CE70.00.EM CAMDEN, CE70.00.EM Datasheet - Page 3

• Manufacturer Part Number: CE70.00.EM
• Description: SWITCH, LIMIT, WIRED, ROL LVR
• Manufacturer: CAMDEN

Specifications of CE70.00.EM

• Operating Force Max: 10N
• Contact Voltage Ac Max: 400V
• Contact Voltage Dc Max: 250V
• Contact Current Ac Max: 5A
• Contact Current Dc Max: 1.1A
• Switch Terminals: Lead
• Svhc: No SVHC (18-Jun-2010)
• Actuator: RoHS Compliant

LIMIT SWITCHES
Plastic or Metal Casing
Terminolgy
Double Insulation
Class II materials, according to IEC 536, are designed with double insulation. This measure consists in doubling the functional insulation with an additional layer
of insulation so as to eliminate the risk of electric shock and thus not having to protect elsewhere. No conductive part of "double insulated" material should be
connected to a protective conductor.
Positive Opening Operation
A control switch, with one or more break-contact elements, has a positive opening operation when the switch actuator ensures full contact opening of the break-
contact. For the part of travel that separates the contacts, there must be a positive drive, with no resilient member (e.g. springs), between the moving contacts
and the point of the actuator to which the actuating force is applied.
The positive opening operation does not deal with N.O. contacts.
Control switches with positive opening operation may be provided with either snap action or slow action contact elements. To use several contacts on the same
control switch with positive opening operation, they must be electrically separated from each other, if not, only one may be used.
Every control switch with positive opening operation must be indelibly marked on the outside with the symbol:
Snap Action
Snap action contacts are characterised by a release position that is distinct from the operating position (di erential travel). Snap breaking of moving contacts is
independent of the switch actuator's speed and contributes to regular electric performance even for slow switch actuator speeds
Slow Action
Slow action contacts are characterised by a release position that is the same as the operating position. The switch actuator's speed directly conditions the travel
speed of contacts.
Contact shape according to IEC 947-5-1.
Change-over contact elements with 4 terminals must be indelibly marked with the corresponding Za or Zb symbol as in the diagrams below.
Utilization Category
AC-15: switching of electromagnetic loads of electromagnets using an alternating current ( 72 VA).
DC-13: switching of electromagnets using a direct current.
Terminals
Limit switches with metal casings must have a terminal, for a protective conductor, that is placed inside the casing very close to the cable inlet and must be inde-
libly marked.
Minimum Actuation Force/Torque
The minimum amount of force/torque that is to be applied to the switch actuator to produce a change in contact position.
Minimum Force/Torque to achieve Positive Opening Operation
The minimum amount of force/torque that is to be applied to the switch actuator to ensure positive opening operation of the N.C . contact.
Contacts with the same polarity
13
14
11
12
Za
V
The 2 moving contacts are electrically separated
.
.
13
14
21
22
Zb