Specifications

Electroswitch • 180 King Avenue • Weymouth, MA 02188 • TEL: [phone] • FAX: [phone] • www.electroswitch.com
53
COIL
C
D
COIL CIRCUIT
VOLTS
48VDC
125VDC
COIL CIRCUIT DC
OHMS @
25˚C
4.83
18.96
BURDEN (AMPS) AT
RA
TED VOLTAGE
9.9
6.6
COIL
C
D
NOMINAL
VOLTAGE
48VDC
125VDC
VOLTAGE
RANGE
41-56VDC
1
0
6-140VDC
Coil Voltage Data
Coil Burden Data
CONTROL SWITCH RELAYS
Transient Protection
The CSR Control Switch Relay is designed and tested to operate reliably in a normal power
industry environment. This includes being subjected to transients on the control bus up to
3.5KV. Since the CSR is normally isolated from the bus, it will experience transients only if
they occur in the operating mode. This precludes the possibility of a detrimental, accumulating
affect over the life of the unit. As such, no transient protection is needed with circuits B and C.
Circuit A with its voltage divider circuit does remain on the bus and therefore contains a bipolar
diode, as previously explained, to clip the transients to an acceptable value.
Because of the nature of the operation of the rotary solenoid, the CSR does generate tran-
sients that may be of interest to the user. These transients are less than 2KV and generally in
the 1.5KV to 1.8KV range. When used in conjunction with unprotected static devices, like solid
state relays, a bipolar diode is recommended across the rotary solenoid and the relay contact.
The CSR is available with Serial Communication Control.
Circuit B
One Second Time Delay with Anti-Pumping Circuitry
Circuit C
Time Delay with Anti-Pumping Controlled by the Command Contacts
Circuit C
Time Delay And Anti-Pumping Controlled By the
Command Contacts
Circuit C has no built in time delay
. It exactly follows (or is a slave to) the operation of the
command contact (maximum 15 second time delay).
OPTIONS
Three basic circuits are available to satisfy different power industry applications.
Circuit B
One Second Time Delay With Anti-Pumping Circuitry
Circuit B has a time delay that holds the CSR in the command position for 1 sec. It also
has anti-pumping circuitry so that the command contact may be closed indefinitely
(greater than 100 msec).
* Short time current is for one minute.
12VDC
24VDC
48VDC
125VDC
250VDC
600VDC
120VAC
240VAC
480VAC
600VAC
–
–
–
3
–
–
20
15
10
6
–
–
–
3
–
–
20
15
10
6
60
60
60
60
–
–
60
60
60
60
30
30
30
30
–
–
30
30
30
30
CONTACT
CIRCUIT
VOLTS
SHORT TIME
RATING*
(AMPS)
CONTINUOUS
RATING
(AMPS)
INTERRUPTIVE RATING (AMPS)
RESISTIVE
SINGLE
CONTACT
INDUCTIVE
SINGLE
CONTACT
Contact Ratings
53
E
24VDC and 250VDC available – Consult factory.