E. Dold & Söhne GmbH & Co. KG

Tel.: +49 7723 654-0
E-Mail: dold-relays@dold.com

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E-Mail: ab@dold.com

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BH 9097

Motor Load Monitor

BH 9097


Nominal voltage

Auxiliary voltage

Nominal current max

Approvals and Markings


  • 0053943
  • BH9097.38 AC230V AC24A
The load monitor BH 9097 of the VARIMETER series reliably monitors the load of motors as well as... more

Product description

The load monitor BH 9097 of the VARIMETER series reliably monitors the load of motors as well as the functionality of electrical consumers. If the load exceeds or falls below the limit values, which can be set by means of a rotary switch, the corresponding output relay is activated. To suppress short-term load fluctuations, a response delay tv can be set. LEDs indicate the switching status of the associated output relays. Early detection of impending failures and preventive maintenance prevent costly damage, and as a user you benefit from the operational safety and high availability of your system.

Technical specifications

Width: 45 mm
1- / 3-phase: 1, 3
Measuring range max.: 40 A (37 kW)
Operate delay: Yes
Auxiliary voltage: Without, AC, DC
Output contacts: 2 x 1 C/O contacts
Enclosure design: Switch cabinet
Type: BH 9097


  • Identification of
    - Underload P1 and Overload P2
    - Overload P1 (prewarning) and Overload P2 programmable
  • Adjustment of P1 and P2 on absolute scale
  • For motors up to 22 kW / 400 V; 37 kW / 600 V
  • Large current range because of automatic range selection
  • De-energized or energized on fault, programmable
  • Early detection of irregularities
  • Reduced wiring effort


  • According to IEC/EN 60255-1, IEC/EN 60255-26, DIN/VDE 0435-303
  • Measurement: Effective power
  • 1 changeover contact for P1 and 1 changeover contact for P2
  • Adjustable start-up time delay ta
  • Adjustable switching delay tv
  • With automatic or manual reset, programmable
  • Test / Reset button for easy setup
  • Up to 40 A without external current transformer
  • Also for single-phase operation
  • LED indicators
  • Width 45 mm