RK Electronics COB Catalog Page

True Off Delay

Specifications

Electrical

Input Voltage:

24 or 115VAC, ±10%, 50/60Hz
24 or 110VDC ±10%,
Filtered to Full Wave.

Time Delays:

Type: Adjustable or Factory Fixed
Range: 50 Milliseconds to 1 Hour
Repeat Accuracy:

±1% with Fixed Conditions
Fixed Time Accuracy: ±5% Worst Case
Reset Times: 50 Milliseconds, Typical
Minimum On Time:

1.5 Seconds (up to 10 Min.)

7 Seconds (11 Min. to 1 Hr.)

Protection: Varistor and/or R-C Network
Power Consumption:

5VA, .5A Peak Inrush

Ordering Information

COB - 115A - 2 - 10S

Plug-In Timer

Output Ratings:

7.5 Amps, 1/3 HP @ 240VAC
10 Amps, 1/6 HP @ 120VAC
200,000 Full Load Electrical Cycles
10,000,000 Mechanical Cycles

Physical

Mounting: Plug-In
Termination: 8 or 11 Pin
Packaging: Dust Cover
Weight: 7 Oz.

Ambient Temperatures

Operating: -10°C to 65°C
Storage: -10°C to 85°C

COB

• No Power Required
During Timing

• 2-Wire Off Delay

R-K Model

Input Voltages

24D - 24VDC
110D - 110VDC
24A - 24VAC

115A - 115VAC

Adjustments

1 - Fixed (specify time) (DPDT-8 Pin)
2 - Knob On Top
(DPDT-8 Pin)
4 - Fixed (specify time)
(DPDT-11 Pin)
5 - Knob On Top
(DPDT-11 Pin)

Dimensions

.6"

Connections

3
2

+

Adj. Code 1 & 2 Adj. Code 4 & 5

2.9"

4

1

Input

Voltage

• Digital CMOS Design

Time Delays

0.5S - 0.05 to 0.5 Sec.
1S - 0.05 to 1 Sec.
5S - 0.05 to 5 Sec.
10S - 0.1 to 10 Sec.
15S - 0.15 to 15 Sec.
30S - 0.3 to 30 Sec.
1M - 0.2 Sec. to 1 Min.
2M - 1.2 Sec. to 2 Min.
3M - 1.8 Sec. to 3 Min.
5M - 3 Sec. to 5 Min.
10M - 6 Sec. to 10 Min.
20M - 12 Sec. to 20 Min.
30M - 18 Sec. to 30 Min.
1H - 36 Sec. to1 Hr.

.6"

5

6

7

-

8

1.8"

2.3"

6

5

4

3

2

+

11

1

Input

Voltage

7

8

9

10

-

• 10 Amp, DPDT

• ±0.2% Repeatability

• Transient Protected

• Timing Ranges
Up To 1 Hour

E71902 LR43414

Operation

True Off Delay

Application of the input voltage will
energize the internal relay, transfer­ring the output contacts and charge
the internal storage component. When
the input voltage is removed, the relay
remains energized and the timing
begins. At the end of the timed period,
the relay will be de-energized and the
timing circuit will reset. Re-application
of the input voltage during timing will
reset the COB and the relay will
remain energized. The input voltage
must be applied to the COB for a
minimum amount of time to ensure
proper operation of the timer or the
internal relay will energize and not
time out (see specifications).

Time
Delay

Remove
Power

Initiate

Output Contacts
De-Energized

• •

2/19/01

E7