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ved | Bulleltin 4051 06/19

WARNING: 

Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot 

surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot 
surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.

Product Overview | 4051 ERA Igniters

ERA igniters are intended for use in systems that require sealed ignition wiring. They have a 

¾  

-20 threaded igniter connection for sealed 

air-craft  type ignition wiring, and are intended for Class 1 Div. 2 applications. Although the wiring method used between the ignition 
transformerand the spark plug was designed and chosen to be suitable for use in Class 1 Div. 2 hazardous locations, it DO ES NOT carry 
certifi cations or third party approvals. Standard 6000 volt transformers and 4085-ERA ignition cables are used with these igniters. Spark 
should be shut off  aft er lighting.

ERA IGNITERS

3/4" NPT 4051 ERA IGNITERS

4051-B-C-D-E-ERA igniters have a 

¾  

" NPT threaded connection and are intended for use in systems that require sealed ignition wiring 

that normally accept the 4051 igniters. Except for the electrode connection all other dimensions and igniter functions are the same as 
the regular 4051 igniters. At this time the “A” size 4051 is not available in the ERA style.

Bulletin 4051

Page 4

NOTE:

 ERA style electrode will not fi t in regular 4051 igniters.

ERA style air adapter

¾  

" - 20" UNEF 

2A for use with 
4085-ERA cable

ERA style electrode

¾  

" Male pipe thread

L

1.50

Igniter L

 size 

dimension

 4051-B-ERA 2

3⁄8

"

 4051-C-ERA 2

7⁄8

"

 4051-D-ERA 1

11⁄16

"

 4051-E-ERA 1

7⁄8

"

Igniter Size 

B 

C 

D 

E

ERA Style Electrode w/spider 

4-53635-2 

4-53635-3 

4-53635-4 

4-53635-5

4051-ERA REPLACEMENT ELECTRODE LIST

NOTE: Half-wave transformers are not 
recommended with this igniter.

Fives North American Combustion, Inc. 

4455 East 71st Street - Cleveland, OH 44105 - USA

www.fi vesgroup.com

CONTACT

fna.sales@fi vesgroup.com
T +1 800 626 3477 - F +1 216 373 4237