The unit is for use with equipment that has in-built thermistors to DIN 44081 and will monitor up to 6 thermistors in a chain. When the resistance of the thermistors rise above the release level, or a short circuit is detected, the relay will de-energise. When the reset level is reached the relay will energise once again. If Y1 and M are linked together the unit remains latched until the reset button is either pressed or the link or the supply is removed.
Thermistor over-temperature
Thermistor short circuit
Thermistor open circuit
Latching facility - selectable
Test facility
LED indication
Monitors up to 6 thermistors
Write-on ID tab
Dimensions: H78 x W45 x D99mm
LED indication
DIN rail mount with SPDT relay outputs and flame retardant to UL94 V0
Supply voltage variation range: 0.85 - 1.15 x Un
Operating temperature range: -20 to 60°C (629-831 and 629-847: -10 to +55°C)
Electrical life: 1.5 x 105 operations at rated load
Output relay contact rating specified at 250Vac
Attribute | Value |
---|---|
Monitoring Application | Temperature |
Supply Voltage | 24 V ac |
Contact Configuration | SPDT |
Time Delay | 50 ms |
Temperature Sensitivity | Overtemperature |
Width | 45mm |
Maximum Operating Temperature | +60°C |
Height | 78mm |
Dimensions | 99 x 45 x 78 mm |
Length | 99mm |
Minimum Operating Temperature | -20°C |
Operating Temperature Range | -20 → +60 °C |