Premium EDS-500 Series DC-UPS / Battery Charger
The Premium EDS-500 Series Battery Charger and DC-UPS is a compact, high-performance 500W solution designed to deliver reliable DC power and battery backup for critical systems. Combining a switched-mode power supply with an intelligent multi-stage battery charger, the EDS-500 ensures continuous operation of connected loads during both normal an...
Read MoreThe Premium EDS-500 Series Battery Charger and DC-UPS is a compact, high-performance 500W solution designed to deliver reliable DC power and battery backup for critical systems. Combining a switched-mode power supply with an intelligent multi-stage battery charger, the EDS-500 ensures continuous operation of connected loads during both normal and mains-failure conditions.
During standard operation, the unit provides a tightly regulated DC output while simultaneously managing battery charging through a controlled three-stage process (bulk, absorption, and float). In the event of a mains interruption, the system transitions seamlessly to battery operation with no voltage interruption, maintaining stable output to sensitive DC loads such as telecommunications equipment, control systems, and industrial automation.
The EDS-500 Series supports a wide AC input range of 110–230Vac and is available in multiple output voltages including 12V, 24V, 48V, and 110V, making it suitable for a broad range of DC infrastructure applications. With configurable charging current via RS-232 and optional communication interfaces such as Ethernet or CAN Bus, the unit can be tailored to meet specific system requirements and integrated into modern monitoring environments.
Designed with operational reliability in mind, the Premium EDS-500 incorporates advanced battery management, including capacity-based battery testing, temperature-compensated charging (with optional sensor), and deep discharge protection to extend battery life and ensure system readiness. Integrated alarm outputs provide real-time indication of key events such as mains failure, battery condition, and system faults, supporting proactive maintenance strategies.
The unit is engineered for demanding industrial environments, offering high efficiency, natural convection cooling, and a wide operating temperature range. For applications requiring enhanced compliance, optional configurations are available for railway environments, including EN50155 and EN45545 standards, making the EDS-500 suitable for rolling stock and trackside installations.
With its combination of compact form factor, configurable performance, and robust protection features, the Premium EDS-500 Series provides a dependable DC power and backup solution for applications where uptime is critical and system integrity cannot be compromised.
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Features
- True DC-UPS operation with no output interruption: The EDS-500 supplies the load directly from the power supply during normal mains operation and switches seamlessly to battery operation during an AC failure, helping maintain uninterrupted power to critical DC systems.
- Integrated 3-stage battery charging: Bulk, absorption, and float charging are built into the unit to support controlled battery charging and improved battery care in standby and backup power applications.
- Configurable charging performance and communications: Maximum charging current can be configured through RS-232, while optional Ethernet or CAN Bus connectivity allows the unit to be adapted for different monitoring and system integration requirements.
- Advanced battery management and protection: Features include battery testing by capacity measurement over the load, low battery alarm, battery cut-off against deep discharge, current limiting, and optional temperature-compensated charging.
- Compact industrial design with natural convection cooling: With a compact chassis, high efficiency, wide operating temperature range, and fanless cooling, the EDS-500 is well suited to demanding industrial, telecom, and control environments.
- Optional railway-ready configuration: A railway version is available for applications requiring EN50155-related EMC performance and EN45545 fire and smoke compliance, supporting use in rolling stock and trackside systems.
Specifications
| INPUT | |
|---|---|
| Input voltage range | 110 … 230Vac |
| Mains frequency range | 47 … 63Hz |
| Inrush current | <30A |
| Power factor | 0.98 at full load |
| Efficiency | See Selection Table |
| OUTPUT | |
|---|---|
| Output voltage range | -0, +20%Von |
| Line regulation | <0,2% |
| Maximum ripple | See Selection Table |
| Maximum load capacitance | See Selection Table |
| BATTERY | |
|---|---|
| Battery charging method | Bulk / absorption / float |
| Maximum charging current | Configurable range depends on model (see Selection Table) |
| Maximum charging current tolerance | 10% |
| Battery temperature compensation | 2.5mV/K/cell |
| Battery test | By capacity measurement discharging over the load |
| ENVIRONMENTAL | |
|---|---|
| Storage temperature | -25 … 80ºC |
| Operating temperature | -25 … 55ºC (Po = nom) -25 … 70ºC (Po = 62.5% nom) |
| Maximum relative humidity | 95% with no condensation |
| Cooling | Natural convection |
| MTBF | 350,000h @ 40°C according to IEC61709 |
| EMC | |
|---|---|
| Emission | EN61000-6-4 (EN50121-3-2 and EN50121-4 for option T) |
| Immunity | EN61000-6-2 (EN50121-3-2 and EN50121-4 for option T) |
| SAFETY | |
|---|---|
| Safety | IEC62368-1 |
| Dielectric strength Input / Output, Signals | 3000Vac 50Hz 1 min |
| Dielectric strength Earth / Input | 1500Vac 50Hz 1 min |
| Dielectric strength Output / Earth, Signals | 500Vac 50Hz 1 min |
| Fire and smoke | EN45545-2 HL1 HL2 and HL3 (only for option T) |
| MECHANICAL | |
|---|---|
| Size | 186.5 x 87 x 124.4 mm |
| Weight | 1490 gr. |
| CONTROL | |
|---|---|
| Battery reconnection button | For starting up without mains presence |
| LEDs | Power on (Green) Charging (Ambar): Blink: Quick Charge; Fixed: Floating/Battery charged Battery Failure (Red): Led on: Battery test failed; Slow blink: Battery not present; Fast blink: Battery temperature sensor not present AC or charger failure (Red): Led on: Vout out of range; Slow blink: AC input out of range |
| Mains failure alarm | Mains out of range. Closed contact when alarm |
| Battery low alarm | Battery discharged. Closed contact when alarm |
| Urgent failure alarm | Maintenance required. Closed contact when alarm. Alarm cases: Battery not present; Battery test failed; Charger malfunction; Charger temperature out of range |
| UPS failure alarm | Vout out of range. Closed contact when alarm |
| Alarms spec - Type | Solid state relay |
| Alarms spec - Maximum switching voltage | 60 V |
| Alarms spec - Maximum switching current | 0.2A |
| PROTECTIONS | |
|---|---|
| Against overloads and short-circuits | Current limiting |
| Battery protection against deep discharges | Battery cut off |
| Battery protection against overloads | Current limiting and fuse |
| Against input over-currents | Fuse |
| ACCESSORIES | |
|---|---|
| DIN rail clip set | NP-9441 |
| Mounting brackets set | NP-9442 |
| Temperature sensor (cable 2m) | NP-9433 |
| STANDARDS & APPROVALS | |
|---|---|
| Low voltage / electrical equipment safety | 2014/35/EU; SI 2016 No 1101 |
| EMC / electromagnetic compatibility | 2014/30/EU; SI 2016 No 1091 |
| RoHS | 2011/65/EU Annex II and amendment 2015/863/EU; SI 2012 No. 3032 |
| Applied standards | EN60950-1:2005; EN62368-1:2014; EN61000-6-4:2019; EN61000-6-2:2016 |
| Option T standards | EN50121-3-2:2016 + A1:2019; EN50121-4:2016 + A1:2019 |
| CE marking year | 2020 |
| UKCA marking year | 2021 |
| RAILWAY OPTION T (EN50155:2021) | |
|---|---|
| Working altitude | Up to 2000m |
| Ambient temperature | Class OT2 (-40 to 55°C): load <100% Class OT4 (-40 to 70°C): load <62.5% |
| Switch-on extended operating temp. | ST1 (OTx +15°C, test cycle B) |
| Rapid temperature variations | H1 (No requirements) |
| Shocks and vibrations | According EN61373:2010 Category 1 class B |
| Relative humidity | Up to 95% |
| Protective coating for PCB assemblies | Class PC2 |
| Fire behaviour requirements | EN45545-2:2020 |
Selection Table
| Part Number | Nom [V] | Float [V] * | Const Volt [V] * | Cut off [V] * | Max Ripple [mV] | Max Cap [mF] | Cont. [A] | 1 min [A] | From Battery [A] | Effic [%] | Min [A] | Nom [A] * | Max [A] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EDS-500-5243 | 12 | 13.6 | 14.5 | 10.5 | 100 | 15 | 36.7 | 36.7 | 50 (30s) | 90 | 2.5 | 16 | 20 |
| EDS-500-5247 | 24V | 27.1 | 29.0 | 21 | 100 | 15 | 18.4 | 20 | 30 (30s); 32 (1s) | 92 | 1.25 | 8.0 | 10 |
| EDS-500-5249 | 48V | 54.2 | 58.0 | 42 | 150 | 15 | 9.19 | 10 | 15 (30s); 16 (1s) | 93 | 0.63 | 4.0 | 5.0 |
| EDS-500-5251 | 110V | 124.2 | 132.9 | 96.2 | 300 | 2.7 | 4.02 | 4.5 | 5 (30s); 7 (1s) | 93 | 0.3 | 1.75 | 2.2 |
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.
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