FD535 IMO PRECISION CONTROLS, FD535 Datasheet - Page 7

• Manufacturer Part Number: FD535
• Description: LIMIT SWITCH, ADJ ROLLER LEVER
• Manufacturer: IMO PRECISION CONTROLS

Specifications of FD535

• Contact Voltage Ac Max: 500V
• Contact Voltage Dc Max: 250V
• Contact Current Ac Max: 6A
• Contact Current Dc Max: 6A
• Switch Terminals: Screw
• Svhc: No SVHC (15-Dec-2010)
• Actuator Type: Adjustable Roller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FD/FP/FL
Actuator type 40
Dual roller lever with two stable free
positions
Specify lever type:
Actuator type 53
Porcelain roller lever
OF
PT
OT
MD
OP
OS
Note: Lever position adjustable over 360˚ in
10˚ increments
The following is a glossary of terms in
specifying actuator characteristics:
Operating force (OF)
The force applied to the actuator
required to operate the switch contacts.
Releasing force (RF)
The value to which the force on the
actuator must be reduced to allow the
contacts to return to the normal
position.
Total force (TF)
The force applied to the actuator
required to reach the stopper from the
free position.
Double track (shown above) L42
Single track (not shown) L41
Steel rod lever L43
Standard actuator options – FL series
Glossary
615gcm
30˚
45˚
14˚
–
–
Free position (FP)
The initial position of the actuator when
there is no external force applied.
Operating position (OP)
The position of the actuator at which
the contacts snap to the operated
contact position measured with respect
to the centres of the mounting holes.
Releasing position (RP)
The position of the actuator at which the
contacts snap from the operated contact
position to their normal position.
Total travel position (TTP)
The position of the actuator when it
reaches the limit of travel – must not be
exceeded.
Actuator type 76
Rope
OF
PT
OT
MD
OP
OS
Note: Not suitable for safety circuits. For
rope operated safety switches, see Safety
Limit Switches data sheet on page 217
Actuator type 51
Roller lever with large offset
OF
PT
OT
MD
OP
OS
Notes: 1. ø20mm plastic roller as standard,
ø20mm metal roller actuator part no.: 511.
2. Lever position adjustable over 360˚ in 10˚
increments
2450g
1.8mm
6.4mm
1mm
66.8mm
–
920gcm
30˚
45˚
14˚
–
1.5m/s using a 30˚ cam
Pretravel (PT)
The distance or angle through which
the actuator moves from the free
position to the operating position.
Overtravel (OT)
The distance or angle of the actuator
movement beyond the operating
position.
Movement differential (MD)
The distance or angle from the
operating position to the releasing
position.
Total travel (TT)
The sum of the pretravel and overtravel
expressed by distance or angle.
Actuator type 52
Roller lever without offset
OF
PT
OT
MD
OP
OS
Notes: 1. ø20mm plastic roller as standard,
ø20mm metal roller actuator part no.: 521;
ø35mm plastic roller actuator part no.: 522;
ø50mm rubber roller actuator part no.:523.
2. Lever position adjustable over 360˚ in 10˚
increments
920gcm
30˚
45˚
14˚
–
1.5m/s using a 30˚ cam
FP
TTP
OP
OF
PT
OP
Operate
PP
OT
PT
MD
RF
MD
PT
TTP
MD
Release
TT
AP
OP
RP TT
TTP
RF TF