Belastungswächter BH 9097.38/011 Kopie

Load monitor for monitoring electrical industrial drives for symmetrical loading of all three phases. It monitors the active power consumption of motor loads.

Features

• according to IEC/EN 60 255, DIN VDE 0435-303
• Detection of underload P1, overload P2, overload P1 (pre-warning stage) and overload P2 (switchable)
• Setting of P1 and P2 via absolute scale
• for motors up to 22 kW / 400 V or 37 kW / 690 V
• Measuring method: active power measurement
• large current measuring range through automatic range switching
• 1 changeover contact each for signalling P1 and P2
• adjustable startup override ta
• adjustable pickup delay tv
• with or without latching, switchable
• Test / reset button for easy commissioning and as setting aid
• up to 40 A without external current transformer
• Working current principle (output relay activated in case of fault) or resting current principle (output relay not activated in case of fault)
• Switchable optionally for single-phase loads LED indicators
• 45 mm width

Application

The load monitor is suitable for monitoring electrical industrial drives with variable motor load. Design and function: The load monitor BH 9097 monitors the active power consumption of electrical loads. Due to the single-phase measuring principle, symmetrical loading of all 3 phases is assumed, as is usual with motor loads. Using DIP switches, the device can be configured as underload and overload monitor P1 min / P2 max. or as overload monitor with pre-warning stage P1 max. / P2 max. The settings for P1 and P2 are calibrated as absolute values in watts and are made via two rotary switches. 2 LEDs indicate the switching state of the associated output relays. The relays can be configured for working current or resting current principle. Each relay is affected by a separately adjustable pickup delay tv and a jointly adjustable startup override ta.

Measuring current (see table): A, C, E