China YCIS8-55 DC Isolation Switch Manufacture and Factory

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YCIS8-55 DC Isolation Switch

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YCIS8-55 DC Isolation Switch

General

It is mainly used in control cabinets, distribution boxes, inverters and combiner boxes in photovoltaic power generation systems for isolation of DC power distribution systems.

The external waterproof performance of this product reaches IP66. The inner core of the product can be installed inside the inverter for controlling the incoming line of the inverter.

Standards: IEC/EN60947-3, AS60947.3, UL508i standards.

Certification: TUV, CE, CB, SAA, UL, CCC.

Product Details

General

Isolating switch YCIS8 series is suitable for DC power systems with rated voltage DC1500V and below and rated current 55A and below. This product is used for infrequent on/off, and can disconnect 1~4 MPPT lines at the same time. It is mainly used in control cabinets, distribution boxes, inverters and combiner boxes in photovoltaic power generation systems for isolation of DC power distribution systems. The external waterproof performance of this product reaches IP66. The inner core of the product can be installed inside the inverter for controlling the incoming line of the inverter.
Standard: IEC/EN60947-3, AS60947.3, UL508i Standard.
Certification: TUV, CE, CB, SAA, UL, CCC.

Features

● Non-polarity design;
● Switch modular design, can provide 2-10 layers;
● Provide single-hole installation, panel installation, guide rail installation, door clutch or waterproof housing (dynamic sealing design and world-class sealing materials ensure IP66 protection grade);
● DC1500V insulation voltage design;
● Single-channel current 13-55A;
● Single hole installation, panel installation, power distribution module, door lock installation, external installation and other installation methods are optional;
● Provide 15 wiring schemes.
*: If you order "External installation"M25 and M16 interface products, we only reserve corresponding waterproof connector holes, and do not provide PG waterproof connectors

Selection

YCISC8	-	55	X	PV	P	2	MC4	25A
Model		Rated current	With lock or not	Usage	Installation mode	Wiring mothod	Joint type	Rated current
Isolation switch		55	/: No lock X: With lock	PV: Photovoltaic/ direct-current	No: Din rail installation	2/3/4/6/8/10 2H/3H/4H 4S/4B/4T 3T/6T/9T	/: No	13A, 20A, 25A, 40A, 50A (note the type when ordering)
					P: Panel installation
					D: Door lock installation
					S: Single hole installation
					E: External installation	244B4T4S	/: No MC4: MC4 joint

Note:
1. The "Din rail installation" and "external installation" can only be with the lock.
2. The rated current is the category of DC-PV1, and DC1000V is the benchmark. For other scenarios,
please refer to: "Current/Voltage Category Parameter Table (DC-PV1/DC-PV2)"
3. Rated current 55A, suitable for wiring mode 4B, 4T, 4S

Technical data

Model		YCIS8-55
Standard		IEC/EN60947-3:AS60947.3, UL508i
Use category		DC-PV1, DC-PV2
Appearance		Din rail installation	Panel installation	Door lock installation	Single hole installation	External installation
Wiring method		2/3/4/6/8/10; 2H/3H/4H; 4S/4B/4T; 3T/6T/9T				244B4T4S
Joint type		/				/,M25,2MC4,4MC4
Electrical performance
Rated current ln(A)		13	20	25	40	50
Rated heating current Ith(A)		32	40	55	55	55
Rated insulation voltage Ui(V DC)		1500
Rated working voltage Ue(V DC)		1500
Rated impulse voltage Uimp(kV)		8
Rated short-time withstand current Icw(1s)(A)		780
Rated short-time making capacity(Icm)(A)		1200
Rated limited short-circuit current Icc(A)		5000
Maximum fuse specification gL(gG)(A)		160
Overvoltage category		III
Polarity		No polarity, "+" and "-" polarity can be interchanged
Switch knob position		9 o'clock position off, 12 o'clock position on (or 12 o'clock position off, 3 o'clock position on)
Contact spacing (per pole)(mm)		8
Service life	Mechanical	10000
	Electrical	3000
Applicable environmental conditions and installation
Maximum wiring capacity (including jumper wires)
Single wire or standard(mm²)		4月16日
Flexible cord(mm²)		4月10日
Flexible cord (+ stranded cable end)(mm²)		4月10日
Torque
Tightening torque of terminal M4 screw(Nm)		1.2-1.8
Tightening torque of upper cover mounting screw ST4.2 (304 stainless steel)(Nm)		2.0-2.5
Tightening torque of knob M3 screw(Nm)		0.5-0.7
Switching torque		0.9-1.9
Environment
Protection degree		IP20; External type IP66
Operating temperature(℃)		-40~+85
Storage temperature(℃)		-40~+85
Pollution degree		3
Overvoltage category		III

Maximum power loss per contact pair
Wiring method	Power loss(W)
2	≤6
4	≤12
6	≤18
8	≤24
2H	≤3
3H	≤4.5
4H	≤6

Wiring diagram

Overall and mounting dimensions(mm)

Din rail installation

YCISC8-55XPV

Din rail installation

YCISC8-55PV S

Single hole installation

YCISC8-55XPV S

Single hole installation

YCISC8-55XPV P

Panel installation

Door lock installation

External installation

Current/Voltage category parameter table

Wiring method	Workingvoltage Rated current	600V		800V		1000V
Wiring method	Workingvoltage Rated current	PV1	PV2	PV1	PV2	PV1	PV2
2、3、4 6、8、10	13	32	13	26	13	13	6
	20	40	20	30	15	20	8
	25	55	25	45	23	25	10
	40	55	40	50	30	40	15
	50	55	50	55	40	50	18
4T、4B、4S	13	32	12	32	12	32	8
	20	40	18	40	18	40	12
	25	55	20	55	20	55	15
	40	55	40	55	40	55	32
	50	55	50	55	50	55	40