Universal Remote Control MX-880Z - SPECS SHEET Technické informace stáhnout pdf (Strana 42)

™

Masterpact™ NT and NW Universal Power Circuit Breakers

Accessories

05/2014

Time-Delay Module for Undervoltage Trip

To eliminate circuit breaker nuisance tripping during

temporary voltage dips (micro-breaks), operation of

the undervoltage trip (MN) can be delayed. This

function is achieved by adding an external delay unit

(either adjustable or non-adjustable) to the

undervoltage trip (MN) circuit.

Ready-to-Close Switch (PF)

The ready-to-close position switch indicates that the following

conditions are met and the circuit breaker can be closed:

•

The circuit breaker is open.

•

The closing springs are charged.

•

There is no standing closing or opening order.

Table 36: Time-Delay Module Characteristics

Voltage Ratings of Undervoltage Trip

Vac 50/60 Hz 24/30, 48/60, 100/130, 200/250, 380/480

Vdc 24/30, 48/60, 100/130, 200/250

Voltage Ratings of Time-Delay Module

Adjustable

Vac 50/60 Hz 48/60, 100/130, 200/250, 380/480

Vdc 48/60, 100/130, 200/250, 380/480

Non-Adjustable

Vac 50/60 Hz 100/130, 200/250

Vdc 100/130, 200/250

Operating Threshold

Opening 0.35 to 0.7 V

Closing 0.85 V

Power Consumption 4.5 VA/W (Holding), 200 VA/W (Inrush)

Time-Delay Settings

Adjustable 0.5, 0.9, 1.5, and 3.0 s

Non-Adjustable 0.25 s

Time-Delay Module for

Undervoltage Trip (MN)

Ready-to-Close

Switch (PF)

Table 37: Ready-to-Close Switch Characteristics

Type of Contact 1a/1b Form C

Maximum Number of Contacts 1

Breaking Capacity at a

Power Factor (p.f.) of 0.3

Standard: 100 mA/24V minimum load Low-Level: 2 mA/15 V minimum load

240/380 Vac 5 A 24/48 Vac 3 A

480 Vac 5 A 240 Vac 3 A

600/690 Vac 3 A 380 Vac 3 A

24/48 Vdc 3 A 24/48 Vdc 3 A

240 Vdc 0.3 A 125 Vdc 0.3 A

380 Vdc 0.15 A 250 Vdc 0.15 A

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 179 180

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Universal Remote Control MX-880Z - SPECS SHEET Technické informace Strana 42

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