Electronic Circuit Breaker

S8V-CP – Electronic Circuit Breaker

S8V-CP protects DC circuits very precisely. Overload and short circuits are accurately detected and reliably switched off

4- / 8-channel electronic circuit breakers with adjustable tripping currents from 2 to 10 A
Thermomagnetic tripping characteristic
Sequential and load-dependent start-up of the outputs to avoid high inrush currents
Ability to switch-on high capacitive loads reliably
Backlit buttons with multi-color LEDs indicate the output status at a glance
Push-In Plus terminal blocks
Space saving Value Design for Panel
UL Class 2 model reduces the costs of applying a safety standard

Model Number Structure

Model Number Legend

Not all combinations are possible. Refer to List of Models in Ordering Information, below.

(1) Number of Outputs

Code	Number of Outputs
04	4 outputs
08	8 outputs

(2) Rated input voltage

Code	Rated input voltage
24	24 VDC

(3) UL Class 2 output

Code	UL Class 2 output certified
S	Yes
No	No

List of Models

Unit

Number of Outputs	UL Class 2 output	Order code
4 outputs	No	S8V-CP0424
4 outputs	Yes	S8V-CP0424S
8 outputs	No	S8V-CP0824

Specifications

Item	Model Number of Outputs UL Class 2 output		S8V-CP0424	S8V-CP0424S	S8V-CP0824
			4	4	8
			No	Yes	No
I/O characteristics	Rated input voltage (Input voltage allowable range)		24 VDC (20 to 30 VDC)	24 VDC (20 to 28.8 VDC)	24 VDC (20 to 30 VDC)
	Allowable input current		40 A	15.2 A	70 A
	Max. rated output current (per output)		10 A	3.8 A	10 A
	Internal voltage drop		200 mV max.	150 mV max.	200 mV max.
	Output leakage current		10 mA max.
	Power consumption	When all outputs are connected	10 W max. (at 10 A)	3.1 W max. (at 3.8 A)	20 W max. (at 10 A)
	Power consumption	When all output branches are tripped	0.84 W typ.	0.82 W typ.	1.32 W typ.
	Start-up time	Initialization time	250 ms typical
	Start-up time	Start-up delay time	50 ms to 5 s
Functions	Current tripping function	Rated output current	2 A, 3 A, 4 A, 6 A, 8 A, 10 A	3.8 A	2 A, 3 A, 4 A, 6 A, 8 A, 10 A
	Current tripping function	Cutoff current	2.5 A, 3.5 A, 4.5 A, 6.5 A, 8.5 A, 10.5 A	3.8 A	2.5 A, 3.5 A, 4.5 A, 6.5 A, 8.5 A, 10.5 A
	Over voltage tripping function		No	Yes	No
	Push button (ON/OFF/RESET) with indicator		Yes (LED colors: Red/Green/Yellow)
	Reset signal input (RST)		Yes (High level: 15 to 30 VDC, Low level: 0 to 5 VDC)
	Alarm signal output (ALM1/ALM2)		Yes (MOS FET relay output 30 VDC max., 50 mA max.)
Insulation	Dielectric strength		1.0 kVAC for 1 min (between all terminals and DIN rail mounting parts), current cutoff 20 mA
Insulation	Insulation resistance		100 MΩ min. (between all terminals and DIN rail mounting parts) at 500 VDC
Environment	Ambient operating temperature		–25 to 70°C (Derating is required according to the temperature.) (with no condensation or icing)
	Storage temperature		–40 to 85°C (with no condensation or icing)
	Ambient operating humidity		5% to 96% (storage humidity: 5% to 96%)
	Vibration resistance		10 to 55 Hz, maximum 5 G, 0.42 mm half amplitude for 2 h each in X, Y, and Z directions
	Shock resistance		294 m/s2, 3 times each in ±X, ±Y, ±Z directions
Reliability	MTBF		13,5000 hrs typ.	60,000 hrs typ.	13,5000 hrs typ.
Reliability	Life expectancy		10 years min.
Construction	Weight		160 g max.	170 g max.	420 g max.
	Cooling fan		No
	Degree of protection		IP20 by EN/IEC 60529
Standards	EMI		Conforms to EN 61000-6-3
	EMS		Conforms to EN 61000-6-2
	Safety standards		UL 508 (CSA22.2 No.14-10) Listing Pol2 UL 2367 Recognition (Max. 100W per output, per Class 2 limitations) Pol2 CE (EN 61000-6-2, EN 61000-6-3)