MIL-DTL-2212K(SH)
3.16.12 Fuses and fuseholders. Fuses shall conform to Style F60 of MIL-PRF-15160 and MIL-PRF-15160/60.
Existing controller designs may continue use of Style F61 fuses of MIL-PRF-15160/61. Fuseholders and associated
clips shall be in accordance with A-A-55507, A-A-55507/1, A-A-55518/2, A-A-55518/3, A-A-55518/4, and
UL 4248-15; all fuse clips shall be copper-clad steel type (material designation F) or silver-plated beryllium copper
type (material designation N). The fuse type designation specified in MIL-PRF-15160 shall be permanently marked
adjacent to each fuse block or fuseholder when space permits; otherwise, it shall be permanently marked in a
conspicuous location.
3.16.13 Resistors and rheostats. Resistors and rheostats shall be in accordance with MIL-DTL-15109.
3.16.14 Controller characteristics. The following characteristics of controllers shall be as specified (see 6.2).
Single-phase operation shall be accomplished utilizing three-phase controller.
a.
Voltage rating: (see 6.2)
115 VAC, three-phase
440 VAC, three-phase
115 VDC
230 VDC
250 VDC (nominal) range 180 to 355 V, submarine service
b. Current rating: Current rating shall be as required by the applicable motor size specified in 3.16.15
(see 6.2).
c.
Magnetic controllers: (see 6.2)
Type: Across-the-line (see 6.8.1)
(1) single-speed
(2) multi-speed
Reduced voltage: Autotransformer
Primary resistor (see 6.8.82)
Primary reactor (see 6.8.81)
Resistor (DC)
Wye delta
Protection: LVP
LVR
Overload relay
Temperature sensor actuated
Function: Motor starting
Motor starting and reversing
Motor starting and speed regulation
Motor starting and speed selection
Motor starting, reversing, and speed selection
Miscellaneous
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