SBC PCD2 Series - PCD3.A210, 4 Relays with Break Contacts, with Contact Protection

Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
6-35
I/O modules PCD3
PCD3.A210
6
6.5.2 PCD3.A210, 4 relays with break contacts, with contact protection
Application
The module contains 4 relays with normally-closed contacts for direct or alter-
nating 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 01 4024, SCHRACK
Switching capacity:
(contact lifetime)
2 A, 250 VAC AC1 0.7 x 10
6
operations
1 A, 250 VAC AC11 1.0 x 10
6
operations
2 A, 50 VDC DC11 0.3 x 10
6
operations
3)
1 A, 24 VDC DC11 0.1 x 10
6
operations
1)3)
Relay coil supply:
2)
nominal 24 VDC smoothed or pulsed,
9 mA per relay coil
Voltage tolerance, dependent on ambi-
ent 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: Plug-in 10-pole spring terminal block (4 405 4954 0) or plug-
gable 10-pole screw terminal block (4 405 4955 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
The Annex, Section A.3 "Relay contacts" contains measurement details and suggested wir-
ingfortherelaycontacts.Forsafeswitchingandalongservicelife,theseguresmustbe
observed.