Preparing for a fire inspection? Avoid common problems with our FREE guide and checklist.

Reliable (Rasco) G4 / G4A / G5 Black Cover Plate Assembly 135F (57C)


Reliable has decided to combine the Reliable RFC and Reliable G4 into a single new plate. The Reliable G5. So in the interim while they are getting this sorted out please be aware that you may receive a plate that looks slightly different but that it has been tested by Reliable to work for this specific sprinkler.

Reliable (Rasco) Black 135F (57C) Cover Plate Assembly for G4, G4A, & G5 Fire Sprinklers provides aesthetically-pleasing concealment to select Reliable concealed fire sprinklers with rated temperatures of 135F (57C) to 165F (74C).

  • Buy 10 for $14.20 each and save 5%
  • Buy 100 for $12.71 each and save 15%
  • Buy 500 for $10.47 each and save 30%
SKUReliable Part NumberCover Plate TemperatureFire Sprinkler Temperature
RLG4BLNot Available135F (57C)135F (57C) to 165F (74C) Fire Sprinklers
Approvals / ListingsFire Sprinkler ModelsApprovals / ListingsAvailability
135F (57C) to 165F (74C) Fire SprinklersFor Reliable Model G4, G4A, & G5 Fire Sprinklers (See SINs Below)UL and cULusIn Stock

Product Description

Reliable (Rasco) Black 135F (57C) Cover Plate Assembly for G4, G4A, & G5 Fire Sprinklers activates at 135F (57C) to facilitate timely activation of fire sprinkler heads with temperatures rated at 135F (57C) to 165F (74C).

Sprinkler Identification Numbers (SIN) for this Reliable (Rasco) Black 135F (57C) Cover Plate Assembly for G4, G4A, & G5 Fire Sprinklers include:

  • AG5604
  • AG5654
  • R2111
  • R2112
  • R2113
  • R2115
  • R2118
  • R2211
  • R2212
  • R2213
  • R2215
  • R2218
  • R2511
  • R2512
  • R2513
  • R2518
  • R4441
  • R5411
  • R5412
  • R5413
  • R5415
  • R5418
  • R6115
  • R6118
  • R6215
  • R6218
  • R7146
  • RA0611
  • RA0612
  • RA0616
  • RA0914
  • RA2312
  • RA3211
  • RA3216
  • RA3411
  • RA3413
  • RA3415
  • RA3415
  • RA5114

This Reliable (Rasco) Black 135F (57C) Cover Plate Assembly for G4, G4A, & G5 Fire Sprinklers is listed by UL and cULus. When this black fire sprinkler cover plate reaches a specified temperature the solder holding the plate's decorative exterior on the frame melts, and the two separate. Cover plates in stock finishes other than black are available on our site, and custom-finished may be available by special order - call us at 888-361-6662 or click here to contact us.

For many cover plates, the rated temperature is at least 20F (6.7C) cooler than the sprinkler head's activation temperature, which ensures that the cover plate detaches early enough to allow the sprinkler to activate on time. However, each manufacturer's product line varies slightly and cover plate temperatures may be closer to or further away from the fire sprinkler's activation temperature. Use only the cover plate approved by the manufacturer for your specific sprinkler.

Fire Sprinkler Helpful Tips:

Tip 1: When replacing cover plates it is important to purchase replacements from the same manufacturer as the fire sprinkler. Each manufacturer's plate is a little different in size, color, and so on. The manufacturer and temperature of a cover plate is printed on the base of the plate. To view this information, remove the cover plate. Most cover plates are either twist off or pull off.

Tip 2: Any modifications or replacements to a fire sprinkler system should be performed by qualified professionals.

Tip 3: National Fire Protection Association (NFPA) guidelines state that spare fire sprinkler heads and a wrench should be accessible at all times in a facility with a commercial fire sprinkler system installed. Often, state regulations also apply. Check with your local fire department.

Tip 4: All fire sprinkler systems should be visually inspected (often) and professionally inspected (annually).

Write Your Own Review
You're reviewing:Reliable (Rasco) G4 / G4A / G5 Black Cover Plate Assembly 135F (57C)
Your Rating