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YCIS8-55 DC Isolation Switch
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  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
  • YCIS8-55 DC Isolation Switch
YCIS8-55 DC Isolation Switch Featured Image

YCIS8-55 DC Isolation Switch

1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln

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Product Details

5

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

222

Overall and mounting dimensions(mm)

Din rail installation

7

YCISC8-55XPV

Din rail installation

222
8

YCISC8-55PV S

Single hole installation

222
20

YCISC8-55XPV S

Single hole installation

222
21

YCISC8-55XPV P

Panel installation

222

Door lock installation

1

External installation

2

Current/Voltage category parameter table

Wiring method                         Workingvoltage
Rated current
600V 800V 1000V
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

Note: 2H/3H/4H/3T/6T/9T/10P products need to be customized, if necessary, please contact us.

 

Derating table

3
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