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Text artwork 990-9030 Rev. A. Equipment Handbook for the Low Voltage Disconnectors series Page 7 of 20
SECTION 4: CONTROLS AND INDICATORS
KEYSWITCH
1 The keyswitch, when set to the NORMAL position allows the contactor to operate normally as
described in Section 3 Para 2. When set to the OPEN position the contactor control is overridden and
the contactor is de-energised.
LVD PCA LED
2 LED1 on the LVD PCA is lit when the input voltage to the PCA is greater than the low voltage
disconnection (LVD) setting, 42.5 V. During normal operation the LED is lit.