What does an ice cube relay look like?
The relays and contacts of these units are normally housed in clear plastic, which has the appearance of an ice cube. Ice cube relays with DC coils are generally resistant to common power quality problems as long as their corresponding DC power supplies are robust.
What should dropout time be for Ice Cube relays?
The pull-in and drop-out operation time of the units should be similar to those of common AC ice cube relays in order to match existing applications. Typical specs range from 9 to 25 milliseconds. The dropout voltages should be consistent with typical specifications. Typical specs range from 10 to 30 percent of nominal.
Why do Ice Cube relays have voltage sags?
Because most fault events on the utility system cannot be cleared in less than 3 or 4 cycles, the relays are very likely to be effected by voltage sags. Figure 3 shows composite test results of four off-the-shelf AC ice cube relays.
What kind of relays do ice cubes use?
Built to handle tough, repetitive-use applications, these are more durable than standard relays. The circular pin terminals plug into relay sockets for easy installation. Also known as ice cube relays.
How do you mount a McMaster ice cube relay?
Attach quick-disconnect terminals or plug relays into relay sockets. Relay sockets (sold separately) mount to 35 mm DIN rail or flat surfaces. Max. Ht. Wd. Dp. Tab Wd. Mount relays to a flat surface using the slot on the flange and attach quick-disconnect terminals, or plug relays into relay sockets.
How does a DPDT ice cube relay work?
A DPDT “ ice cube ” relay is shown in the following photographs, ready to be plugged into its base (left) and with the plastic cover removed to expose both sets of Form-C contacts (right): These relays connect to the socket with eight pins: three for each of the two Form-C contact set, plus two more pins for the coil connections.
What kind of relay plugs into DIN rail?
The circular pin terminals plug into relay sockets for easy installation. Also known as ice cube relays. Relay sockets (sold separately) mount to 35 mm DIN rail or flat surfaces. Ht. Wd. Dp. Built to handle tough, repetitive-use applications, these are more durable than standard relays.