Page 56 - Motor protection and control Manual motor starters, contactors and overload relays

2/30 ABB MOTOR PROTECTION AND CONTROL

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MS132-KT circuit breakers for transformer protection with Push-in Spring terminals

0.10 to 25 A – with thermal and electromagnetic protection
02

Circuit breakers for transformer protection with Push-in Spring terminals are electro-mechanical
protection devices specially designed to protect control transformers on the primary side. They al-
low fuseless protection against overload and short-circuit, saving space and cost and ensuring a
quick reaction under short-circuit condition by switching off the transformer within milliseconds.
The short-circuit current setting is fixed to 20 times the operating current to handle the high inrush
current generated by transformers. The device allows manual connection and disconnection of the
transformer from the mains.
MS132-KT is a 45 mm (width) compact and powerful range for transformer protection up to 12.5 kW
(400 V) / 25 A. This type has also a clear and reliable indication of fault in a separate window in the
event of short-circuit tripping. Further features are the built-in disconnect function, temperature
MS132-KT compensation, trip-free mechanism and a rotary handle with a clear switch position indication. The
handle is lockable to protect against unauthorized changes. Auxiliary contacts, signaling contacts,
undervoltage releases and shunt trips are available as accessory. These are suitable throughout the
MS116/MS132/MS165-range.
Setting range Short-circuit Rated Type Order code Weight
breaking capacity instantaneous (1 pce)
Ics short-circuit
at 400 V AC current setting li
A kA A kg
0.10 … 0.16 100 3.2 MS132-0.16KT 1SAM340010R1001 0.256
0.16 … 0.25 100 5 MS132-0.25KT 1SAM340010R1002 0.256
0.25 … 0.40 100 8 MS132-0.4KT 1SAM340010R1003 0.256
0.40 … 0.63 100 12.6 MS132-0.63KT 1SAM340010R1004 0.256
0.63 … 1.00 100 20 MS132-1.0KT 1SAM340010R1005 0.256
1.00 … 1.60 100 32 MS132-1.6KT 1SAM340010R1006 0.298
1.60 … 2.50 100 50 MS132-2.5KT 1SAM340010R1007 0.280
2.50 … 4.00 100 80 MS132-4.0KT 1SAM340010R1008 0.286
4.00 … 6.30 100 126 MS132-6.3KT 1SAM340010R1009 0.289
6.30 … 10.0 100 200 MS132-10KT 1SAM340010R1010 0.296
10.0 … 16.0 100 320 MS132-16KT 1SAM340010R1011 0.316
16.0 … 20.0 100 400 MS132-20KT 1SAM340010R1013 0.317
20.0 … 25.0 50 500 MS132-25KT 1SAM340010R1014 0.316

81 3.19"
81 3.19"
72.5 2.85"
72.5 2.85"
45 1.77" 5.5 0.22" 43.5 1.71"
45 1.77" 5.5 0.22" 43.5 1.71"

112 4.41" 90 3.54" 35mm EN/EC 60715 45 1.77" 112 4.41" 90 3.54" 35mm EN/EC 60715 45 1.77"

2CDC131062C0201 - Rev. B

MS132-KT > 10 A MS132-KT < 10 A
Main dimensions mm, inches