RDM5E Series（MCCB）

RDM5E series electronic molded case circuit breaker is applicable to AC 50Hz distribution networks. It features a rated insulation voltage of 1000V, rated working voltage of 690V and below, and rated working current of 800A and below. The product is designed for power distribution, and protects lines and power supply equipment against overload, short circuit, undervoltage and other faults. For models with a rated current of 630A and below, it also provides motor protection. Under normal conditions, it can be used for infrequent line switching and motor starting.

Send email to us Download as PDF

Product Detail

Parameters

Samples & Structures

Dimensions

Normal Working Conditions and Installation Conditions

1.Installation location no more than 2000m

2.Temperature: not higher than +40℃,and no lower than -25℃, and the average temperature no higher than +35℃

3.The relative humidity: no more than 50%,when temperature is +40℃.The product can withstand the higher humidity under lower temperature, for instance, when temperature at +20℃, the product can withstand 90% relative humidity

4.Class of pollution:3 lass

5.Main circuit breaker installation type:Ⅲ class, Auxiliary circuit and control circuit installation type:Ⅱ class

Main Function Characteristics

Intelligent controller is the main parts of the MCCB, it is applicable for the motor protection or the distribution protection, to realize the measurement, protection, control and communication functions are integrated,so that the line and power equipment are free from overload short circuit, grounding and other fault damages.
Using MCU micro processing controller, stable and reliable performance: this intelligent controller can supply the power, only one phase is electrified, when the current is not lower than 35% of its rated current, all can ensure the protection function is working normally.

1.Selective cooperation has three-stage protection: the circuit breaker of class B and other short circuit protection devices can selectively cooperate under short circuit conditions; the setting of overload long delay reverse time limit, short circuit delay (reverse time limit, fixed time limit), short circuit instantaneous and other protection function parameters

2.With three parameter sets of action current and action time, it can be adjusted from 4-10 stages: the user can adjust the controller according to the load current requirements, or choose to close the corresponding function

3.High current instantaneous tripping function: when the circuit breaker is closed for operation, if has the short circuit high current (≥20Inm,the circuit breaker magnetic tripping mechanism can be directly disconnected, the double protection is more reliable and safe

4.With the tripping test (test) function: input DC DC12V voltage to test the circuit breaker action characteristics

5.Fault self-diagnosis function: to protect and detect the working state and operation situation of the intelligent controller itself

6. With the forecast warming indication, overload indication: when the load current reaches or exceeds the setting value, the light guide column exports the light source

7. Magnetic flux converter double air gap technology: work more reliable and stable, prevent misoperation, reliable tripping, low power

8.High protection accuracy: overload protection, short circuit, shot delay protection action current accuracy ＋10%; short circuit instantaneous protection value accuracy of + 15% depends on the action current

Optional Function

1.Dual passive signal output function: signal (or alarm),AC230V ЗA

2.With fire protection shunt function: overload alarm does not trip (provide a pair of passive contacts) and provide shunt release function

3.With communication function: standard RS485, Modbus Fieldbus Agreement

Main Technical Parameter

	RDM5E-125		RDM5E-250		RDM5E-400		RDM5E-800
Rated current of frame size Inm (A)	125		250		400		800
Rated current (A)	32, 63, 125		250		400		630, 800
Poles	3,4		3,4		3,4		3,4
Rated frequency (Hz)	50
Rated insulation voltage Ui (V)	AC 1000
Rated impulse withstand voltage Uimp (V)	12000
Rated working voltage Ue (V)	400/690V
Arc distance (mm)	≤50		≤50		≤100		≤100
Rated short circuit breaking capacity	M	H	M	H	M	H	M	H
Rated limit/Rated operation Icu/Ics (KA) at 400V	35/23	50/35	35/23	50/35	50/35	70/50	50/35	70/50
Rated limit/Rated operation Icu/Ics (KA) at 690V	15/8	20/10	15/8	20/10	15/8	20/10	15/8	20/10
Rated short-time withstand current Icw (KA/1s)	1.5		3		5		10
Usage category	A		A		B		B
Conforms to standard	IEC60947-2
Using environment condition	-35~+70℃
Electrical life (cycles)	5000		3500		1500		500
Mechanical life (cycles)	10000		10000		5000		3000
Front connection	■	■	■	■	■	■	■	■
Rear connection	■	■	■	■	■	■	■	■
Plug-in connection	■	■	■	■	■	■	■	■
Undervoltage release	■	■	■	■	■	■	■	■
Shunt release	■	■	■	■	■	■	■	■
Auxiliary contacts	■	■	■	■	■	■	■	■
Alarming contacts	■	■	■	■	■	■	■	■
Motor operation mechanism	■	■	■	■	■	■	■	■
Manual operation mechanism	■	■	■	■	■	■	■	■
Intelligent control module	■	■	■	■	■	■	■	■
Testing power module	■	■	■	■	■	■	■	■

Accessory Function Allocation

Specification allocation

No.	Name	10p accessory function	Rated power voltage (range)	Rated control signal voltage (range)
1	Four remote accessories	Four remote communication+ Reset button+working indication	DC24V (85%~110%)	Status signal DC24V (85%~110%)Motor operation signal DC24V
			AC230V (85%~110%)	Status signal AC230V (85%~110%)Motor operation signal AC230
Remark: Reset button function, pressing and holding for 5s;Communication baud rate, communication address and other parameters are restored to factory values

Technical Parameters for The Accessories Devices

Rated value of auxiliary contacts and alarming contacts

Classification	Rated current of frame size Inm (A)	Setting thermal current Ith (A)	Rated working current Ie (A)
Classification	Rated current of frame size Inm (A)	Setting thermal current Ith (A)	AC400V	DC200V
Auxiliary contacts	Inm≤400	3	0.3	0.15
Auxiliary contacts	Inm≥400	3	0.4	0.15
Alarming contacts	100≤Inm≤800	3	0.3	0.15

Rated control power voltage (Us) and rated working voltage (Ue) of control circuit release and electric operaion mechanism

Type		Rated voltage (V)
Type		AC50Hz		DC
Release	Shunt release	Us	230、400	24
Release	Undervoltage release	Ue	230、400	--
Electric operation mechanism		Us	230、400	110、220

口External voltage of shunt release is within 70%~100% of rated control power voltage, it should reliably break the circuit breaker.

口When the power voltage reduces to the 70%~35% of the undervoltage release's rated voltage,the undervoltage release should reliably break the circuit breaker, When the power voltage is lower than 35% of the undervoltage release's rated voltage, the undervoltage release can prevent the circuit breaker closing. When the power voltage is higher than 85% of the undervoltage release's rated voltage,the undervoltage release can ensure the circuit breaker reliably close.

口When the electric operation mechanism is under the rated frequency, and the power voltage between 85%~110%,it can reliably close the circuit breaker.

Power consumption

Model No.	Electrified current（A）	Three-phase total power loss(VA)
Model No.	Electrified current（A）	Front and rear wiring	Plug-in type wiring
RDM5E-125	125	35	40
RDM5E-250	250	62	70
RDM5E-400	400	115	125
RDM5E-800	800	262	294

Capacity reduction coefficient of ambient temperature change (all measured under the rated current of the same case frame)

Capacity reduction / Environment temperature/ Model No.	+40℃	+45℃	+50℃	+55℃	+60℃	+65℃	+70℃
RDM5E-125	1ln	1ln	1ln	0.97ln	0.95ln	0.92ln	0.9ln
RDM5E-250	1ln	1ln	1ln	0.96ln	0.93ln	0.89ln	0.86ln
RDM5E-400	1ln	1ln	1ln	0.97ln	0.95ln	0.92ln	0.9ln
RDM5E-800	1ln	1ln	1ln	0.96ln	0.93ln	0.89ln	0.86ln

Communication Function

口 RDM5E MCCB with the electric operation mechanism is connected with the upper computer (such as computer), it can realize the remote " Four remote" function through the communication interface, RS485 interface, Modbus-RTU protocol, communication baud rate 9600K.Additionally, adding the RDM5E MCCB controller (optional accessories) can be directly read and modify the parameters of the circuit breaker in the field

口 Communication interface and external module of electronic type MCCB

口 RDM5E communication MCCB has the communication interface, MODBUS communication protocol

口When the RDM5E communication MCCB is not used for the network communication but for singly use, the handheld programmer can adjust the protection characteristics of the circuit breaker through the communication interface, the RD-CD LCD display module can also be connected to the communication interface to monitor the operating current and fault information of the circuit breaker

口When RDM5E communication MCCB is used for the network, it can be directly connected to the responding field bus, Refer to the field bus with different protocol, can use RD-DP protocol conversion module, to converse the MODBUS protocol and connect to the responding field bus

口The communication network of RDM5E series communicable electronic plastic case circuit breaker can be connected with reference to the scheme in the figure below

RDM5E Series communication electronic type MCCB function configuration

●Basic function △ Optional function

Function/Type	RDM5E Basic type	RDM5E(Z) Intelligent type	RDM5E(X) Fire-proof type	RDM5E(F) Prepaid type
Overload long delay setting	●	●	●	●
Short circuit short delay setting	●	●	●	●
Short circuit instantaneous setting	●	●	●	●
Overload, forecast alarm indication	●	●	●	●
Release testing function	●	●	●	●
Fault self-diagnosis function	●	●	●	●
Dual-channel passive signal output	--	●	△	--
Communication function module	--	●	△	--
Shunt function	--	△	△	--
Intelligent control module	--	△	△	--
Fire-proof function	--	--	●	--
Prepaid function	--	--	--	●

Overall and Installation Dimension

Overall dimension of front board wiring to see below diagram (X-X, Y-Y is the center of the circuit breaker)

Model No.	Front board wiring																		Button Position
Model No.	W	W1	W2	W3	L	L1	L2	L3	L4	H	H1	H2	H3	H4	H5	E	F	G	L5	L6
RDM5E-125	92	60	-	-	150	125	132	43	92	82	112	29	29	93	96	43	19	18	22	16
RDM5E-250	107	70	142	105	165	136	144	52	104	85	115	23	23	90.5	94	50	19	23	42.5	15.5
RDM5E-400	150	96	198	144	257	228	224	69	159	99	152	38	38	104	115	80	42	31	57.5	30
RDM5E-800	210	140	280	210	280	240	243	80	178	103	158	41	44	112	122	82	42	44	53	24.5

Panel operation handle dimension

Model No.	code
Model No.	W4	L8	L9
RDM5E-125	23	24	40
RDM5E-250	23	30	44
RDM5E-400	47	39	66
RDM5E-800	47	42	66

RDM5E Series back board wiring installation board hole-opening dimension

RDM5E series back-board wiring overall and installation dimension

RDM5E-125~800 Back-board wiring overall and installation board hole-opening dimension

Model No.	Code
Model No.	H3	H4	D	W	L2	d2	A	B	C	d1
RDM5E-125	40	73	M8	30	132	24	30	108	60	5.5
RDM5E-250	46	79	M10	35	145	15	35	126	70	5.5
RDM5E-400	46	83	φ12	48	224	32	44	194	94	7
RDM5E-800	47	87	φ16	70	243	48	70	243	70	7.5

Front board wiring installation board hole-opening dimension (X-X, Y-Y is the center of the circuit breaker)

Model No.		RDM5E-125		RDM5E-250		RDM5E-400		RDM5E-800
Pole		3	4	3	4	3	4	3	4
Installation board hole opening dimension(mm)	A	30	60	35	70	44	94	70	140
	B	129		126		194		243
	d	4.5		4.5		7		7

Back board wiring installation board hole-opening dimension (X-X,Y-Y is the center of the circuit breaker)

Model No.		RDM5E-125		RDM5E-250		RDM5E-400		RDM5E-800
Pole		3	4	3	4	3	4	3	4
Installation board hole opening dimension (mm)	A	60	-	70	-	96	-	140	-
	A1	-	90	-	105	-	144	-	210
	B	30	-	35	-	44	-	70	-
	B1	-	60	-	70	-	94	-	70
	C	108		122		194		243
	D	132		145		224		243
	φ1	22		24		32		48
	φ2	5.5		5.5		7		7

RDM5E series plug-in type front board overall dimension

RDM5E-125~800 plug-in type front board circuit breaker overall dimension

Model No.	Code
Model No.	A	G	K	H	H₁	H₂	H₃	L1	L2	AM	BM
RDM5E-125	172	95	38.5	50.5	35	16.5	61	185	217	M6	M8
RDM5E-250	183	95	44	52	35	18	65	230	259	M6	M10
RDM5E-400	276	170	53	79.5	67	18	-	322	352	M6	M10
RDM5E-800	303	179	62	87.5	60.5	28	118	375	405	M10	M12

Plug-in type front board wiring installation board hole-opening dimension (X-X,Y-Y is the center of the circuit breaker)

RDM5E-125-800 Plug-in type front board wiring installation board hole opening dimension

Model No.		RDM5E-125	RDM5E-250	RDM5E-400	RDM5E-800
Pole		3	3	3	3
Installation board hole opening dimension (mm)	B	66	70	115	90.5
	B1	50	60		65
	C	60	64	135	144.5
	C1	35	35	-	80
	d	6.5	6.5	6.5	11

RDM5E series plug-in type back board overall dimension and installation board hole-opening dimension

RDM5E-125~800 Plug-in type back board circuit breaker overall dimension

Model No.	Code
Model No.	A	G	K	L1	H	H1	H2	H3	H4	AM	BM
RDM5E-125	168	92	38	132	48	32.5	32.5	18	17	M6	M8
RDM5E-250	186	95	45.5	145	49.5	33.5	34	17	17	M6	M8
RDM5E-400	280	171	54.5	224	59.5	40	44	23.5	20	M8	M12
RDM5E-800	305	181	62	243	87	60	-	-	28	M10	M14

Plug in type back board wiring installation board hole-opening dimension (X-X,Y-Y is the center of circuit breaker)

RDM5E-125~800 Plug-in type back board wiring installation board hole-opening dimension

Model No.		RDM5E-125		RDM5E-250		RDM5E-400		RDM5E-800
Pole		3	4	3	4	3	4	3	4
Installation board hole opening dimension (mm)	A	91	-	107	-	149	-	210	-
	A1	-	126	-	145	-	200	-	280
	B	60	-	70	-	60	-	90
	B1	-	90	-	105	-	108	-	162
	C	56		54		129		146
	K	38		45.5		54.5		62
	E	92		95		171		181
	d	6.5		6.5		8.5		11

Rated current of shell frame grade Inm (A)		125		250		400		800
Rated current In (A)		32、63、125		250		400		630、800
Current setting value IR (A)		（12.5~125）+Close		（100~250）+Close		（160~400）+Close		（250~800）+Close
Breaking capacity level		M	H	M	H	M	H	M	H
Number of poles		3P、4P
Rated frequency (Hz)		50
Rated insulation voltage Ui (V)		AC1000
Rated impulse withstand voltage Uimp (V)		12000
Rated working voltage Ue (V)		AC400/AC690
Arcing distance (mm)		≤50		≤50		≤100		≤100
Short-circuit breaking capacity level		M	H	M	H	M	H	M	H
Rated limit short-circuit breaking capacity Icu (kA)	AC400V	50	85	50	85	65	100	75	100
	AC690V	35	50	35	50	42	65	50	65
Rated operating short-circuit breaking capacity Ics (kA)	AC400V	20	20	20	20	20	20	20	20
	AC690V	10	10	10	10	15	15	15	15
Rated short-time withstand current Icw (kA/1s)		1.5		3		5		10
Use category		A		A		B		B
Compliance with standards		IEC60497-2/GB/T14048.2
Applicable working ambient temperature		-35°C～+70°C
Electrical life (times)		8000		8000		7500		7500
Mechanical life (times)		20000		20000		10000		10000
Front panel connection		█		█		█		█
Back panel connection		█		█		█		█
Plug-in wiring		█		█		█		█
Undervoltage release		█		█		█		█
Shunt release		█		█		█		█
Auxiliary contact		█		█		█		█
Alarm contact		█		█		█		█
Electric operating mechanism		█		█		█		█
Manual operating mechanism		█		█		█		█
Intelligent control module		█		█		█		█
Test power module		█		█		█		█
Communication function		█		█		█		█
Time setting		█		█		█		█

See Figure 1 for the overall dimensions of the front-plate wiring (X-X and Y-Y are the center of the circuit breaker)

Model	Front panel connection																	Button location
Model	W	W1	W2	W3	L	L1	L2	L3	L4	H	H1	H2	H3	H4	E	F	G	L5	L6
RDM5E-125	92	60	122	90	150	125	132	43	92	82	112	29	93	96	43	19	18	22	16
RDM5E-250	107	70	142	105	165	136	144	52	104	85	115	23	90.5	94	50	19	23	42.5	15.5
RDM5E-400	150	96	198	144	257	256	224	9	159	99	152	38	104	115	80	42	1	57.5	30
RDM5E-800	210	140	280	210	280	240	243	80	178	102	158	41	112	122	82	42	44	53	24.5