SBC PCD1 Series - 5.5.2 PCD2.A210, 4 relays with break contacts, with contact protection

Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
5
Input/output (I/O) modules
5-34
Digital output modules, electrically isolated
5.5.2 PCD2.A210, 4 relays with break contacts, with contact protection
Application
The module contains 4 relays with normally-closed contacts for direct or alternating
current up to 2 A, 250 VAC. The contacts are protected by a varistor. The module is
especially suited wherever perfectly isolated AC switching circuits with infrequent
switching have to be controlled.
Technical data
Number of outputs: 4, electrically isolated break contacts
Type of relay (typical): RE 014024, SCHRACK
Switching capacity:
(contact lifetime)
2 A, 250 VAC AC1 0.7 × 10
6
operations
1 A, 250 VAC AC11 1.0 × 10
6
operations
2 A, 50 VDC DC11 0.3 × 10
6
operations
3)
1 A, 24 VDC DC11 0.1 × 10
6
operations
1)3)
Relay coil supply:
2)
nominal 24 VDC smoothed or pulsed,
9 mA per relay coil
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
Output delay: typically 5 ms at 24 VDC
Resistance to interference:
acc. 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
typically 10 mA
Internal current consumption:
(from V+ bus)
0 mA
External current consumption: max. 32 mA
Terminals: Pluggable 10-pole screw terminal block
(4 405 4847 0), for wires up to 1.5 mm²
1)
With external protective diode
2)
With reverse voltage protection
3)
These ratings are not UL-listed
In the appendix, Chapter A.4 relay contacts, are calculation data and wiring suggestions
for the relay contacts. These data should be absolutely considered for safe switching and a
long life span of the relays.