B110 Motorscope

Advanced Protection Relay for 400/525/1000 VAC Motors

  • Over-load (e.g. pump jammed)
  • Under-load (e.g. run-dry)
  • Over-Voltage
  • Under-Voltage
  • Phase Failure (e.g. a wire is cut)
  • Phase sequence changes (e.g. after a power failure, the phases are swapped)
  • Phase Imbalance (e.g. one of the phases carries more load than the other two)
  • Motor wire Insulation Test: Before starting the motor, the B110 tests the motor wires to verify that none of them are down to earth.
  • Not against lightning

The B110 and the enclosed Insulation Test Box, forms an integrated insulation test module. Each time before startup, the motor’s leads are tested for earth-leakage currents. In the event that the leakage current is too high, the controller will not start the motor.

The B110 features a complete integrated OPTIMIZER with a 32 character dot-matrix display. The OPTIMIZER is a tool which is used to display or optimize various settings of the B110 controller.  A user manual for this OPTIMIZER is included in the user manual of the B110.

The B110 comes in a robust, DIN-rail mountable, powder-coated, steel enclosure.

The B110 has an Auxiliary Inhibit input which stops the motor when the circuit between AUX and COM is OPEN.
This input may thus be used to remotely stop the motor.
For example:
A normally closed pressure sensor may be connected to this input.
When a specified pressure is reached, the connection will open and the B110 will stop the motor.

The B110 has a Recovery Timer to allow a sump to fill up before a restart attempt is made (after a run-dry condition).
This timer is manually adjustable from 4 minutes to 16 hours.

This input is used to keep the controller in the reset (no fault recognition) state. In applications where a soft- or star-delta starter is used, the controller can be held in reset for the duration of the start-up period.

This input is used to give a pulse reset through to the controller. If this input is made constantly active, the controller will reset, but will not stay in the reset condition. This input is thus usually connected to the START button of installations.

The B110 has a real-time clock. This allows the unit to store the date and time (year, month, day, hour, minute) of each one of the last 43 trips.

The B110 is fitted with a fault output relay, which may be used to power a 230V load (up to 8A), for example a siren, an emergency light, etc.

Technical Specifications
Motor Voltage: L1→L2→L3=400/525VAC
Control Voltage: V1→V2=110/230/400/525VAC
Current Range: Up to 15 Amp x CT Ratio
Power Range: 1→100kW(400V)/132kW(525V)
Frequency Range: 40→70 Hz
Consumption: 3 VA
Relay Output: 400V:16A
Cos Phi Range: 0→1 Inductive
Temp Range: -15→+70°C
Weight: ± 1kg
Dimensions: 122 x 119 x 65 mm


External CT Shunt Resistor Values

FOR A 2.5VA, 250:1 CT

Current Range Resistor Value CT Radio
1-12 Amp 32Ω 1
8-24 Amp 16Ω 2
20-48 Amp 8Ω 4
40-96 Amp 4Ω 8
70-170 Amp 2Ω 16

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