Combustion Catalog | Fives North American

Sheet 4085 Page 4


EXPLOSION RESISTANT ASSEMBLY (ERA) cables are intended for use in systems that require sealed ignition wiring (Class 1 Div. 2 applications). They feature sealed aircraft type ignition cable construction with a ¾“ - 20 threaded connection, and flexible stainless steel conduit. Any of the standard North American transformer secondary connection types can be configured for connection to an ignition transformer. Although the wiring method used between the ignition transformer and the spark plug was designed and chosen to be suitable for use in Class 1 Div. 2 hazardous locations, it DOES NOT carry certifications or third party approvals. 4085-ERA cables connect to North American ERA igniters and other spark igniters with the standard ¾“ - 20 threaded connec- tion and 1 ½ " deep contact connection. See Sheet 4055 and 4051 for details and additional sizes of ERA Igniters. To order a standard 4085-ERA cable use the format below. 4085-ERA cables can also be custom configured, contact North American for details.

1 ½ "

4055-X-ERA Igniter

4055-D-ERA Igniter

The maximum operating temperature is 482°F (250°C).

4051-C-ERA Igniter

Free Length (inches)

Conduit Length (feet)

Transformer Secondary Connection

Stainless steel braided conduit with PTFE liner ¾ " - 20 threaded connection

1 ½ "

7mm Silicone cable with 16 AWG tinned copper conductor

Ceramic insulator

Spring volute (for electrical contact with spark plug)

½ " NPT fitting

Protective shipping plug

TRANSFORMER SECONDARY CONNECTION (INPUT) TYPES A = #10 Ring Tongue B = ¼ " Ring Tongue C = Standard Straight ¼ " post F = Female Right-angle ¼ " blade FS = Female Straight ¼ " blade X = No Connection


4085-ERA -



Length of Conduit (in Feet)

Standard lengths = 5, 10, 15, 20, 25

Ignition cable free lenght (in inches) Standard lengths = 6, 12, 18, 24

Transformer Secondary Connection (Input)

4085-ERA cables are available without a secondary connection and a 24" free length as: 5 ft. cable = R980-1810 10 ft. cable = R980-1811 15 ft. cable = R980-1812 20 ft. cable = R980-1813 25 ft. cable = R980-1814

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