Motor Protection Circuit Breakers - Dhruva Automation & Controls.

Accessories: Circuit Breakers KTA 3-25 and KTA 3-100
Supply blocks Type designation
KT 3-25-A2 KT 3-25-A3
Compact bus-bars
Accessories for KTA 3-100
Auxiliary switch blocks
for front mounting
u No extra space
needed
Release control switch blocks
for front mounting
u Indicates tripping of
the circuit breaker
u No extra space
needed
Technical Data KT 3-100-PF, KT 3-100-PE
u Pitch 45 mm for circuit breaker with internal
auxiliary switch block
42 g with 2 x 3 connecting ways
94 g with 4 x 3 connecting ways
119 g with 5 x 3 connecting ways
u Pitch 54 mm for circuit breaker with addedon
auxiliary switch block
45 g with 2 x3 connecting ways
104 g with 4 x 3 connecting ways
135 g with 5 x 3 connecting ways
Contact diagrams
KTA 3-100 KT 3-100-...
Rated current 230 V 400 V 500 V 690 V
AC-15 3 A 2.5 A 1.5 A 0.75 A
24 V 48 V 110 V 230 V 440 V
DC-13 2 A 0.6 A 0.2 A 0.1 A 0.04 A
Thermal rated current Ith at 40 C ambient temperature 10 A
at 60 C ambient temperature
Under-voltage release / Shunt release
6 A
for front mounting
Supply block KT 3-25-A2 Supply block KT 3-25-A3
1) Mounting possibility on top hat rail EN 50 022-35
u Integrated short
circuit indicator with
isolated signalling
KTA 3-100 KT 3-100-...
PE-20 PE02 PE-11
Sophisticated signalling:
a) Overload release
b) Short circuit release
Contact diagrams
KTA 3-100 KT 3-100-.. KTA 3-100 KT 3-100-...
UA-......V.. AA.....V.
b) Short circuit release
Technical Data KT 3-100-UA...V... KT 3-100-AA...V..
Operating voltage
Pull-in 0.8...1.1 x U s 0.7...1.1 x u s
Drop-out 0.7...0.35 x U s
Rated control voltage
min.: 12 V 50 Hz/14 V 60 Hz 12 V 50 Hz/14 V 60 Hz
max.: 600 V 50 Hz 600 V 50 Hz
PF-20 PF-02 PF1-11 PF2-11
KT 3-25-A2
KT 3-25-A3
Weight KT 3-25-A2 151 g
KT 3-25-A3 36 g
Type designation
KT 3-25-DB-45-2
KT 3-25-DB-45-4
KT 3-25-DB-45-5
KT 3-25-DB-54-2
KT 3-25-DB-54-4
KT 3-25-DB-54-5
Type designation
KT 3-100-PE-20
KT 3-100-PE-02
KT 3-100-PE-11
Type designation
KT 3-100-PF-20
KT 3-100-PF-02
KT 3-100-PF1-11
KT 3-100-PF2-11
Contact classe according NEMA AC B 600 Standard Pilot Duty
(UL / CSA-standards) DC R 300 Light Pilot Duty
Back-up fuse gl, gL 16 A
Weight 31 g
Type designation
KT 3-100-UA-24 V 50
KT 3-100-UA-110 V 50
KT 3-100-UA-220 V 50
KT 3-100-AA-24 V 50
KT 3-100-AA-110 V 50
KT 3-100-AA-220 V 50
On-time 100% ED
Coil rating
Pull-in upon request
Holding upon request
Weight 94 g