Cutler-Hammer E2 LM Manual de instruções de instalação - Página 4

Procurar online ou descarregar pdf Manual de instruções de instalação para Eletricidade industrial Cutler-Hammer E2 LM. Cutler-Hammer E2 LM 8 páginas. Undervoltage release mechanism (handle reset) with led for e2 l and e2 lm mining circuit breakers

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Page 4

Rear Exiting Leads

(Preferred)

Side Exiting Leads

Figure 2-5 Accessory WIring Options

Solenoid

Plunger

Figure 2-6 Screwdriver Depressing Undervoltage

Release Mechanism Solenoid Plunger

Terminal Block

Opposite-Side

Exiting Leads

Flatblade

Screwdriver

d. Push circuit breaker handle towards the ON position

and hold while sliding UVR plug-in module into slots

in trip unit (Figure 2-4) until retaining clip snaps into

trip unit. For terminal block assemblies, slide termi-

nal block into mounting slot on side of base as plug-

in module is being positioned.

NOTICE

For a UVR having rear or opposite-side exiting pig-

tail leads, thread leads through in side of base

before attempting to insert the mounting bracket.

Pigtail leads exiting in this manner should be eased

through trough as mounting bracket is inserted into

trip unit retaining slots. Use center trough also for

leads exiting the side of the circuit breaker.

LEADS SHOULD BE FORMED AND ROUTED TO

CLEAR ALL MOVING PARTS WHEN ACCESSORY IS

PROPERLY INSTALLED. PIGTAIL WIRES COULD

BE DAMAGED IF IN CONTACT WITH MOVING

PARTS.

2-9. Route wiring to meet installation requirements

(Figure 2-5). If required, complete routing of leads

of opposite side through rear wiring trough.

FAILURE TO KEEP FINGERS AWAY FROM MOVING

PARTS CAN CAUSE PERSONAL INJURY. WHEN

CHECKING ACCESSORY, DO NOT PUT FINGERS

NEAR MOVING PARTS INSIDE CIRCUIT BREAKER

CASE. SPRINGS CAUSE INTERNAL PARTS TO

MOVE QUICKLY AND WITH FORCE.

2-10. Perform mechanical check of UVR after installa-

tion:

a. WIth the circuit breaker still electrically isolated,

reset the circuit breaker.

b. Mechanical check. Using a small flat-blade screw-

driver, (Figure 2-6), push in and hold solenoid

plunger. Switch circuit breaker to ON. Release

solenoid plunger and check that circuit breaker trips.

c. Reset circuit breaker handle and check that handle

arm moves reset lever to reset the solenoid plunger.

d. If mechanical check does not trip circuit breaker,

see if UVR and intermediate plunger are correctly

installed. If UVR and intermediate plunger are cor-

I.L. 29C171

WARNING

Effective 3/98