Proximity Sensors
977 Series
Modular Harsh Duty Limit Switch Style Sensor
3, 4-Wire DC, 3, 4-Wire AC Types
B54
Honeywell MICRO SWITCH Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
FEATURES
Modular design – interchangeable
heads and bases
Top or side sensing, shielded or
unshielded heads
Three wiring options
– Screw terminal
– Prewired cable
– 5-pin quick-connect
Three base options
– Plug-in
– Mini
– Relay
UL listed, CSA approved
Eight output options
– 3-wire AC (mechanical relay)
– 3-wire DC (mechanical relay)
– 4-wire AC (solid state relay)
– 4-wire AC (FET)
– 3-wire DC (PNP single output)
– 3-wire DC (NPN single output)
– 4-wire DC (NPN dual output)
– 4-wire DC (1 NPN, 1 PNP output)
LED output indicator
Designed to meet NEMA 4 sealing,
meets washdown criteria
All metals sensitive
Uses same bases as standard MP
photoelectric sensors
ORDER GUIDE, HEAD ONLY
Description
Catalog Listing
Top Sensing, shielded, 12,7 mm sensing distance
977TO1
Top Sensing, unshielded, 14,5 mm sensing distance
977TO2
Side Sensing, shielded, 12,7 mm sensing distance
977SO1
Side Sensing, unshielded, 14,5 mm sensing distance
977SO2
SPECIFICATIONS – SENSOR HEADS
Sensor type
Shielded, Top or Side
Unshielded, Top or Side
Sensing distance
12,7 mm (.50 in.)
14,5 mm (.57 in.)
Leakage current
10A at 16 V
Supply voltage
6-16 VDC
Voltage drop
0.4 V max. @ 5 mA
Load current
10 mA max.
Repeatability
±1%
Hysteresis
2-15% of sensing distance
Temperature range
–30 to +70°C (–22 to 158°F)
Protection class
NEMA 1, 3, 4, 12, 13
Circuit protection
False pulse, incorrect wiring
Sensor material
Glass filled thermoplastic polyester, cadmium plated mounting screws
Vibration
Double amplitude of 1,5 mm and frequency of 10 to 50 Hz applied to each
direction of X, Y, Z for 2 hours
Shock
Shock of 50 G applied each direction of X, Y, Z 10 times
FOR A COMPLETE SENSOR:
1. Sensing head
2. Base—3 options
— Plug-in base and receptacle. Page B55
— Mini base (preleaded or connector). Page B57
— Relay base. Page B59
Terminal style
Mini base (preleaded or connector).
MOUNTING DIMENSIONS,
SENSING HEAD
(For reference only)
Top
Side