CTX Contact Time Extender
Part Number | Type | Input Voltage | Current Input Trip |
632A101 | CTX-1 | 48 Vdc | - |
632A102 | CTX-1 | 125 Vdc | - |
632A103 | CTX-1 | 24 Vdc | - |
632B341 | CTX-2 | 125 Vdc | 2.0 A |
632B342 | CTX-2 | 125 Vdc | 1.0 A |
632B343 | CTX-2 | 125 Vdc | 0.2 A |
632B344 | CTX-2 | 48 Vdc | 2.0 A |
632B345 | CTX-2 | 48 Vdc | 1.0 A |
632B346 | CTX-2 | 48 Vdc | 0.2 A |
632B347 | CTX-2 | 24 Vdc | 2.0 A |
632B348 | CTX-2 | 24 Vdc | 0.2A |
CTX-3 have Form C contact with delay | Form A Output Contact Instantaneous | ||
632B051 | CTX-3 | 125 Vdc | 2.0 A |
632B052 | CTX-3 | 125 Vdc | 1.0 A |
632B053 | CTX-3 | 125 Vdc | 0.2 A |
632B054 | CTX-3 | 48 Vdc | 2.0 A |
632B361 | CTX-2 | 250 Vdc | |
632B362 | CTX-2 | 250 Vdc | |
632B363 | CTX-2 | 250 Vdc | |
632B365 | CTX-2 | 125 Vdc | |
Delay: 50-70 msec | |||
632B371 | CTX-2 | 120 Vac | |
632B372 | CTX-2 | 120 Vac | |
632B373 | CTX-2 | 120 Vac | |
Nominal Coil V | |||
632B380 | CTX-2V | 125 Vdc | 125 V |
632B381 | CTX-2V | 125 Vdc | 48 V |
632B382 | CTX-2V | 125 Vdc | 24 V |
CTX Contact Time Extender
The CTX relays supply a 1.5 to 2.5 seconds of contact output time extension for a momentary contact input. The CTX allows slower devices such as SCADA systems and annunciators to operate thus preventing data loss on the action of protective relays/devices or trip indicators such as the E-MAX Trip Indication Relay (TIR).
The CTX-1 is designed for existing installations where the high-speed operation of the auxiliary relays, like the TIR, have been missed due to the short period of time between pick-up and drop-out. The CTX-1 may be easily installed in the field to extend the contact output times.
The CTX-2 is a complete unit containing a fast input sensing relay which triggers the maintained output when the input contact closes. The CTX-2 is also available in an AC input format and a model designed for voltage trips.
The newest addition to the CTX family is the CTX-3. This unit delivers the same 1.5 to 2.5 seconds of output time extension on the form C output contact while the form A output contact is instantaneous. Case dimensions for the CTX-3 are the same as the CTX-2.
Power Supply
|
125 Vdc (90 - 156 Vdc) |
48 Vdc (38 - 56 Vdc) | |
24 Vdc (20 - 28 Vdc) | |
Current Input Trip Level | For CTX-2 and CTX-3 only |
0.2 A | |
1.0 A | |
2.0 A | |
Minimum Current Input Time | 2 milliseconds |
Timer Accuracy | 10% for voltage or temperature variations |
Output Time Delay | Contact closes within 5 milliseconds after input |
Output Contact Rating | 125 Vdc, 0.5 A resistive |
Operating Temperature Range | 0 to 50 degrees Centigrade |
Storage Temperature Range | -30 to 70 degrees Centigrade |
SWC Immunity | Circuitry protected standard SWC filter |