-32
5
5.3.2 PCD3.A210, 4 relays with “normally closed” contacts, with contact pro-
tection
Application
The module contains 4 relays with normally-closed contacts for direct or alternat-
ing current up to 2 A, 250 VAC. The relay contacts are protected by a varistor. The
module is especially suited wherever perfectly isolated AC switching circuits must be
controlled with infrequent switching
Technical data
Number of outputs per module: 4, electrically isolated NC contacts
Type of relay (typical):
PE O14 024, SCHRACK
Switching rating:
(contact lifetime)
2A, 250 VAC AC1
0,7 x 106 operations
1 A, 250 VAC AC11
1,0 x 106 operations
2 A, 50 VDC DC1
0,3 x 106 operations
3
)
1 A, 24 VDC DC11
0,1 x 106 operations
1
)
3
)
Relay coil supply:
2
)
nominal 24 VDC smoothed or pulsed,
9 mA per relay
Voltage tolerance:
Dependent on
Ambient temperature
20°C: 17.0...35 VDC
30°C: 19.5...35 VDC
40°C: 20.5...32 VDC
50°C: 21.5...30 VDC
Typical output delay:
5 ms at 24 VDC
Resistance to interference:
according to IEC 801-4
4 kV under direct coupling
2 kV under capacitive coupling (whole trunk group)
Internal current consumption:
(from +5 V bus)
1...15 mA
typ. 10 mA
Internal current consumption:
(from V+ bus)
0 mA
External current consumption:
max. 32 mA
Terminal:
Pluggable 10-pole cage clamp terminal (4 405 4957 0) or
pluggable 10-pole screw terminal (4 405 4959 0), both for
wires up to 2.5 mm²
1)
With external protective diode
2)
With reverse voltage protection
3)
These ratings are not UL-listed!
