SL1026 Datasheet, PDF (1/1 Pages) Littelfuse – New Improved Littelfuse 1026 maximum duty arrester series

New Improved Littelfuse 1026 maximum duty arrester series
55 KILO AMPS CAPABILITY. (SINGLE SHOT)
40 KILO AMPS CAPABILITY. REPETITIVE
LITTELFUSE MAXIMUM DUTY 3 TERMINAL ARRESTER
TOTALLY NON-RADIOACTIVE, UL RECOGNISED
ELECTRICAL CHARACTERISTICS
DC sparkover
Impulse sparkover (max)
Alternating discharge current
Impulse discharge current
Insulation resistance
Capacitance (max)
Holdover
Gap to gap transfer time
Voltage colour code
Type colour code
Impulse discharge current
Single shot
(V)
(V)
(A)
(KA)
(Ω)
(pF)
(V)
(ns)
275V
200-350
800
40
40
2 x 10
2.5
150
100
BLACK
BLACK
400V 700V
300-500 490-910 (i)
900
1000 (ii)
40
40 (iii)
40
40 (iv)
2 x 10 2 x 10 (v)
2.5
2.5 (vi)
150
150 (vii)
100
100 (viii)
YELLOW RED
BLACK BLACK
KA
55
55
55
(i) End to centre or end to end, measured using a rate of rise of voltage of 100V/s.
(ii) End to centre, measured using a rate of rise of voltage of 1KV/µsec.
(iii) Measured at 1 sec duration, 5 shots @ 3 min intervals, 50Hz.
(iv) Measured at 8/20µsec, 5 shots each polarity between one end and centre.
(v) Measured at ± 100V dc.
(vi) Measured at 1 MHz, end to centre.
(vii) Measured using test based on ITU (formally CCITT) K12, section 4.2, test
3, with PS2 set to 0V & PS1 variable.
(viii) Measured using a voltage rising at 1kV/µs (relative to the centre electrode)
applied simultaneously to both end electrodes via separate 1k resistors.
These devices are designed so that the failure mode is most likely to be open circuit
rather than short-circuit. They may be used as a replacement for the 16 series (now
obsolete) to handle higher a.c. fault currents.
a
b
e
3 ELECTRODE GDT
a=TIP
b=RING
e=GROUND
(centre electrode)
GRAPHICAL SYMBOL
All dimensions in mm
www.littelfuse.com
ORDERING INFORMATION
SL 1026 –
Voltage
75