Siemens Low Voltage Power Circuit Breaker WLH2A320

DANGER: Hazardous voltage. Will cause death, serious personal injury, or equipment damage. Turn off and lock out all power supplying this device before working on this device.

Powder-coated inner sides of the covers facing the arc chutes not burned

No damage to the powder-coating on the inner side of the cover

Upload a photo of the arc chute cover

Sign off on the arc chute cover inspection

Warning: Mishandling may lead to broken insulation plates of the arc chute housing, and compromised insulation capacity.

Loosen screw by approx. 15 mm; do not remove it; FS III and FS II, class C: remove screw completely

Push the cover back; FS III: lift the cover carefully

Do not stand arc chutes up, when placing them on a table, or any other surface outside of the circuit breaker. The arc chutes should be placed on their side to prevent breakage of the insulation plates.

Sign off on the arc chute removal

NOTE: Before removing the screws, support circuit breaker in such a way that the circuit breaker feet are not supporting the weight of the circuit breaker.

Circuit breaker properly supported?

Will cause death, serious personal injury, or equipment/property damage.

Turn off and lock out all power supplying this device before working on this device.

Only qualified personnel should work on this equipment, after becoming thoroughly familiar with all warnings, safety notices, and maintenance procedures contained herein and on the devices.

The successful and safe operation of this equipment is dependent on proper handling, installation, operation and maintenance.

Can cause serious personal injury.

Rearwall carefully draw off to view the end position retaining springs

Note the position of the end position retaining springs

Remove end position retaining springs