Installation notes
- Each LS Redundant DTA Relay Terminal Block holds two LS DO 24 VDC (Redundant DTA) CHARMs. It provides the keying and field wiring connections for the LS CHARMs.
- Both CHARMs installed in the terminal block must be of the same type.
- The LS Redundant DTA Relay Terminal Block has a built-in relay.
- The LS Redundant DTA Relay Terminal Block has a replaceable fuse that protects the field wiring from short circuits. The fuse cannot be replaced when the terminal block is under power in a hazardous environment.
- The LS Redundant DTA Relay Terminal Block's keying is fixed to allow only LS DO 24 VDC (Redundant DTA) CHARMs.
- Install the terminal block in an odd and even numbered slot on the baseplate. The lower slot number must be odd and the even slot number must be the next higher number (for example, slots 1 and 2 or slots 3 and 4).
- This terminal block is used by a LS DO 24 VDC (Redundant DTA) CHARM when driving a final element that requires more than 500 mA.
- The test point is used to verify each contact individually. To verify one relay, place probes between screw terminal 1 and the test point. To verify the other relay, place probes between screw terminal 2 and the test point.
Specifications
|
Item |
Specification |
|
|---|---|---|
|
Number of connections |
2 |
|
|
Power rating |
250 VAC maximum at 1 A maximum |
|
|
Number of test points |
1 |
|
|
Relay ratings |
||
|
VDC |
||
|
Contact maximum voltage |
250 VDC |
|
|
Contact rating (maximum breaking capacity) |
5 A at 28.8 VDC |
|
|
0.4 A at 48 VDC |
||
|
0.2 A at 125 VDC |
||
|
0.15 A at 250 VDC |
||
|
Contact surge current rating (maximum making capacity) |
10 A for < 1 s |
|
|
Contact minimum load |
100 mA at 12 VDC |
|
|
VAC |
||
|
Contact maximum voltage |
250 VAC |
|
|
Contact rating (maximum breaking capacity) |
5 A |
|
|
Contact surge current rating |
Maximum making capacity |
10 A for < 1 s |
|
Pilot duty load, 0.35 power factor |
30 A |
|
|
Contact minimum load |
100 mA at 12 VAC |
|
