Model N252 EC Pendent and
Recessed Pendent Extended
Coverage Area Density
Sprinklers for Storage and
Extra Hazard Applications
Bulletin 008
Rev.
B
Model N252 (SIN RA0852)
Nominal K-Factor = 25.2
Features
1. Provides maximum coverage areas up to 14 ft.
(4,27 m) by 14 ft. (4,27 m) 196 ft
2
(18,21 m
2
).
2. Can be installed recessed below finished
ceilings with
1
2
²
(13 mm) adjustment. Available in
brass, chrome, black plated and white polyester
coated finishes.
3. 165
°
F (74
°
C) and 212
°
F (100
°
C) temperature
ratings.
4. Listed by Underwriters’ Laboratories Inc,
Underwriters’ Laboratories for use in Canada
and Factory Mutual.
5. cULus Listed for unobstructed or
noncombustible obstructed construction.
The Reliable Automatic Sprinkler Co., Inc.
103 Fairview Park Drive, Elmsford, New York, 10523
Bulletin
008
Rev.
B
Listings and Approvals
Listed by Underwriters’ Laboratories Inc.,
UL certified for Canada (cULus) and
FM Approved
(Pendent only).
NYC MEA 258-93-E
UL Listing Categories
Sprinklers, Automatic & Open
Sprinklers for Storage Protection (Area/Density)
UL Guide Number
VNIV
Product Description
The Models N252 EC Pendent and Recessed Pendent
Sprinklers are control mode, extended coverage
sprinklers for storage and extra hazard density/area
applications. This includes protection of the storage and
display of Class I through Class IV commodities,
non-expanded Group A Plastics, and non-expanded,
exposed Group A Plastics in retail stores. The Model
N252 EC sprinklers offer maximum coverage areas up to
14 ft by 14 ft (196 ft
2
), which is almost twice of that
provided by standard coverage sprinklers. This offers
the advantage of decreasing the number of required
sprinklers, reducing labor and material costs.
Operation
The Reliable Model N252 Extended Coverage
Pendent and Recessed Pendent Sprinklers utilize a
levered fusible alloy solder link. When the rated
temperature is reached, the solder melts and the two link
halves separate allowing sprinkler to operate and water
to flow.
N252 EC Pendent
N252 EC Recessed Pendent
(UL approved only)
