Instructional Leaflet IL0131134EN
Effective February 2022
Supersedes October 2020
Air circuit breakers with PXR trip units -
PXR rated current (
I
n
) marking change
m
WARNING
(1) ONLY QUALIFIED ELECTRICAL PERSONNEL SHOULD BE
PERMITTED TO WORK ON THE EQUIPMENT.
(2) ALWAYS DE-ENERGIZE PRIMARY AND SECONDARY CIRCUITS IF
A CIRCUIT BREAKER CANNOT BE REMOVED TO A SAFE WORK
LOCATION.
(3) DRAWOUT CIRCUIT BREAKERS SHOULD BE LEVERED (RACKED)
OUT TO THE DISCONNECT POSITION.
(4) ALL CIRCUIT BREAKERS SHOULD BE SWITCHED TO THE OFF
POSITION AND MECHANISM SPRINGS DISCHARGED.
FAILURE TO FOLLOW THESE STEPS FOR ALL PROCEDURES
DESCRIBED IN THIS INSTRUCTION LEAFLET COULD RESULT IN
DEATH, BODILY INJURY, OR PROPERTY DAMAGE.
m
WARNING
THE INSTRUCTIONS CONTAINED IN THIS IL AND ON PRODUCT
LABELS HAVE TO BE FOLLOWED. OBSERVE THE FIVE SAFETY
RULES:
– DISCONNECTING
– ENSURE THAT DEVICES CANNOT BE ACCIDENTALLY RESTARTED
– VERIFY ISOLATION FROM THE SUPPLY
– EARTHING AND SHORT-CIRCUITING
– COVERING OR PROVIDING BARRIERS TO ADJACENT LIVE PARTS.
DISCONNECT THE EQUIPMENT FROM THE SUPPLY. USE ONLY
AUTHORIZED SPARE PARTS IN THE REPAIR OF THE EQUIPMENT.
THE SPECIFIED MAINTENANCE INTERVALS, AS WELL AS THE
INSTRUCTIONS FOR REPAIR AND EXCHANGE, MUST BE STRICTLY
ADHERED TO PREVENT INJURY TO PERSONNEL AND DAMAGE TO
THE SWITCHBOARD.
Instructions apply to:
UL489 PD-NF
IEC IZMX16
UL489 PD-RF
IEC IZMX40
UL1066 Magnum
Magnum PXR
