MICRO SWITCH Magnetically Actuated Non-Contact
Safety Switches, FF2 and FF3 Series

004748Issue 3Datasheet
FEATURES• Tough ABS threaded plastic housing in a Ø18 mm orØ 30 mm for switch and actuator• Option of one or two safety contacts (normally closed whentarget is present)• Optional auxiliary monitoring contact (normally closed whentarget is not sensed)• CE and UL508 Certifications

POTENTIAL APPLICATIONSDESCRIPTION
The FF2 Series and FF3 Series are magnetically actuatednon-contact safety switches incorporated into a threaded
plastic housing for use in machine guarding applications.
These Series of switches provide a preferred solution where
misalignment between guards, gates, or doors can occur
and locking of the guard, gate, or door is not required. The
FF2 Series is designed with an 18 mm threaded diameterplastic housing while the FF3 Series has a 30 mm threaded
diameter plastic housing. The threaded magnetic actuator ofrespective size (18 mm or 30 mm) and hex mounting hardware
are included with each switch. The FF2 and FF3 Series are
certified to CE and UL. The switches and actuators are sealed
to IP67 for wet or dusty environments.

VALUE TO CUSTOMERS• Non-contact sensing minimizes installation and set-up time• Ø18 mm or Ø30 mm mounting for switch and actuator
simplifies installation• Cable with color coded individual wire leads integral toswitch reduces installation• Target can approach switch from head-on, slide by, or
rotational/hinge for flexible installation

Sensing and Internet of Things• Equipment and machinery guards• Can forming and filling (aluminum, steel, and plastic)• Pick-and-place packaging equipment• Pick-and-place assembly equipment• Plastic molding equipment• Printing machinery• Semiconductor equipment• Textile machinery• Woodworking machinery

DIFFERENTIATION• Non-contact sensing, requires no mechanical linkage toactuate switch• Threaded housing for switch and actuator for ease ofinstallation• Choice of one or two safety contacts to close when actuated• Optional auxiliary contact closes when actuator moves outof the operating range

PORTFOLIO
Honeywell offers a wide range of FF Series magneticallyactuated non-contact switches as well as other noninterlocking safety switches which include the GSS Series
electromechanical limit switches, and the cable/rope pullswitches (1CPS Series single head and 2CPS Series dualhead). Honeywell safety interlocking switches include themetal housing EN50041 GK Series, metal housing solenoid
GKL/R Series, miniature plastic housing GKM Series, EN50047
plastic housing GKE Series, and plastic housing GKN Series.

Magntically Actuated Non-Contact Safety Switches, FF2 and FF3 Series
Table 1. Performance Specifications
CharacteristicContact
arrangement
Contact rating(safety contact)
Sensing distance*(safety contact)
Close/drop-out/
bounce(safety contact)
Contact rating(aux. contact)
Sensing distance*(aux. contact)
Close/drop-out/
bounce(aux. contact)
Internal fuse**
External fuse **(customersupplied)
Environmental seal
ratingVibration/shock
Operatingtemperature
Housing material
Mounting &alignment
Agencycertifications

ParameterFF2-10-AC (Ø18)
FF2-11-AC (Ø18)

FF2-10-DC (Ø18)
FF2-11-DC (Ø18)

FF3-20-AC (Ø30)
FF3-21-AC (Ø30)

FF3-20-DC (Ø30)
FF3-21-DC (Ø30)

1NC (FF2-10-AC)
1NC/1NO (FF2-11-AC)

1NC (FF2-10-DC)
1NC/1NO (FF2-11-DC)

2NC (FF3-20-AC)
2NC/1NO (FF3-21-AC)

2NC (FF3-20-AC)
2NC/1NO (FF3-21-AC)

2 A @ 230 Vac

1 A ind./res. @ 30 Vdc

2 A @ 230 Vac

1 A ind./res. @ 30 Vdc

10 mm [0.4 in] ON
30 mm [1.18 in] OFF

10 mm [0.4 in] ON
30 mm [1.18 in] OFF

10 mm [0.4 in] ON
35 mm [1.38 in] OFF

10 mm [0.4 in] ON
35 mm [1.38 in] OFF

3 ms/2.1 ms/0.7 ms

3 ms/2.1 ms/0.7 ms

3 ms/2.1 ms/0.7 ms

3 ms/2.1 ms/0.7 ms

15 W/10 VA

15 W/10 VA

15 W/10 VA

15 W/10 VA

7 mm [0.28 in] OFF
14 mm [0.55 in] ON

7 mm [0.28 in] OFF
14 mm [0.55 in] ON

7 mm [0.28 in] OFF
20 mm [0.79 in] ON

7 mm [0.28 in] OFF
20 mm [0.79 in] ON

0.5 ms/0.3 ms/0.7 ms

0.5 ms/0.3 ms/0.7 ms

0.5 ms/0.3 ms/0.7 ms

0.5 ms/0.3 ms/0.7 ms

ac: 2 A fast acting

dc: 1 A fast acting

ac: 2 A fast acting

dc: 1 A fast acting

ac: 1.6 A fast acting

dc: 0.8 A fast acting

ac: 1.6 A fast acting

dc: 0.8 A fast acting

IP67

IP67

IP67

IP67

50 Hz to 100 Hz/10g-10°C to 55°C
[14°F to 131°F]
ABS resin filled
Actuator & switch concentric when safety contact
actuated

50 Hz to 100 Hz/10g-10°C to 55°C
[14°F to 131°F]
ABS resin filled
Actuator & switch concentric when safety contact
actuated

50 Hz to 100 Hz/10g-10°C to 55°C
[14°F to 131°F]
ABS resin filled
Actuator & switch concentric when safety contact
actuated

50 Hz to 100 Hz/10g-10°C to 55°C
[14°F to 131°F]
ABS resin filled
Actuator & switch concentric when safety contact
actuated

CE and UL

CE and UL

CE and UL

CE and UL*Sensing distance is from surface of switch to surface of magnetic actuator.
**All safety contacts should be fused externally as the internal fuse is not resettable.

Table 2. Connections
FF2-10FF3-20FF2-11

FF3-21

2 sensing.honeywell.com

Magntically Actuated Non-Contact Safety Switches, FF2 and FF3 Series
Table 3. Contacts
FF2FF3

NOTE: Contact configurations shown under closed condition for guard device. Actuator has energized switch contacts, as show.

Table 4. Order GuideCatalog Listing

Description

FF2-10-AC-03

Safety switch, Ø18 mm [0.71 in] 1NC, ac, 3 m pre-wired

FF2-11-AC-03

Safety switch, Ø18 mm [0.71 in] 1NC/1NO, ac, 3 m pre-wired

FF2-10-DC-03

Safety switch, Ø18 mm [0.71 in] 1NC, dc, 3 m pre-wired

FF2-11-DC-03

Safety switch, Ø18 mm [0.71 in] 1NC/1NO, dc, 3 m pre-wired

FF3-20-AC-03

Safety switch, Ø30 mm [1.18 in] 2NC, ac, 3 m pre-wired

FF3-21-AC-03

Safety switch, Ø30 mm [1.18 in] 2NC/1NO, ac, 3 m pre-wired

FF3-20-DC-03

Safety switch, Ø30 mm [1.18 in] 2NC, dc, 3 m pre-wired

FF3-21-DC-03

Safety switch, Ø30 mm [1.18 in] 2NC/1NO, dc, 3 m pre-wired

Figure 1. Product Dimensions

Sensing and Internet of Things

3m WARNING

ADDITIONAL MATERIALSThe following associated literature is available on the Honeywell
web site at sensing.honeywell.com:• Product installation instructions• Product range guide

IMPROPER INSTALLATION••

Consult with local safety agencies and their requirements
when designing a machine-control link, interface and allcontrol elements that affect safety.
Strictly adhere to all installation instructions.

Failure to comply with these instructions could result indeath or serious injury.

m WARNINGMISUSE OF DOCUMENTATION••

The information presented in this product sheet is forreference only. Do not use this document as a productinstallation guide.
Complete installation, operation, and maintenanceinformation is provided in the instructions supplied witheach product.

Failure to comply with these instructions could result indeath or serious injury.

Warranty/Remedy

Find out more
Honeywell serves its customers
through a worldwide networkof sales offices, representatives
and distributors. For application assistance, current specifications, pricing or name of thenearest Authorized Distributor,
contact your local sales office.
To learn more about Honeywell’s sensing and control
products,
call +1-815-235-6847 or

Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty
applies unless agreed to otherwise by Honeywell in writing;please refer to your order acknowledgment or consult yourlocal sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge
those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of allother warranties, expressed or implied, including those ofmerchantability and fitness for a particular purpose. In noevent shall Honeywell be liable for consequential, special,or indirect damages.
While Honeywell may provide application assistance personally,through our literature and the Honeywell web site, it is buyer’ssole responsibility to determine the suitability of the product inthe application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this writing.
However, Honeywell assumes no responsibility for its use.

1-800-537-6945,
visit sensing.honeywell.com,
or e-mail inquiries toinfo.sc@honeywell.com

Honeywell Sensing and Internet of Things
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Fort Mill, SC 29707
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004748-3-EN IL50 GLO
January 2017
© 2017 Honeywell International Inc. All rights reserved.