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MIL-C-55021 | NEMA WC 55021

MIL-C-55021 Wire (M55021 Wire)
MIL Spec Wire

NEMA WC 55021

MIL-C-55021 MIL Spec Wire Applications:

The MIL-DTL-55021C covers electrical cables consisting of unshielded and unjacketed, shielded, jacketed, or shielded and jacketed twisted pairs and triples, and shielded or shielded and jacketed singles. The cable is intended for internal wiring of electrical equipment for applications of -40°C to +105°C for M55021/1 since the inners could be Type B, C, D or BJ, CJ or DJ and -55°C to +200°C for M55021/2 since the wire type could be Type E or EE. Cables constructed with PVC insulation or jackets are not to be used in aerospace applications.

M55021 Cable Make Up

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Length (ft.):
Part Number

Section 1: Wire Type

Letter Wire Specification Temperature Rating
B NEMA HP 7 (PVC)* -40°C to 105°C (TPC)
BN NEMA HP 7 (PVC/POLYAMIDE) * -40°C to 105°C (TPC)
C NEMA HP 7 (PVC)* -40°C to 105°C (TPC)
CN NEMA HP 7 (PVC/POLYAMIDE)* -40°C to 105°C (TPC)
D NEMA HP 7 (PVC) * -40°C to 105°C (TPC)
DN NEMA HP 7 (PVC/POLYAMIDE)* -40°C to 105°C (TPC)
E NEMA HP 3 (PTFE) -65°C to 200°C (SPC) / 260°C (NPC)
EE NEMA HP 3 (PTFE) -65°C to 200°C (SPC) / 260°C (NPC)
J NEMA HP 7 (PE) -40°C to 75°C (TPC)
K NEMA HP 4 (FEP) -65°C to 200°C (SPC)
KK NEMA HP 4 (FEP) -65°C to 200°C (SPC)
L NEMA HP 5 (XLPE) -65°C to 125°C (TPC)
LL NEMA HP 5 (XLPE) -65°C to 125°C (TPC)
LS NEMA HP 8 (XLPO) -65°C to 125°C (TPC)
LX NEMA HP 5 (XLPE) -65°C to 125°C (TPC)
S NEMA HP 6 (SILICONE) -65°C to 150°C (TPC) 200°C (SPC)
SS NEMA HP 6 (SILICONE) -65°C to 150°C (TPC) 200°C (SPC)
SSB NEMA HP 6 (SILICONE/GLASS) -65°C to 150°C (TPC) 200°C (SPC)
ZH NEMA HP 8 (ZH-POLYOLEFIN) -65°C to 125°C (TPC)
ZHDM NEMA HP 8 (ZH-POLYOLEFIN) -65°C to 125°C (TPC)
ZHDH NEMA HP 8 (ZH-POLYOLEFIN) -65°C to 125°C (TPC)
ZHS NEMA HP 6 (ZH-SILICONE) -65°C to 150°C (TPC) 200°C (SPC)
ZHSS NEMA HP 6 (ZH SILICONE) -65°C to 150°C (TPC) 200°C (SPC)
ZHX NEMA HP 8 (POLYOLEFIN) -65°C to 125°C (TPC)

Please Note: *PVC insulated wire can not be used for Aerospace Applications

 

Section 2: Conductor Size

Conductor Size Stranding
26 AWG - 30 AWG 7 Strands
12 AWG - 24 AWG 19 Strands
10 AWG 37 Strands

 

Section 3: Conductor Material and Stranding

Letter Conductor Material and Stranding Type Max Temperature Limit for Shield Material Only
NC Nickel Coated Copper Standard Stranding (Table 1) 260°C
NS Nickel Coated Copper Clad Steel (Table 1) 260°C
NH Nickel Coated High Strength Alloy (Table 1) 260°C
NFC Nickel Coated Copper Flexible Stranding (Table 2) 260°C
NFS Nickel COated Copper Clad Steel Flexible Stranding (Table 2) 260°C
NFH Nickel Coated High Strength Alloy (Table 2) 260°C
SC Silver Coated Copper Standard Stranding (Table 1) 200°C
SS Silver Coated Copper Clad Steel (Table 1) 200°C
SH Silver Coated High Strength Alloy (Table 1) 200°C
SFC Silver Coated Copper Flexible Stranding (Table 2) 200°C
SFS Silver Coated Copper Clad Steel Flexible Stranding (Table 2) 200°C
SFH Silver Coated High Strength Alloy Flexible Stranding (Table 2) 200°C
TC Tin Coated Copper Standard Stranding (Table 2) 150°C
TS Tin Coated Copper Clad Steel (Table 1) 150°C
TFC Tin Coated Copper Flexible Stranding (Table 2) 150°C
TFS Tin Coated Copper Clad Steel Flexible Stranding (Table 2) 150°C

Section 3, Table 1: Standar