Technical data

11/98

Accessories

06313053

06313054

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Time-delayed Undervoltage Trip Device (MNR) (1)

To prevent the circuit breaker from tripping in the event of transient voltage drops, this release has a

built-in adjustable time delay. If required, this time delay can be overridden by connecting an

external switch on an additional circuit (wired by the user). The undervoltage trip device is field-

installable.

MN MNR (1)

Control Voltage (V)

60 Hz 120 120

240 —

480 480

DC 24 —

48 —

125 —

250 —

Consumption (Inrush and Sealed)

AC 20 VA 20 VA

DC 15 W 15 W

Operating Time (s)

0.09 0.5–0.9–1.5–3

(1) Not UL Listed.

Heavy Usage Auxiliary Switches (OF)

Four SPDT switches with double break construction. They are directly operated by the main

contacts and ensure a large insulation distance in open position. They are therefore particularly

suitable for insulation of auxiliary circuits or reliable interlockings.

n "a" contacts are open when the circuit breaker is open and closed when the circuit breaker is

closed.

n "b" switches are closed when the circuit breaker is open and open when the circuit breaker is

closed.

See page 30 for operating diagrams. Auxiliary switches are field-installable.