Data sheet
Electronic timer CT-ERD.22
ON-delayed with 2 c/o (SPDT) contacts
The CT-ERD.22 is an electronic time relay with
ON-delay. It is from the CT-D range.
2CDC 251 091 F0006
With their MDRC profile and a width of only
17.5 mm, the CT-D range timers are ideally suited
for installation in distribution panels as well as for
industrial applications where compact dimensions
are required.
Characteristics
–– Rated control supply voltage 24‑48 V DC, 24‑240 V AC
–– Single‑function timer ON‑delay
–– 7 time ranges (0.05 s ‑ 100 h) in one device
–– Light‑grey enclosure in RAL 7035
–– 2 c/o (SPDT) contacts (250 V / 5 A)
–– Width of only 17.5 mm (0.689 in)
–– 2 LEDs for the indication of operational states
Approvals
A UL 508, CAN/CSA C22.2 No.14
EAC
R
E CCC
L
RMRS
Marks
a
CE
b
RCM
Order data
Type
Rated control supply voltage
Time range
Output
Order code
CT-ERD.22
24‑48 V DC, 24‑240 V AC
0.05 s ‑ 100 h
2 c/o (SPDT) contacts
1SVR 500 100 R0100
Functions
Operating controls
1 Rotary switch for the preselection of the time range
2 Potentiometer with direct reading scale for the fine adjustment
of the time delay
3 Indication of operational states
U: green LED
V control supply voltage applied
W timing
R: yellow LED
V output relays energized
4 Circuit diagram
4
1
2CDC 251 091 F0006
3
2
Application
With their structural form and their width of only 17.5 mm, the CT‑D range timers are ideally suited for installation in
distribution panels.
Operating mode
The CT‑ERD.22 has 2 c/o (SPDT) contacts and offers 7 time ranges, from 0.05 s to 100 h. The time delay range is rotary
switch selectable on the front of the unit. The fine adjustment of the time delay is made via an internal potentiometer, with a
direct reading scale, on the front of the unit.
2 - Electronic timer CT-ERD.22 | Data sheet
Function descriptions / diagrams
A ON‑delay
This function requires continuous control supply voltage for timing. Timing begins when control supply voltage is applied.
The green LED flashes during timing. When the selected time delay is complete, the output relays energize and the flashing
green LED turns steady. If control supply voltage is interrupted, the output relays de‑energize and the time delay is reset.
A1-A2
green LED
t
10 % of the min. rated control supply voltage Us
Timing circuit
Kind of timer
Single‑function timer
ON‑delay
Time ranges 0.05 s ‑ 100 h
0.05‑1 s, 0.5‑10 s, 5‑100 s, 0.5‑10 min, 5‑100 min, 0.5‑10 h, 5‑100 h
Recovery time
< 50 ms
Repeat accuracy (constant parameters)
Dt < ± 0.5 %
Accuracy within the rated control supply voltage tolerance
Dt < 0.005 % / V
Accuracy within the temperature range
Dt < 0.06 % / °C
Setting accuracy of time delay
± 10 % of full-scale value
User interface
Indication of operational states
Control supply voltage / timing
U: green LED
V: control supply voltage applied
W: timing
Relay status
R: yellow LED
V: output relays energized
Output circuit
Kind of output
15-16/18
relay, 1st c/o (SPDT) contact
25‑26/28
relay, 2nd c/o (SPDT) contact
Contact material
Cd‑free
Rated operational voltage Ue
250 V
Minimum switching voltage / Minimum switching current
12 V / 100 mA
Maximum switching voltage / Minimum switching current
see load limit curve / see load limit curve
Rated operational current Ie
AC rating (UL 508)
AC-12 (resistive) at 230 V
5A
AC-15 (inductive) at 230 V
3A
DC-12 (resistive) at 24 V
5A
DC-13 (inductive) at 24 V
2A
utilization category
(Control Circuit Rating Code)
max. rated operational voltage
B 300
300 V AC
maximum continuous thermal current at B 300
5A
max. making/breaking apparent power at B 300
3600 VA / 360 VA
Mechanical lifetime
Electrical lifetime
30 x 106 switching cycles
AC-12, 230 V, 4 A
0.1 x 106 switching cycles
Maximum fuse rating to achieve
n/c contact
6 A fast-acting
short-circuit protection
n/o contact
10 A fast-acting
4 - Electronic timer CT-ERD.22 | Data sheet
General data
MTBF
on request
Duty time
100 %
Dimensions (W x H x D)
product dimensions
packaging dimensions
Weight
17.5 x 80 x 58 mm (0.69 x 3.15 x 2.28 in)
89 x 65 x 20 mm (3.50 x 2.56 x 0.79 in)
Nettogewicht
0.068 kg (0.150 lb)
Bruttogewicht
0.081 kg (0.179 lb)
Mounting
DIN rail (IEC/EN 60715), snap‑on mounting without any tool
Mounting position
any
Minimum distance to other units,
normal operation mode
Degree of protection
horizontal
not necessary
vertical
not necessary
housing
IP50
terminals
IP20
Electrical connection
Connecting capacity
fine-strand with wire end ferrule
2 x 0.5‑1.5 mm2 / 1 x 0.5‑2.5 mm2 (2 x 20‑16 AWG / 1 x 20‑14 AWG)
fine-strand without wire end ferrule
2 x 0.5‑1.5 mm2 / 1 x 0.5‑2.5 mm2 (2 x 20‑16 AWG / 1 x 20‑14 AWG)
rigid
2 x 0.5‑1.5 mm2 / 1 x 0.5‑4 mm2 (2 x 20‑16 AWG / 1 x 20‑12 AWG)
Stripping length
7 mm (0.28 in)
Tightening torque
0.5‑0.8 Nm (4.43-7.08 lb.in)
Environmental data
Ambient temperature ranges
operation
storage
-20...+60 °C (-4...+140 °F)
-40...+85 °C (-40...+185 °F)
Climatic class (IEC/EN 60068‑2‑30)
3k3
Relative humidity range
25 % to 85 %
Vibration, sinusoidal (IEC/EN 60068‑2‑6)
20 m/s2, 10 cycles, 10...150...10 Hz
Shock, half‑sine (IEC/EN 60068‑2‑27)
150 m/s2, 11 ms
Isolation data
Rated insulation voltage Ui
input circuit / output circuit
output circuit 1 / output circuit 2
300 V
300 V
Rated impulse withstand voltage Uimp between all isolated circuits
4 kV; 1.2/50 μs
Power‑frequency withstand voltage between all isolated circuits
2.5 kV, 50 Hz, 60 s
(test voltage)
Basic insulation (IEC/EN 61140)
input circuit / output circuit
Protective separation
input circuit / output circuit
(IEC/EN 61140, EN 50178)
300 V
250 V
Pollution degree
3
Overvoltage category
III
Standards / Directives
Standards
IEC/EN 61812‑1
Low Voltage Directive
2014/35/EU
EMC directive
2014/30/EU
RoHS Directive
2011/65/EC
Data sheet | Electronic timer CT-ERD.22 - 5
Electromagnetic compatibility
Interference immunity to
IEC/EN 61000‑6‑2
electrostatic discharge
IEC/EN 61000-4-2
Level 3 (6 kV / 8 kV)
radiated, radio-frequency,
IEC/EN 61000-4-3
Level 3 (10 V/m)
electrical fast transient / burst
IEC/EN 61000-4-4
Level 3 (2 kV / 5 kHz)
surge
IEC/EN 61000-4-5
Level 3 (2 kV L-L)
conducted disturbances, induced by
IEC/EN 61000-4-6
Level 3 (10 V)
electromagnetic field
radio-frequency fields
Interference emission
IEC/EN 61000-6-3
high-frequency radiated
IEC/CISPR 22,
Class B
EN 55022
high-frequency conducted
IEC/CISPR 22,
Class B
EN 55022
Technical diagrams
AC voltage [V]
DC voltage [V]
Load limit curves
AC current [A]
DC load (resistive)
1.0
Switching cycles
Derating factor F
AC load (resistive)
DC current [A]
2CDC 252 121 F0206
resistive load
2CDC 252 122 F0206
resistive load
0.9
0.8
0.7
250 V
resistive load
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Derating factor F for inductive AC load
6 - Electronic timer CT-ERD.22 | Data sheet
0.8
0.9 1.0
cos ϕ
Switching current [A]
Contact lifetime
2CDC 252 123 F0206
0.5
2CDC 252 124 F0206
0.6
Dimensions
in mm and inches
58 2.28“
43,4 1.71“
2CDC 252 130 F0b06
80 3.15“
0.2“
5
45 1.77“
0.69“
17,5
Further documentation
Document title
Document type
Document number
Electronic products and relays
Technical catalogue
2CDC 110 004 C02xx
CT-D range
Instruction manual
1SVC 500 010 M1000
You can find the documentation on the internet at www.abb.com/lowvoltage
-> Automation, control and protection -> Electronic relays and controls -> Electronic timers.
CAD system files
You can find the CAD files for CAD systems at http://abb-control-products.partcommunity.com
-> Low Voltage Products & Systems -> Control Products -> Electronic Relays and Controls.
Data sheet | Electronic timer CT-ERD.22 - 7
Contact us
Document number 2CDC 111 160 D0201 (08.2016)
ABB STOTZ-KONTAKT GmbH
P. O. Box 10 16 80
69006 Heidelberg, Germany
Phone: +49 (0) 6221 7 01-0
Fax: +49 (0) 6221 7 01-13 25
E-mail: info.desto@de.abb.com
You can find the address of your
local sales organisation on the
ABB home page
http://www.abb.com/contacts
-> Low Voltage Products and Systems
Note:
We reserve the right to make technical changes
or modify the contents of this document without
prior notice. With regard to purchase orders, the
agreed particulars shall prevail. ABB AG does
not accept any responsibility whatsoever for
potential errors or possible lack of information in
this document.
We reserve all rights in this document and in
the subject matter and illustrations contained
therein. Any reproduction, disclosure to third
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or in parts – is forbidden without prior written
consent of ABB AG.
Copyright© 2016 ABB
All rights reserved
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