MRB12B-A NKK Switches, MRB12B-A Datasheet - Page 3

• Manufacturer Part Number: MRB12B-A
• Description: SW ROTARY SPDT STR KNOB BLACK
• Manufacturer: NKK Switches
• Series: MRBr
• Type: Miniature PCB Process Sealed Rotariesr

Specifications of MRB12B-A

• Number Of Positions: 2
• Number Of Decks: 1
• Number Of Poles Per Deck: 1
• Circuit Per Deck: SPDT
• Contact Rating @ Voltage: 0.4VA @ 28VAC/DC
• Actuator Type: Knob
• Mounting Type: Panel, PCB Through Hole
• Termination Style: PC Pin
• Orientation: Vertical
• Angle Of Throw: 90°
• Index Angle: 90 deg
• Contact Style: Non Shorting
• Contact Form: SPDT
• Color: Black
• Contact Material: Brass
• Contact Plating: Tin
• Dielectric Strength: 500 VoltsAC
• Voltage Rating: 28 VoltsAC/DC
• Current Rating: 0.4 Volt-Amp at 28 VoltsAC/DC
• Actuator: Shaft Actuated, with Knob
• Cap Color: Black
• Contact Rating: 0.4 Volt-Amp at 28 VoltsAC/DC
• Switch Function: ON - NONE - ON
• Voltage Rating Ac: 28 Volts
• Voltage Rating Dc: 28 Volts
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

G
Series MRB
G30
Pole
DP
SP
1
2
B
Poles
MRB
SPDT
SP3T
DPDT
DP3T
MRB12
MRB14
MRB22
MRB24
2
4
Model
Straight PC Terminals
with Bracket
Circuits & Indexing
ON
ON
NONE
Position 1
ON
ON
ON
ON
ON
SPDT
Actuator Positions
ON
ON
Position 2
1
NONE
NONE
H
ON-NONE-ON Circuit
B
90°
45°
ON
ON
TYPICAL SWITCH ORDERING EXAMPLE
Straight with Bracket
Right Angle with Bracket
Plain Black Knob
& 90° Indexing
Terminals
Position 3
SPDT with
ON
ON
ON
ON
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
POLES & CIRCUITS
www.nkk.com
2
TERMINALS
C1-1 C2-4
C1-1 C2-4 C1-2 C2-5 C1-3 C2-6
Position 1
C1-1
C1-1
Connected Terminals
H
MRB12B-A
Miniature PCB Process Sealed Rotaries
Position 2
B
Right Angle PC Terminals
with Bracket
OPEN
OPEN
C1-2
A
C
B
Plain Black
Small Color Tipped
Large Color Tipped
Knobs
C1-2 C2-5
Position 3
C1-2
C1-3
DPDT
Straight PC Terminals
with Bracket
A
Note: Terminal numbers
are not actually on switch
SPDT
SP3T
DPDT
DP3T
Throw & Schematics
For Color Tipped
Code
For Plain Knob
No
A
G
H
B
C
E
F
1
1 2 3 4 5 6
Colors
C 1
C 1
1
1 2 3
2
C 1
C 1
Black
Black
White
Red
Yellow
Green
Blue
Gray
2
4
C 2
C 2
5