BuyLog Flippingbook FEB 2025

LOW VOLTAGE POWER & INSULATED CASE CIRCUIT BREAKERS, BUYLOG SECTION 8

8-156

— Power Break ™ II circuit breakers Trip unit characteristics

Additional Features and Characteristics Exclusive to the Enhanced MicroVersaTrip ™ PM Trip Unit 1

Trip Unit Suffix M (Metering)

Function

Description

P (Relaying)

PM (Metering & Relaying)

Communications Amperes (A, kA) 2

POWER LEADER Communications Bus Link

STD STD

STD STD

STD STD

Selectable Phase Current ±2.5%

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Voltage (V)

L-L or L-N Volts ±1.5%

Energy (kWh, MWh, GWh) Real Power (kW/MW) Total Power (kVA/MVA)

Total Energy Usage on Brkr ±4%

L-L or L-N Power ±4% L-L or L-N Power ±4% Circuit Frequency ± 1Hz

Frequency (Hz)

Demand & Peak Demand (kW)

– Adjustable pickup 50-90% – Adjustable delay, 1-15 seconds OFF – Adjustable pickup, 110-150% – Adjustable delay, 1-15 seconds OFF – Adjustable pickup, 10-50% – Adjustable delay, 1-15 seconds OFF – Adjustable pickup, 10-50% – Adjustable delay, 1-15 seconds OFF – Adjustable pickup, 10-990 kW – Adjustable delay, 1-15 seconds OFF – Power Reversal Direction

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Under Voltage Trip

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Over Voltage Trip

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Voltage Unbalance

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Current Unbalance

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Power Reversal

1 MicroVersaTrip PM ™ functions require 24 Vdc control power. 2 Ampere reading also standard on MicroVersaTrip Plus trip units.