Home page

EPS Fire Emergency Power Supply

Hotline:

+86-21-65442001

Product Overview

Dual-power source switching, high reliability, long service life—host lifespan exceeds 20 years.

The intelligent battery charging management function enables automatic switching between equalization and float charging, effectively extending battery life. It also features automatic monitoring of battery status and provides self-protection against overcharging and over-discharging.

It employs CPU control to ensure precise operation at each motion point, with LED display and audible alarms for clear visibility of the operating status.

Equipped with fire linkage functionality, it can achieve remote monitoring via RS232 or RS485 interface.

It features protection functions such as overvoltage, undervoltage, overtemperature, overcurrent, and short-circuit protection.

Modular design for easy maintenance.

Environmental conditions

1	Ambient temperature	Not higher than +50℃ and not lower than -10℃, with the average temperature over 24 hours not exceeding +35℃.
2	Altitude	Altitude not exceeding 2000m.
3	Relative humidity	The daily average shall not exceed 95%, and the monthly average shall not exceed 90%.
4	Pollution Level	Level III.
5		Locations free from fire hazards, explosion risks, severe contamination, chemical corrosion, and intense vibrations.
6		A place free from severe vibrations and jolts.

Performance parameters

Model Specifications		LJ-EPS 2.2~22kW	LJ-EPSS 25~75kW	LJ-EPSS 93~500kW
Input	Voltage	380VAC ±20%
	Number of phases	Three-phase four-wire + ground wire
	Frequency	50 Hz ±10%
Output	Voltage	Normal operation: Same as mains voltage; Emergency operation: 380VAC ±3%.
	Waveform	Sine wave (THD ≤ 3%)
	Frequency	Normal operation: Synchronized with the utility power; Emergency operation: 50 Hz ± 0.5%
	Output branch	Route 1 (expandable)
	Output branch type	Continuous-type, Non-continuous-type, Fire-linked type
Battery	Battery form	Sealed and water-free
	Nominal voltage	216VDC	324VDC	480VDC
Emergency standby time		90 minutes (can be adjusted as needed)
Conversion time		<5s (customizable for special cases: ≤0.25s, ≤0.1s, ≤2.5ms, 0ms)
Protection function		Overcharge, undervoltage, excessive humidity, overload, short circuit, overvoltage, and undervoltage protection for batteries.
Communication		RS232/RS485, communication protocol: Modbus or as per customer requirements; remote monitoring card with SNMP (optional)
Overload capacity		120% of normal operation; 150% for 1 minute
Display		LCD, LED (or touchscreen)
Efficiency		During emergency power supply: ≥95% Normal operation: 299%
Work environment	Noise (1m distance)	No noise when powered by mains electricity; during emergency operation: ≤55 dB; for models above 75 kW: ≤60 dB.
	Humidity	10-90% non-condensation
	Temperature	20℃~40℃
	Altitude	≤2000 m (>2000 m: for every additional 100 m, the power output is reduced by 1%)
Adapt to the load		Suitable for inductive loads and inductive-capacitive hybrid loads.
Size/Weight		See table.
Door opening method and cable entry method		Front door single-opening, rear door double-opening, bottom-entry wiring (standard model)

LKRM16-12/24KV Eco-friendly Gas-Insulated Ring Main Unit

Smart AC/DC Integrated Power Supply

GZDC-type DC power supply system

Commercial energy storage cabinet

Product Message

Contact us

+86-18117491336

Address：

No. 219 Yuanxin Road, Baoshan District, Shanghai, China

Nantong Factory :

No. 90, Jiangtai Road, Suxitong Science and Technology Industrial Park, Nantong City, Jiangsu Province, China
Tel：+86-21-65442001 +86-513-81501999
Sales Department : +86-513-81501999Extension 8805/8815
Fax: 021-65367748
E-mail：ljdk@ljdk.cn(Inquiry Email)

Scan to follow us

Business license