Backup power source for critical facilities where power outages are not permitted, including telecommunications facilities, power receiving and distribution equipment for transportation systems, emergency lighting systems in buildings, and water treatment facilities.

• Cubicle-type battery equipment compliant with the Fire Prevention Ordinance
• Sine-wave input switching method reduces input power distortion and minimizes harmonic interference to the power supply side
• Widely used as a power source for telecommunications equipment and control devices
• Highly reliable and maintainable power supply adopting an n+1 configuration

Specifications

Item			24 V System		48 V System		Remarks
Environment	Ambient temperature		−10 to 40°C				JIS C 4402
	Relative humidity		25–85% (non-condensing)
	Altitude		≤ 1,000 m
Type	Rated operation		Continuous
	Control method		Transistor pulse-width control
	Cooling method		Natural cooling or forced air cooling
AC Input	Number of phases		Single-phase or three-phase
	Rated input voltage		100V	200V	100V	200V
	Voltage fluctuation range		180～220V		180～220V
	Power factor		≥80% (single-phase), ≥90% (three-phase)				Depends on model
	Rated frequency		50/60 Hz (common)
	Frequency fluctuation range		50Hz±5% /60Hz±5%
DC Output (Unit)	Voltage		26.8（29.0）V		53.5（55.8）V		See Note 2
	Voltage adjustment range		±0.5V or more		±1.0V or more
	Constant voltage accuracy		Single	three-phase	Single	three-phase
			≤2.0%		≤2.0%
	Rated Current		Input Voltage 100 or 200V	Input Voltage 200V	Input Voltage 100 or 200V	Input Voltage 200V
			25、50A	25、50、100A	10、20、30、40、50A
	Current fluctuation range		0～100%				≤2V/cell
	Maximum sag current		≤105%				At rated input/output
DC Output (Device Load Side)	Efficiency		70% or higher
	Rated Current	n Method	10 or 50 or 100A × n				n is the number of units
		n+1 configuration	10 or 50 or 100A × n+1
	Compensation device Load voltage	Load voltage Range	24V ±10% or less		48V ±10% or less
		Rated Current	Same as rated current
	Current Variation Range		10 to 100%
	Ripple Voltage		300mVp-p or less				When battery is connected
	Evaluation Noise		5mV or less				When battery is connected

Note 1: When considering HS or CS types instead of MSE-type valve regulated stationary lead-acid batteries, please contact us.
Note 2: The above values indicate 12-cell and 24-cell configurations. DC output voltages for 13-cell and 25-cell configurations are shown in parentheses.

Applicable Standards

• Japanese Industrial Standards (JIS)
• Electrotechnical Committee Standards (JEC)
• Japan Electrical Manufacturers’ Association Standards (JEM)
• Storage Battery Association Standards (SBA)
• For battery equipment of 4,800Ah per cell or greater subject to the Fire Prevention Ordinance, compliant cubicles will be used.
• Please contact us if compliance with other standards is required.

13.8V Systems

Items		Rated Specifications and Performance
Method	Rectification method	Transistor pulse width modulation
	Cooling method	Natural cooling
	Rated operation	Continuous operation
AC Input	Number of phases	Single-phase 2-wire
	Rated voltage	100V
	Voltage fluctuation range	±10% of rated voltage
	Rated frequency	50/60Hz
	Frequency fluctuation range	±5% of rated frequency
DC Output	Charging method	Float charging (for MSE type)
	Rated voltage	Determined by battery type and quantity
	Voltage adjustment range	±3% or more of float voltage
	Constant voltage accuracy	Within ±2%
	Current fluctuation range	0–100%
	Maximum current droop	≤120% of rated current
	Ripple voltage	≤20mV p-p (with battery connected, resistive load)
	Evaluated noise	≤2mV (with battery connected, resistive load)
	Load voltage compensation	Within ±10% of rated value for load variations of 10–100%

DC Power Supply Systems: Applications and Series