Datasheet

Technical Data
The housing of this switch consists
of a single part bag housing which
is closed at its end by resin
(Q8 housing type); this makes the
switch mould-proof. This mould-
proof switch may thus also be used
in "tough" environments subject
to the detrimental influences
of humidity or dirt. Alternative
housing types: unsealed version
(Q5) or plate bar version (Q1).
All housing types are voltage-free.
Due to its constructional size the Q
switch is one of the most compact
thermostats available. This ensures
a very fast response rate.
Its rectangular homogenous con-
structional size provides excellent
thermal conduction characteristics.
The housing is resistant against
temperatures (permanent tem-
perature: 160°C), with a temporary
increase in temperature up to
200°C max. being permissible for
a short period only.
The standard version is equipped
with 100 mm long (length of
stripped isolation: 10 mm)
insulated leads or wire connection
(AWG 24).
Special leads or wire (larger diame-
ter to AWG 22) or different lengths
available on request.
Technical Specifications Temperature Limiter Q
Type reference Q switch
Example for type reference:
Q 8 2 - Z - 125 - 05 - 100
thermal switch with
electrical self-holding function
insulated lead (standard AWG 24)
holding resistor 30 kΩ
125°C cut-off temperature
tolerance ±5 K
100 mm lead length
(10 mm stripped length)
nom. breaking capacity:
min. current:
max. breaking capacity:
switching temperature:
type of action:
max. ambient temperature:
holding resistor:
approvals:
250 V; 2,5 (1,0) A / 60 Hz
5 V / 20 mA
2,5 A cos Φ 1,00 / 250 V, 150°C, 3000 cycles
3,0 A cos Φ 0,45 / 230 V, 135°C, 3000 cycles
4,0 A cos Φ 0,45 / 230 V, 135°C, 2000 cycles
6,5 A cos Φ 1,00 / 120 V, 120°C, 100 cycles
40°C – 120°C (150°C), ±5 K
1.C (3000 cycles)
2.C (max. drift ±5 K)
160°C
0,1 kΩ - 60 kΩ,
take note of safety instruction*
VDE (EN 60730), UL, (2111) conform to RoHS
Dimensions Q8
Q 8 X-X-XXX-XX-XXX
Length of leads/wires
Standard = 100 mm
temperature tolerance in K
(+/- 5/10 K)
Cut-off temperature in °C
40,45,50,...150°C
self-holding resistor
Connection type:
2 = insulated leads
3 = insulated wires
•
•
•
8 = sealed housing
Accessories
Mounting brackets
Mounting clips
alternativ:
Q5 housing type:
L 4,0 x W 8,0 x H 16,0
Q1 housing type:
L 3,5 x W 7,0 x H 15,0
Limitor GmbH
Dieselstrasse 22
D-73660 Urbach
Phone [phone]
Fax [phone]
[e-mail]
www.limitor.de
manufactured: 10.01.2007 subject to change
Temperature, Current, Time under Control
*Safety Instruction
Adjusting right hold resistor value on its
final assembling position under real heat
conduction, otherwise risk of overheating!
(table-sheet selfhold resistor value)