1600/1700 Series Delay On Operate Timers
Fixed/Adjustable Timing, Relay Output
Product Facts
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AC/DC input delay on operate
timer offered in fixed (1600)
and adjustable (1700) types
Up to 10A loads
CMOS digital design
Hermetic package
Built to MIL-R-83726
environmentals
Many customizing options
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Extended timing ranges
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Tighter timing tolerances
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Header and mounting
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115Vac, 60 Hz. input types
CII 1600/1700 series delay on
operate timers combine solid
state timing circuits with
electromechanical output
relays in robust hermetically
sealed enclosures. The 1600
types are fixed timers, while the
1700 models are adjustable via
an external resistor. Numerous
output options include 4A rated
contacts in 1-4 form C (SPDT -
4PDT) arrangements and 10A
rated contacts in 1-2 form C
(SPDT-DPDT) arrangements.
Specifications by Model Number – 4 Amp Contact Versions
Fixed Timer
Model Number
1601
1602
1603
1604
1621
1622
1623
1624
1651
1652
1653
1654
1671
1672
1673
1674
Fixed Timer
Model Number
1610
1620
Adjustable Timer
Model Number
1701
1702
1703
1704
1721
1722
1723
1724
1751
1752
1753
1754
1771
1772
1773
1774
Adjustable Timer
Model Number
1710
1720
Input
Voltage
DC
DC
DC
DC
DC
DC
DC
DC
AC
AC
AC
AC
AC
AC
AC
AC
Input
Voltage
DC
DC
Temperature
Range
-55°C to +85°C
-55°C to +85°C
-55°C to +85°C
-55°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +85°C
-55°C to +85°C
-55°C to +85°C
-55°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
Temperature
Range
-55°C to +85°C
-55°C to +85°C
Housing Length
(Dim. “A”)
1.656 [42.06]
1.656 [42.06]
2.0 [50.8]
2.0 [50.8]
1.656 [42.06]
1.656 [42.06]
2.0 [50.8]
2.0 [50.8]
2.0 [50.8]
2.0 [50.8]
2.375 [60.33]
2.375 [60.33]
2.0 [50.8]
2.0 [50.8]
2.375 [60.33]
2.375 [60.33]
Housing Length
(Dim. “A”)
2.419 [61.44]
2.419 [61.44]
Contact
Arrangement
1 Form C (SPDT)
2 Form C (DPDT)
3 Form C (3PDT)
4 Form C (4PDT)
1 Form C (SPDT)
2 Form C (DPDT)
3 Form C (3PDT)
4 Form C (4PDT)
1 Form C (SPDT)
2 Form C (DPDT)
3 Form C (3PDT)
4 Form C (4PDT)
1 Form C (SPDT)
2 Form C (DPDT)
3 Form C (3PDT)
4 Form C (4PDT)
Contact
Arrangement
1 Form C (SPDT)
2 Form C (DPDT)
Electrical Specifications
Timing Range:
1600 series (fixed):
50 ms to 600 s.
1700 series (adjustable):
50 ms to
240 s.
Tolerance:
±10% or 10 ms, whichever
is greater.
Recycle Time:
10 ms (DC input),
50ms (AC input).
Recovery Time:
10 ms (DC input),
50ms (AC input).
Input Voltage:
18 to 31Vdc,
105 to 125Vac, 400 Hz.
Current Drain (at 25°C, 28Vdc):
DC Coil, 10A contacts:
1- and 2-pole:
135mA maximum.
AC or DC Coil, 4A contacts:
1-pole:
100mA maximum.
2-pole:
150mA maximum.
3- and 4-pole:
200mA maximum.
Contact Ratings:
DC Coil, 10A contacts:
10A resistive @ 30Vdc.
5A inductive @ 30Vdc.
5A resistive @ 115 Vrms, 400 Hz
3A inductive @ 115 Vrms, 400 Hz
AC or DC Coil, 4A contacts:
4A resistive @ 30Vdc.
1A inductive @ 30Vdc.
2A resistive @ 115 Vrms, 400 Hz
1A inductive @ 115 Vrms, 400 Hz
Specifications by Model Number – 10 Amp Contact Versions
Adjustable Timing Formula
(1700 types)
The resistance required to obtain timing
within this range is determined by using
the formula:
Rx = 400K (T/Tmax.) – 40K, where
Rx = External Resistance in Ohms,
T - Desired Time in Seconds, and
Tmax. = Maximum Time (Code).
A high quality deposited carbon ±1%,
0.1W (min.) resistor is recommended for
external resistance.
Part Numbering System
Typical Part Number
1722
–C
– 1102
Model Number:
Four digit code from table above.
Mounting (see outline dimension drawings):
A = Studs on bottom B = Studs on top C = Studs on side
Timing Code:
Four-digit code for any value between 50ms and 600s for fixed (1600) timers, and
50ms and 240s for adjustable (1700) timers.
The timing code consists of four digits and gives the time in ms. The first three digits
are the significant figures and the last digit is the number of zeros following the
significant figures; thus 50 ms would be coded 0500, 1.1 s would read 1101, and 1 m
(60 s) would be 6002.
Adjustable timers cover one decade, e.g., 62 ms to 620 ms. The upper decade limit is
Tmax. in the timing formula and is the the value defined by the timing code in the part
number.
A typical part number for an adjustable timer would be 1722–C–1102. This is a DC
unit in the -55°C to +125°C temperature range with a 2 form C (DPDT) contact
arrangement in a style “C” mounting, with a maximum time delay of 11s.
Environmental Specifications
Temperature Range:
-55°C to +85°C or -55°C to +125°C.
Vibration:
20 G’s, 10 - 2,000 Hz.
Shock:
50 G’s, 11 ± 1ms duration.
Insulation Resistance:
1,000
megohms, min., at 500Vdc, all terminals
to case.
Dielectric Strength:
1,000Vrms, 60
Hz., at sea level, all terminals to case.
Sealing:
Hermetic, 1.3 in. (33.0mm) of
mercury.
Life:
100,000 operations, min.
Weight:
4A units:
4.5 oz (127.6g) max.
10A units:
8.5 oz (240g) max.
Catalog 7-1773439-7
Revised 4-05
www.tycoelectronics.com
© 2005 by Tyco Electronics Corporation. All Rights Reserved.
CII and TYCO are trademarks.
Other products and company names mentioned herein may be trademarks of their respective owners.
1
Dimensions are in inches and
millimeters unless otherwise
specified. Values in brackets
are metric equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-5-729-0425
South America: 55-11-3611-1514
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-141-810-8967
High Performance Electronic Products
1600/1700 Series Delay On Operate Timers
(Continued)
Outline Dimensions
.375
[9.53]
.063 MAX.
[1.60]
2.419
[61.44]
MAX.
SEATED
HEIGHT
.063 MAX.
[1.60]
.375
[9.53]
INDEX DOT
#6-32 THD
4 PLACES
1.284
[32.61]
INDEX DOT
2.419
[61.44]
MAX.
SEATED
HEIGHT
#6-32 THD
4 PLACES
.625
[15.875]
.31
[7.87]
2.357
[59.88]
MAX.
.625
[15.875]
10 Amp Units
1.25
[31.75]
.297
[7.54]
.297
[7.54]
.375
[9.53]
.750
[19.05]
.062 MAX.
[1.575]
.910
[23.11]
.530
[13.46]
#6-32 THD
4 PLACES
1.284
[32.61]
.750
[19.05]
1.790
[45.47]
1.250
[31.75]
1.790
[45.47]
1.250
[31.75]
1.813
[46.05]
MAX.
SEATED
HEIGHT
INDEX
DOT
1.284
[32.61]
Mounting Option A
Mounting Option B
.063 MAX. .375
[1.60] [9.53]
#4-40 THD
4 PLACES
Mounting Option C
.625
[15.875]
4 Amp Units
"A"
MAX.
"A"
MAX.
"A"
MAX.
1.25
[31.75]
.625
[15.875]
.063 MAX.
[1.60]
.375
[9.53]
INDEX DOT
1.0 MAX.
[25.4]
.625
[15.875]
.875
1.25 MAX. [22.22]
[31.75]
.75 DIA.
[19.05]
MAX.
#4-40 THD
4 PLACES
1.0 MAX.
[25.4]
.625
[15.875]
.875
1.25 MAX. [22.22]
[31.75]
.81 DIA.
[50.57]
MAX.
.250 MAX.
[6.35]
INDEX DOT
.438 MAX.
[11.12]
.375
[9.53]
.062 MAX.
[1.57]
1.0 MAX.
[25.4]
1.25 MAX.
[31.75]
.78 DIA.
[19.8]
MAX.
#4-40 THD
4 PLACES
INDEX
DOT
Mounting Option A
Mounting Option B
Mounting Option C
Wiring Diagrams
–
–
INPUT
+
INDEX DOT
INDEX DOT
–
INPUT
+
INDEX DOT
–
INPUT
+
INDEX DOT
1600 Series (Fixed)
INPUT
+
1 Form C
–
–
INPUT
TIMING
RESISTOR
INDEX DOT
+
2 Form C
–
INPUT
INDEX
DOT
TIMING
RESISTOR
+
3 Form C
–
INPUT
+
4 Form C
TIMING
RESISTOR
1700 Series (Adjustable)
INPUT
+
INDEX DOT
TIMING RESISTOR
INDEX DOT
1 Form C
2 Form C
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
3 Form C
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-5-729-0425
4 Form C
South America: 55-11-3611-1514
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-141-810-8967
2
Catalog 7-1773439-7
Revised 4-05
www.tycoelectronics.com
Dimensions are in inches and
millimeters unless otherwise
specified. Values in brackets
are metric equivalents.
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