Edwards Signaling 391-BT GuardSwitch Catalog Page

Safety Switch

4.22''

10.72cm

3.12''

7.92cm

0.55''

1.40cm

0.11''

0.28cm

1.28''

3.25cm

0.17''

0.43cm

0.22''

0.56cm dia.

0.24''

0.61cm

3.75''

9.53cm

0.05''

0.13cm

0.80''

2.03cm

sensing face

sensing face

391-BT GuardSwitch

Actuator

391 Switch

Applications

• Machine Tool Machinery • Presses

• Withstands Corrosive and • Meets ANSI, Semi S2 &
Extreme Washdown European Safety Standard for
Environments the Highest Machine Risk

• Packaging Machinery Category 4 when used with

• Food Processing Machinery the INT Safety Relay

General Specifications

Enclosure Seamless 304 Stainless Steel
Temperature Range -40°F to 180°F (-40°C to 80°C)
Environmental Hermetically Sealed Contact Switch
Encapsulated in P
NEMA Rating 1, 2, 4, 4X, 5, 12, 12K
Protection Class IP 67
Response Time 1 msec
(individual circuits) The two circuits do not switch simultaneously
and depend on the speed of the guar
A delay less than 50 msec is typical.
Life Cycles 100,000 Under Full Load;
Up to 200,000,000 Under Dr
Lead Types/O.D. 18/4 SJTOW (K) / 0.34" (0.86cm)
22/4 P

VC Jacketed (J) / 0.19" (0.48cm)

UL/CSA/TUV All Models

olyurethane

d closure.

y Circuit

300-BT SERIES

SAFETY

Electrical Specifications

Circuit Circuit Contact Load MAX Switching MAX Switching
No. Type Config. Rating Voltage Current

1 Switch N.O. 40W/VA 48VAC/VDC 1.0ADC, 0.7AC

File E 122942 LR89176 U9880128199005
When used with INT
Safety Monitor Relay

2 Tamper N.C. 10W/VA 48VAC/VDC 0.3A
2 w/optional LED N.C. 0.1–1.4W 48VDC(3V drop) 30mA

Order Information

Part Number
Configuration Minimum Maximum Range Length

391-BT-06K DPST: 1 N.O., 1 N.C. 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 6' (1.8m)
391-BLT-12J DPST: 1 N.O., 1 N.C. w/ LED 0.3"(0.8cm) 0.6"(1.5cm) 1.2"(3.0cm) 12' (3.6m)

Warning— Each electrical rating is an individual maximum and cannot be exceeded!

1

Configuration with actuator away from the switch

2

Proximity of ferrous materials usually reduces sense range — typically by 50%. The shape and type of material cause a wide diversity of effects. Testing is required to determine actual sense

range for specific applications.

Contact

1

Sense Range2 Sense Range2 Break Lead