The BLX R300 series feedback unit allows for accurate position feedback where on-off indication (mechanical switches) or 4-20 mA Position transmitter or potentiometer is required. Combinations of switches and transmitters or potentiometers are available.

The corrosion resistant painting and sealing meet NEMA 4X as well as the sealing requirement IP66 and can be fitted with a flat or raised indicator.

The hand adjustable cams offer slack free lock in place within 3° resolution and steep switching characteristics. R300 is furnished standard with two cable entries.

Feedback unit
300 - Feedback unit for stand alone mounting

Switches
M - Mechanical switch (2 - SPDT)
R - Reed switch (2 - SPDT)
N - NamuR sensor (2 - DIN19234)

Position feedback
mA - 4-420mA Position transmitter
P1 - 1K ohm Potentiometer
P5 - 5K ohm Potentiometer.

Spindle
D1 - Namur
D2 - 1/2" square
D3 - 3/8" square
D4 - Dia 10 mm
D5 - Double D 1/2"
D6 - 11/32" square
D7 - Double D 6 mm
D8 - 2 M5 threaded holes
D9 - Namur (with dia 6 mm hole)

Front cover
90 - 90 degree
60 - 60 degree
45 - 45 degree
30 - 30 degree
0 - blank

Indicator
A - Flat arrow indicator
B - Raised indicator

Example: R300-M-mA-D1-90-B
R300 feedback unit with two SPDT mechanical switches, 4-20mA position transmitter , namur pindle and 90° front cover with raised indicator.

Examples of available models
R300-M
R300-M-mA
R300-R
R300-R-mA

Other models on request.