specifications are subject to change without notice (30.09.2005) 1 solid state relays accessories .power type up 62 - .. temperature limit switch for overheat protection of small assemblies. product description the temperature limit switch is a readily available accessory. it is a thermostat especially designed for overheat protec- tion for small assemblies. the thermal response is excel- lent due to its miniaturized housing. it becomes an effec- tive thermal cutout due to the fact that this limit switch can be fitted close to the heatsink of the relay. when connected serial with the control voltage, the tls will switch off the relay as soon as the operating temper- ature of the switch is reached. the relay will be activated ordering key thermostat type switch temperature again when the temperature drops (approx. 30?) below its cutout value. in the rz3 relay, the tls can be connected to two free (in- ternally non-connected) termi- nals (b1/b2). thermal compound must be added when inserting the tls (to guarantee a fast thermal response). the heatsink selection charts (load current versus ambient temperature) for rso types provide information about which thermal switch to use. switch temperature up 62-70 70 c (158 f) up 62-80 80 c (176 f) up 62-90 90 c (194 f) type selection installation the up 62 - .. is mounted in one of the two slots of the 3-phase ssr housing. up 62 - 90
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