Schaefer B1591-30 | 13.8Vdc | 600W | AC/DC Battery Charger | Wall Mount
The Schaefer B1591-30 is a 13.8Vdc, 600W battery charger engineered for railway signalling and level crossing applications, with Queensland Rail Type Approval C0192 confirming its suitability across both Queensland Rail and Aurizon networks. Built for reliability in harsh environments, it features conformal-coated electronics and a reinforced ch...
Read MoreThe Schaefer B1591-30 is a 13.8Vdc, 600W battery charger engineered for railway signalling and level crossing applications, with Queensland Rail Type Approval C0192 confirming its suitability across both Queensland Rail and Aurizon networks.
Built for reliability in harsh environments, it features conformal-coated electronics and a reinforced chassis to resist humidity, vibration, and contamination within the rail corridor. The charger utilises natural convection cooling for silent, maintenance-free operation and dependable performance at temperatures up to +75 °C.
It supports parallel and redundant configurations, combining built-in decoupling diodes with active current sharing to maintain balanced load distribution and enhance system resilience. With comprehensive protection, including overvoltage, short-circuit, and reverse-polarity safeguards, plus DC OK and Converter Fail relay outputs for remote monitoring, the B1591-30 ensures long-term stability and safety for critical rail signalling infrastructure.
It is also widely used as an approved replacement for legacy Enatel RW Series chargers, offering a reliable upgrade path for refurbishment and modernisation programs.
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Features
- Queensland Rail Type Approval C0192 – validated for signalling and level crossing applications.
- Natural convection cooling – no fans, reducing potential failure points and increasing long-term reliability.
- High-temperature operation up to 75 °C for stable performance in signalling and equipment huts
- Conformal-coated electronics and reinforced chassis resist humidity, vibration, and contamination common within the rail corridor.
- Supports parallel and redundant operation with active current sharing for load balancing and system redundancy.
- High transient protection, reverse polarity protection, and monitoring via Charger Fail and DC OK relay outputs
Specifications
| INPUT | |
|---|---|
| Voltage Range | 115V AC ±20% or 230V AC +15%/-20%, unit switches off at under and overvoltage |
| Frequency | 50/60Hz |
| Recommended Input Fuse / MCB | External 16A time lag / K-characteristic related to fuses manufactured by ABB |
| No-load Input Power | Approx. 6W |
| Switch-on Time | 300ms typical |
| Inrush Current | Limiting by thermistor |
| OUTPUT | |
|---|---|
| Voltage | 13.8V DC (adjustable 12 … 16V DC) |
| Current | 34A |
| Recommended Output Fuse | External 40A time lag / B-characteristic related to fuses manufactured by ABB |
| Line Regulation (±10%) | 0.1 % |
| Load Regulation (10-90%) | < 2% |
| Efficiency at Full Load | Approx. 85% |
| Switching Frequency | Approx. 33 kHz |
| Ripple | ≤ 1% +30mVp-p |
| Load Transient (10-90-10%) | 6 % typical |
| Response Time to ±1 % | 2ms typical |
| Turn-on Rise Time | Softstart, 300ms typical |
| Overload Protection | Current limited to 70 ... 110 % of full load |
| Overvoltage Protection | OVP switches off the module at Uout = 18V (with automatic return to operation) |
| Remote Sensing | Sense lines have to be connected to the output or to the load under regard of polarity |
| Redundant Operation | Via installed decoupling diode in the (+) output line |
| Parallel Operation | Includes Current Sharing with Interrupt in case of faulty unit in parallel operation |
| Reverse Polarity Protection | Via anti-parallel diode in the output (output fuse required) |
| Transient and Surge Protection | Varistor on Input and Output to meet 2kV transient/surge in accordance with EN61000-4-4 / EN61000-4-5 |
| MECHANICAL | |
|---|---|
| Mounting Type | Wall |
| Dimensions | 140 x 360 x 260mm (WxHxD) |
| Weight | Approx. 6.3 kg |
| Increased Mechanical Strength | For shock and vibration in accordance with EN61373 |
| Protection Category | IP20 |
| Mounting Instructions | Only in provided position (cooling fin vertical). Above and below the unit at least 40mm distance to neighbouring parts. |
| ENVIRONMENTAL | |
|---|---|
| Cooling | Natural Convection |
| Humidity | Up to 99% RH, non-condensing due to additional Tropical Protection (Conformal Coating) applied to all PCBs. |
| Temperature Coefficient | 0.02 %/°C typical |
| Operating Temperature | -20°C to +75°C |
| Internal Temperature | Switch 90°C heatsink temperature for emergency power off |
| Load Derating | 2.5 %/°C from +55°C |
| Storage Temperature | -40°C to +85°C |
| ALARMS / MONITORING | |
|---|---|
| Charger Failure | Indicating with relay |
| DC-OK with Relay (output voltage monitoring) | Switching threshold: UOUT>10.8VDC |
| RELIABILITY | |
|---|---|
| MTBF | Approx. 100.000 h at 40°C (in acc. to MIL-HDBK-217E Notice 1) |
| SAFETY & STANDARDS | |
|---|---|
| Safety / Construction | Acc. to to EN/IEC 61010-2-201 + EN/IEC 61010-1 |
| Earth Leakage | < 3.5mA, acc. to EN/IEC 61010-2-201 + EN/IEC 61010-1 |
| EMC Compatibility | Acc. to EN 61000-6-2 / EN 61000-6-4 / EN61000-4-4 / EN61000-4-5 |
| Safety Class | 1 (equipment with protective earth connection) |
| Overvoltage Category | II |
| Pollution Degree | 2 |
| Maximum Installation Altitude | 2000m |
| Isolation Resistance | > 10 MΩ at 500V DC |
| Isolation Test | Acc. to EN/IEC 61010-2-201 + EN/IEC 61010-1 |
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.