Timers
True Delay on Release
Type DBB51
• Time range 1 to 600 s - capacitor powered
• Knob-adjustable time setting
• Automatic start after drop-out of power supply
• Repeatability:
≤
0.2%
• Output: 5 A SPDT relay
• For mounting on DIN-rail in accordance with DIN/EN
50 022
• 17.5 mm DIN-rail housing (DIN 43880)
• Combined AC and DC power supply
• LED indication for relay status and power supply ON
Product Description
Multi voltage (true) delay on
release timer.
Time ranges from 1 to 600 s
covered by 3 models.
Housing 17.5 mm wide suit-
able for DIN-rail mounting.
Fits in M36 cover.
Ordering key
Housing
Function
Type
Item number
Output
Power Supply
Range
DBB 51 C M24 10M
Type Selection
Mounting
For DIN-rail
Output
SPDT
SPDT
SPDT
Time range
1 to 10 s
6 to 60 s
60 to 600 s
Supply: 24 VDC and 24 to 240 VAC
DBB 51 C M24 10S
DBB 51 C M24 1M
DBB 51 C M24 10M
Time Specifications
Time ranges
Type 10 S
Type 1 M
Type 10 M
Repeatability
Time variation
Within rated power supply
Within ambient temperature
Reset
DBB51CM2410S
DBB51CM241M,
DBB51CM2410M
1 to 10 s
6 to 60 s
60 to 600 s
≤
0.2%
≤
0.05%
≤
0.2%
Power supply applied for:
≥
200 ms
≥
200 ms
≥
400 ms
Output Specifications
Output
Rated insulation voltage
Contact Ratings
(AgSnO
2
)
Resistive loads
AC 1
DC 12
Small inductive loads
AC 15
DC 13
Mechanical life
Electrical life
Operating frequency
Dielectric strength
Dielectric voltage
Rated impulse withstand
voltage
SPDT relay
250 VAC (RMS)
µ
5 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥
30 x 10
6
operations
≥
10
5
operations
(at 5 A, 250 V, cos
ϕ
= 1)
< 7200 operations / h
2 kVAC (RMS)
2.5 kV (1.2/50µs)
Supply Specifications
Power supply
Rated operational voltage
through terminals: A1, A2
Overvoltage cat. III
(IEC 60664, IEC 60038)
24 VDC ± 15% and
24 to 240 VAC +10% -15%,
45 to 65 Hz
≤
40 ms
1.5 VA
0.06 W
Voltage interruption
Rated operational power
AC supply:
DC supply:
Specifications are subject to change without notice (02.04.08)
1
DBB51
General Specifications
Power ON delay
Power OFF delay
Indication for
Power supply ON
Output relay ON
Environment
Degree of protection
Pollution degree
Operating temperature
Storage temperature
≤
200 ms
≤
100 ms
LED, green
LED, yellow (flashing when
timing)
(EN 60529)
IP 20
3 (IEC 60664)
-20 to 60 °C, R.H. < 95%
-30 to 80 °C, R.H. < 95%
Housing
Dimensions
Material
Weight
Screw terminals
Tightening torque
Approvals
CE Marking
EMC
Immunity
Emission
Timer Specifications
17.5 x 81 x 67.2 mm
PA66
70 g
Max 0.5 Nm according to
IEC EN 60947
UL, CSA
Yes
Electromagnetic Compatibility
According to EN 61000-6-2
According to EN 61000-6-3
According to EN 61812-1
Mode of Operation/Settings
When the power supply is
applied the relay operates.
When the power supply is
interrupted the time period
starts and, at the end of the
set time period, the relay
releases.
If power supply is reapplied
before the relay releases the
time is reset and the relay
remains ON.
Note:
DBB51 shoud not be oper-
ated by pulses shorter than
200 ms.
For these puroposes the
relay DMB51, operated by
external contact function,
should be used.
Time setting
Knob adjustable on absolute
scale.
Operation Diagram
ON
OFF
Wiring Diagram
Dimensions
17.5
67.2
18.7
18
L(+)
A1
16
m
81
A2
N(-)
15
2
2
Specifications are subject to change without notice (02.04.08)
45
Industrial Control Electronics
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