Danfoss CTI 25M, CTI 45MB Data sheet

Data sheet

Circuit Breakers

Type CTI 25M, CTI 45MB

Circuit breakers for short circuit and overload protection of motor applications cover the current range 0.1 – 45 A (AC-3 rating).

The product range is split in two product sizes. The smallest size is CTI 25M. It consists of 14 code numbers and covers the current range 0.1– 32 A. The bigger size is called CTI 45MB. It consists of two code numbers and covers the current range from 23 – 45 A.

The program is very flexible and includes addon accessories such as auxiliary contacts, alarm contacts, voltage and under voltage trips, connection terminals and bus bars.

Features	•	Overload protection and short circuit
		protection of motor installations
	• Test function for thermal trip
	•	Manual reset function
	• Indication for thermal trip

•Indication for magnetic trip (short circuiting)

•Single phase protection (Differential trip)

•Temperature compensated (-20 – 60 °C)

•Tripping class 10

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Data sheet | Circuit Breakers CTI 25M, CTI 45MB

Approvals

Ordering

Approval				UK	Germany	France
institute				Lloyds
				Lloyds
				Register
				of	Germanischer	Bureau
Product type	EN 60947	Canada	USA	Shipping	Lloyd	Veritas
CTI 25M						
CTI 45MB						
CBA-						
CBA S-						
CBT-						
CBT S-						
VTU-						
BDH						
RDH						
BBT-						
BBC-						

 Approved

 Approvals applied for

Circuit Breakers / Manual Motor Starters CTI 25M, CTI 45MB

	AC-3 Load	Range			Electromagnetic
Type	380 - 415 V	Motor Starter			Trip current	Code no.
	[kW]	[A]			[A]
	0.02	0.1 – 0.16			2.1	047B3140
	0.06	0.16	–	0.25	3.3	047B3141
	0.09	0.25	–	0.40	5.2	047B3142
	0.18	0.4 – 0.63			8.2	047B3143
	0.25	0.63 – 1.0			13	047B3144
	0.55	1.0	–	1.6	21	047B3145
	0.75	1.6	–	2.5	33	047B3146
CTI 25M	1.5	2.5	–	4.0	52	047B3147
	2.2	4.0	–	6.3	82	047B3148
	4.0	6.3 – 10			130	047B3149
	7.5	10	–	16	208	047B3150
	10	14.5 – 20			260	047B3151
	11	18	–	25	325	047B3152
	13	24	–	29	406	047B3103
	15	27	–	32	448	047B3102
CTI 45MB	15	23	–	32	416	047B3164
CTI 45MB	22	32	–	45	585	047B3165
	22	32	–	45	585	047B3165

Note!

For motors with full load currents higher or equal with 19 A, CTI 25M 047B3152 (18 - 25 A) must be selected

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Data sheet | Circuit Breakers CTI 25M, CTI 45MB

Ordering

CBA -

CBA S-

CBT S-

VTU

Anti tamper shield

BDH

RDH

Door handle extension

BBT 25

BBC 25

Auxiliary contacts and Alarm contacts to circuit breakers CTI 25M, CTI 45MB

Type	Description	Feature	Mounting	Code no.
CBA-10	Auxiliary contact	1 NC (11-12)	Front 1)	047B3198
CBA-11	Auxiliary contact	1 NO+1 NC (13-14, 21-22)	Front 1)	047B3200
CBA-20	Auxiliary contact	2 NO (13-14, 23-24)	Front 1)	047B3201
CBA S-11	Auxiliary contact	1 NO+1 NC (33-34, 41-42)	Side 1) 3)	047B3203
CBT S-TM2	Trip alarm + Magnetic alarm contact	Trip alarm: Make, 55-56,	Side 2) 4)	047B3211
		Magnetic alarm: Break, 65-66
1) Max. one per Circuit breaker
2) Can also be mounted together with CBA-S
3) Can also be mounted onto an alarm contact CBT S-
4) Always direct onto the circuit breaker

Under voltage and voltage trips to circuit breakers CTI 25M, CTI 45MB

Type	Remarks	Code no.
VTU	Under voltage trip, 24 V/50 Hz-28 V/60 Hz, D1-D2	047B3214
VTU	Under voltage trip, 220-230 V/50 Hz, D1-D2	047B3217
VTU	Under voltage trip, 380-400 V/50 Hz, 440-460 V/60 Hz, D1-D2	047B3220

Accessories for circuit breakers CTI 25M, CTI 45MB

Type	Remarks	Code no.
BDH	Black door handle for mounting in panel doors IP66	047B3249
RDH	Red/yellow door handle for mounting in panel doors IP66	047B3250
	Door handle extension rod for CBI 100-BDH	047B3136

Connection terminal blocks and bus bars for circuit breakers CTI 25M, CTI 45MB

Type	Remarks	Spacing	Number of connections	Code No.
Type	Remarks	[mm]	Number of connections	Code No.
		[mm]
BBT 52	Connection terminal block for CTI 25M	–	–	047B3259
BBC 25 45-2	Bus bar for CTI 25M	45	2	047B3261
BBC 25 45-3	Bus bar for CTI 25M	45	3	047B3262
BBC 25 45-5	Bus bar for CTI 25M	45	4	047B3263
BBC 25 45-5	Bus bar for CTI 25M	45	5	047B3264
BBC 25 54-2	Bus bar for CTI 25M	54	2	047B3265
BBC 25 54-3	Bus bar for CTI 25M	54	3	047B3266
BBC 25 54-4	Bus bar for CTI 25M	54	4	047B3267
BBC 25 54-5	Bus bar for CTI 25M	54	5	047B3268

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Data sheet | Circuit Breakers CTI 25M, CTI 45MB

Features

Ordering

Enclosures for the circuit breaker CTI 25M is made of deform-resistant grey ABS thermoplast.

The enclosures are available with black rotary handle on a grey background or with red rotary handle on a yellow background.

Circuit breaker type CTI 25M for overload protection of electric motors from 0.1 – 25 A full load current can be mounted into the enclosure.

Status indication ON-OFF-TRIP

For maintenance purposes locking facility up to 3 padlocks

Sealed cover

High protection degree IP65

Cable entries top and bottom M20/25Mounted with DIN-rail

Mounted with earth terminal

Possible installation of auxiliary and trip contacts

Space for under voltage and voltage trips

Used as:

Manual motor starterMains isolator

Maintenance switch

Emergency switch together with under voltage trip

Used on:

Small workshops for drilling machinesConcrete mixer

Air handling units

Water booster systemsFan systems

Transport belt

Enclosures for CTI 25M

Type	Application	Rotary handle	Cable entries	Code no.
BMG	Motor starter / Main switch	Black/grey	4 M20/25	047B3284
BMY	Motor starter / Emergency switch	Red/grey	4 M20/25	047B3285

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Data sheet | Circuit Breakers CTI 25M, CTI 45MB

Contact symbols for CTI and accessories

CTI 25M, CTI 45MB

Circuit breakers

Auxiliary contacts for front mounting

CBA-10 CBA-01 CBA-11

CBA-20

CBA-02

Auxiliary contacts for side mounting

CBA S-11 CBA S-20

CBA S-02

Alarm contacts for side mounting

CBT S-2TM CBT S-1T-1M CBT S-1M-1T CBT S-TM2 CBT S-1M-1M

Under voltage trip

VTU-

Voltage trip

VT-

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Data sheet | Circuit Breakers CTI 25M, CTI 45MB

General specifications
General specifications	Parameters	CTI 25M, CTI 45MB
	Isolation voltage
	IEC, SEV, VDE 0660	690 V
	UL, CSA	600 V
	Impulse voltage
	Uimp/pollution degree	6 kV/3
	Rated frequency range	50/60 Hz
	Ambient temperature:
	Storage	-40 – 80 °C
	Operation	-25 – 60 °C
	Temperature compensation	-20 – 60 °C
	Utilization category	As circuit breaker IEC 947-2
	Utilization category	As motor starter IEC 947-4-1
		As motor starter IEC 947-4-1
	Overload protection	Motors
	Trip class	10
	Magnetic trip	13 × (max. value of setting range)
	Phase failure protection	Yes
	Mechanical operations	100000
	Electrical operations	30000
	Switching frequency	Max 25 operations/hour
	Resistance to climate change	according to IEC 68-2
	Site altitude	2000 m N.N
	Protection class	IP20
	Resistance to vibration	IEC 68-2
	Resistance to shock	30 g, 11 ms
	Life span	0.1 – 25 A
	Total power loss	6 – 8 W

Mounting direction

CTI 25M, CTI 45MB

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