MRF112-A NKK [Nihon Kaiheiki Industry Co. Ltd.], MRF112-A Datasheet

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MRF112-A

Manufacturer Part Number
MRF112-A
Description
Half-Inch Diameter Process Sealed Rotaries
Manufacturer
NKK [Nihon Kaiheiki Industry Co. Ltd.]
Datasheet
Series MR
Half-Inch Diameter Process Sealed Rotaries
Distinctive Characteristics
Low profile body of MRF model accommodates space limitations
required for PCB mounting. For the MRA and MRK bushing
mount models, the range of behind panel body depths is .323”
to .669” (8.2mm to 17.0mm).
Positive detent mechanism for distinct feel and audible feedback.
Metal bushing and housing construction increases durability.
Adjustable stopper plate allows 2–12 position settings.
High contact reliability achieved by the self-cleaning
contact mechanism.
Break-before-make contact timing with sliding contacts in
MRA and rotary contactor disk in MRF and MRK models.
Interior housing seal and molded-in PC terminals, plus shaft
rubber o-ring on MRF and MRK and polyamide cover on MRF
model, allow cleaning after automated soldering.
Exterior rubber washer and double flatted bushing on MRA and MRK
give protection in splashproof applications.
Actual Size
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08

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MRF112-A Summary of contents

Page 1

Half-Inch Diameter Process Sealed Rotaries Distinctive Characteristics Low profile body of MRF model accommodates space limitations required for PCB mounting. For the MRA and MRK bushing mount models, the range of behind panel body depths is .323” to .669” (8.2mm ...

Page 2

Half-Inch Diameter Process Sealed Rotaries General Specifications Electrical Capacity (Resistive Load) For MRA: 250mA @ 125V AC For MRF or MRK: 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) Note: Find additional explanation ...

Page 3

Half-Inch Diameter Process Sealed Rotaries TYPICAL SWITCH ORDERING EXAMPLE MR A ACTUATORS & TERMINALS A Shaft Actuated with PC Terminals Low Profile Screwdriver Actuated F with PC Terminals Low Profile Shaft Actuated with K PC Terminals DESCRIPTION FOR TYPICAL ORDERING ...

Page 4

... Half-Inch Diameter Process Sealed Rotaries Pole Model Number of Positions MRA112 2–12 MRF112 SP 2–12 MRK112 2–12 MRA206 2–6 DP MRF206 2–6 MRK206 2–6 MRA403 2–3 4P MRF403 2–3 MRK403 2–3 POSITION SETTING FOR MRA, MRF, & MRK MODELS Each switch is supplied with the stopper set for the maximum number of positions allowed for that model. Prior to installation, the desired position setting should be made ...

Page 5

... Dia .323 .138 .496 (0.25) Typ M6 P0.75 .010 (12.0) Dia .472 (2.3) .091 (0.5) Typ .020 (10.0) (5.5) (10.1) (3.5) .394 .217 .398 .138 FOOTPRINTS Four Pole Single Pole MRA403 MRF112 MRK112 (0.8) Dia Typ (3.0) Typ .031 .118 (9.5) Dia C 1 .374 ...

Page 6

Half-Inch Diameter Process Sealed Rotaries AT433 A Plain Black Material: Polyacetal (19.0) Dia .748 (11.0) Dia Color: .433 Black only (13.0) (9.5) .512 .374 (0.5) .020 A B Color Codes: Black PANEL CUTOUTS & MAXIMUM EFFECTIVE PANEL THICKNESS Nonsealed Panel ...

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