Inspecting End to End: Service Cord

One of the more expansive sub-categories of portable cord and power cable, the topic of service cord can be quite daunting at first, however it becomes quite straightforward when breaking down the meanings of each aspect of the designation. Below is a full breakdown of what each part of a service cord’s designation means:  

Deciphering the Service Cord Code:

S

“S” as in service, this designates that the product is a type of service cord.

J

“J” as in junior, while other service cords have a voltage rating of 600V, any product with “J” in the name are junior service cords and have a 300V rating.

V

“V” as in vacuum cord, this also means that the product is rated at 300 volts, however this specific rating is typically used for vacuum cleaners and other portable cleaning equipment.

T

“T” as in thermoplastic, this letter is regarding the material that the service cord’s jacket is made of.

E

“E” as in elastomer, similar to the previous entry, “E” also regards the material of the service cord’s jacket.

O

“O” as in oil-resistant jacket, meaning that the product has been rated as resistant to certain chemicals, and as such can handle certain environments where it would be exposed to such elements for a period of time

OO

“OO” / “Double O”, as in oil-resistant insulation and oil-resistant jacket. This rating means that both the outer jacket and internal insulation are rated to withstand certain chemical interactions for a period of time.

W

“W” as in weather and water resistant. As the name implies, the “W” rating means that this product is suitable to be used inside as well as outside. It is resistant to conditions such as sunlight, moisture, etc.

WA

“WA” stands for solely weather resistant and is less resilient to prolonged interactions with water than “W”. This product is still rated for use both indoors and outdoors.  

 

You can find our entire catalog of service cords, as well as our other available portable and power cords here.

With an understanding of what each letter means in the designation of service cords, the next question would be how they compare to one another:

 

Conductor

 

Insulation

 

Temperature Rating

O.D.

(18 AWG/2C)

Approx Weight lb/MFT

(18AWG/2C)

Type SJ

Stranded Copper Conductors

Rubber

-40°C to +60°C

0.291in

(7.39mm)

49

Type SJT

Stranded Copper Conductors

PVC

-20°C to +60°C (105°C)

0.293in

(7.44mm)

49

Type SO

Stranded Copper Conductors

EP Rubber

-40°C to +60°C

0.354in

(8.99mm)

72

Type SJO

Stranded Copper Conductors

EP Rubber

-35°C or 90°C

0.291in

(7.39mm)

54

Type SOW

Stranded Copper Conductors

EPDM Rubber

-50°C to 105°C

0.369in

(9.37mm)

87

Type SJOW

Stranded Copper Conductors

EPDM Rubber

-40°C to +90°C

0.307in

(7.8mm)

53

Type SOOW

Stranded Copper Conductors or Stranded Tinned Copper Conductors

TPE

-40°C to +90°C

(-50°C to 105°C for tinned copper conductors)

0.350in

(8.9mm)

67

Type SJOOW

Stranded Copper Conductors

TPE

-40ºC to 90°C

0.280in

(7.11mm)

42

Type STW

Stranded Copper Conductors

TPE

-40°C or 105°C

0.341in

(8.66mm)

59

Type SJTW

Stranded Copper Conductors

TPE

-40°C or 105°C

0.309in

(7.85mm)

*18AWG/3C*

45

*18AWG/3C*

Type STO

Stranded Copper Conductors

PVC

-40°C to +60°C

0.354in

(8.99mm)

73

Type SJTO

Stranded Copper Conductors

PVC

-40°C to +60°C

0.293in

(7.44mm)

48

Type SEOOW

Stranded Copper Conductors

TPE

-50°C to +105°C

0.342in

(8.69mm)

54

Type SJEOOW

Stranded Copper Conductors

TPE

-50°C to +105°C

0.285in

(7.24mm)

37

Type STOOW

Stranded Copper Conductors

PVC

-40ºC to +105ºC

0.35in

(8.89mm)

52

Type SJTOOW

Stranded Copper Conductors

PVC

-40ºC to 105ºC

0.285in

(7.24mm)

36

Type SV

Stranded Copper Conductors

EPDM or PVC

-40°C to 60°C

0.245in

(6.22mm)

39

Type SVT

Stranded Copper Conductors

PVC

-20°C to 60°C

0.235in

(5.97mm)

35

Type SVO

Stranded Copper Conductors

EPDM

-40°C to 90°C

0.225in

(5.72mm)

34

 

While this is certainly a lot of information to take in, the team here at Sycor is ready and willing to answer any and all remaining questions and inquiries about service cord. Reach us at [email protected] for any of your questions or inquiries about service cord!

 

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