MIL-DTL-2212K(SH)
b.
Scanning technique (direct or reflective).
c.
Scanning range (inches) and characteristic operational curve.
d. Input and output electrical characteristics. Solid-state output switches data shall include leakage current,
voltage drop, and all restrictive data.
3.16.6.6 Pushbutton switches. Pushbutton switches shall be rated for the same or higher operating voltage and
dielectric withstand voltage as the controller control circuit. The contact current make and break rating shall be
suitable for the device being controlled. Pushbutton switches shall be capable of the same tightness requirements as
the controller enclosure in which they are installed. Pushbutton switch assemblies shall be installed in the controller
and shall not fail when the controller is subjected to qualification, conformance, or in the event of first article testing
requirements.
3.16.7 Transformers.
3.16.7.1 Control circuit transformers. Control circuit transformers (see 6.8.13) shall conform to MIL-T-16315,
UL 5085-1 and UL 5085-3, or a type approved by NAVSEA as described below. Devices powered by the
transformer shall operate from Type I power and shall meet the operational requirements of this specification.
Autotransformers (see 6.8.79) shall be used only for reduced-voltage starting of motors.
a. Transformers conforming to MIL-T-16315 shall meet the requirements for Type SA transformers and be
rated at 250, 500, 1000, or 1500 volt-amperes (VA) (or higher, in multiples of 500 VA), as required for the
controller control circuit and external devices to be powered from the transformer.
b. Transformers conforming to UL 5085-1 and UL 5085-3 shall be rated as stated above and shall not fail
when installed in a motor controller that is tested in accordance with table XI.
3.16.7.2 Current transformers. Current transformers shall conform to MIL-I-1361 or IEEE C57.13. Current
transformers conforming to IEEE C57.13 shall meet the following additional requirements:
a.
The transformer shall not fail when installed in a motor controller that is tested in accordance with table XI.
b. The transformer accuracy shall not be affected when the frequency of the current being monitored is within
10 percent of the rated frequency.
3.16.8 Programmable logic controllers (PLC). When specified (see 6.2), a PLC shall be installed within the
motor controller enclosure and shall perform normal programmed functions without operator interface. The PLC
shall be in accordance with MIL-PRF-32006.
3.16.9 Variable speed drives (VSD). When specified (see 6.2), a VSD can be utilized to provide reduce voltage
motor starting capability or variable speed motor control. The VSD shall be in accordance with MIL-PRF-32168.
3.16.10 Space heaters. When specified (see 6.2), controllers and switches in watertight (see 6.8.104) or
submersible (see 6.8.83) enclosures with an enclosed volume larger than 150 cubic inches (in3) shall be provided
with space heaters to prevent condensation.
3.16.11 Indicator lights. If indicator lights are required, AC indicator lights shall conform to MIL-DTL-3661,
MIL-L-3661/65 for 450-V service and 120-V service, or shall be a type acceptable to NAVSEA. DC indicator
lights shall conform to MIL-L-3661/63 or shall be a type acceptable to NAVSEA. LED indicator lights that meet
the requirements of A-A-59781 may be utilized provided the LED indicator lights have been subjected to all
qualification requirements for the controller.
3.16.11.1 Indicating light colors. Indicating lights, when required, shall have the following colors (see 6.2):
a.
Motor running: Green
b.
Power available: White
18
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business