HW 17- Limit Indicator for Mounting Rails

HW 17 is designed for mounting on top hat rails (TS35) in switching cabinets and housings. This microprocessor-controlled device monitors the temperature at a defined measuring point. Display of actual or limit value. There are two buttons on the front for adjustment of limit value and device setup.

Depending on the configuration, the relay (change-over contact) switches self-locking or resetting. Self-locking can be time-delayed. The lock is released by pressing the reset key on the device or by disconnecting from the power supply. The operating status is indicated with a LED. The relay switches ohmic loads 1-pole up to 250 VAC, 3 A, we recommend using external contactors or relays controlled by HW 17. Wiring with convenient screw terminals..

Technical Data

device type limit value controller
input Pt 100 (2 or 3 wire), NiCr-Ni, Fe-CuNi (L) and (J), PtRh10-Pt (S), 0(4) ... 20 mA, 0 ... 10 V and other thermocouples
limit range -100 ... 1600 °C depending on sensor type
limit value adjustment with buttons on the front
display digital temperature or limit value display, LED for operating-status indication
output relay (change-over contact)
switching power 250 V / 3 A
protection category IP 20
mounting on 35 mm mounting rails
dimensions 22.5 x 75 x 105 mm

Order Data

order no. nominal voltage
060427 230 VAC
060428 24 VDC

Hotline: +49 (0) 6251 9626-0