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The improper installation, operation, and maintenance of lu-
minaire may result in explosion or invalidation of the guarantee.
6.2 MOUNTING LUMINAIRE
6.2.1 CEILING AND WALL MOUNTING
Mark and drill desired location on mounting surface. Secure with ¼"
(or M6) bolts or lag screws (not provided). See Figure 1 and Figure 2.
6.2.2 STANCHION MOUNT
Securely thread onto the appropriate NPT sized conduit. Tighten set-
screw located in the conduit hub (see Figure 3).
For an alternative mounting method using cable glands, refer to
IF1561 for mounting details.
6.2.3 SEALING
Figure 1 - Mounting Ceiling Cover
1/4" or M 6 bolt
Ceiling mounting cover
Catalog Number
Watts
Lamp
Example†
Type
NVMVS1MC075*00
70W
NVMVS1MC105*00
100W
HSE/
HST
(HPS)
NVMVS1MC155*00
150W
NVMVS1MC255*00
250W
NVMVM1MC075*00
70W
NVMVM1MC105*00
100W
HIE (MH)
NVMVM1MC155*00
150W
NVMVM1MC255*00
250W
†
Cat. No. - Shown with M20 Ceiling Mount, /230V 50Hz.
IF 1599
07/09
Figure 2 - Mounting Wall Cover
1/4" or M 6 bolt
Wall mounting cover
GAS (Class I, Zone 2) Ex nR II T...Gc
Rated
Lamp
With G34
With G251 Globe
Ambient °C Holder Globe Only
40
T4
50
E27
T4
55
T4
40
T4
50
E40
T4
55
T4
40
T4
50
E40
T3
55
T3
40
T3
50
E40
T3
55
T3
40
T4
50
E27
T4
55
T4
40
T4
50
E27
T4
55
T4
40
T4
50
E27
T3
55
T3
40
T3
50
E40
T3
55
T3
Copyright © 2009, Cooper Industries, Inc.
6.2.3.1 GENERAL
The cable glands shall have a degree of protection of IP66 or higher.
Use one of the following sealing methods to maintain the restricted
breathing properties.
6.2.3.2 STANCHION COVER
Alternative sealing method for stanchion mount using RBPSI rubber
sealing plug (see Figure 4).
- Pull wiring conductors through hole in stanchion (up to 3-
#12AWG conductors).
- Cut a small slit in the center recess in the middle of the rubber
sealing plug and feed the conductors through the plug.
- Push the plug and wiring assembly into the slot in the cover so
that it is flush with the contour of the cover.
- Use silicone sealant to seal the plug to the cover and to fill the
recess where the wiring comes through the plug.
Figure 3 - Mounting Stanchion Cover
setscrew
Table 1
NVMV 70W - 250W (Small Housing)
With G34 Globe With G251 Globe
Only
and Reflector
and Reflector
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T3
T3
T4
T3
T3
T3
T3
T3
T3
T3
T3
T3
T3
T3
T3
T2
T3
T2
T2
T3
T2
T2
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T4
T3
T3
T4
T3
T3
T3
T3
T3
T3
T3
T3
T3
T3
T3
T3
T2
T2
T2
T2
T2
T2
T2
Figure 4 - Mounting Rubber Plug
Install Rubber
Plug into
Cover
Stanchion
mounting
cover
Power wire
DUST (Class II, Zone 21) Ex t IIIC T...Db
With G34
With G251Globe
Globe Only
Only
99˚C
109˚C
109˚C
119˚C
114˚C
124˚C
99˚C
117˚C
109˚C
127˚C
114˚C
132˚C
122˚C
140˚C
132˚C
150˚C
137˚C
155˚C
168˚C
174˚C
178˚C
184˚C
183˚C
189˚C
99˚C
109˚C
109˚C
119˚C
114˚C
124˚C
99˚C
117˚C
109˚C
127˚C
114˚C
132˚C
122˚C
140˚C
132˚C
150˚C
137˚C
155˚C
168˚C
194˚C
178˚C
204˚C
183˚C
209˚C
For restricted
breathing test
With G34 Globe
With G251 Globe
and Reflector
and Reflector
104˚C
109˚C
114˚C
119˚C
119˚C
124˚C
104˚C
128˚C
114˚C
138˚C
119˚C
143˚C
140˚C
140˚C
150˚C
150˚C
155˚C
155˚C
189˚C
218˚C
199˚C
228˚C
204˚C
233˚C
104˚C
109˚C
114˚C
119˚C
119˚C
124˚C
104˚C
128˚C
114˚C
138˚C
119˚C
143˚C
140˚C
140˚C
150˚C
150˚C
155˚C
155˚C
189˚C
218˚C
199˚C
228˚C
204˚C
233˚C
-4-
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