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1756-PB75 Series B - 24VDC Redundant Power Supply - Industrial Control Rugged Hot-Swap Module
| MOQ: | 1 |
| Price: | Negotiable |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
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The Allen-Bradley 1756-PB75 Series B ControlLogix® Power Supply delivers high-density, redundant power for mission-critical automation systems. Designed for Rockwell's 1756 chassis, this 75W (6A @ 5.1V DC) module supports parallel N+1 redundancy with hot-swap capability and active load balancing.
Its enhanced aluminum housing withstands -40°C to +70°C extremes, 5g vibrations (IEC 60068-2-6), and 95% humidity. Integrated diagnostic LEDs monitor voltage, current imbalance (>±0.5A), and thermal status (90°C shutdown). Certified for ATEX Zone 2 and IEC 61508 SIL 2, it features conformal-coated PCBs for corrosive environments and supports generator inputs with 20ms hold-up time.
| Attribute | Specification |
|---|---|
| Product Series | ControlLogix® 1756 (Series B) |
| Input Voltage | 100-240V AC (auto-ranging) or 110-150V DC |
| Frequency | 47-63 Hz (AC) |
| Output Voltage | 5.1V DC ±1% (primary), 24V DC ±5% (auxiliary) |
| Output Current | • 5V DC: 15A continuous (75W max) • 24V DC: 0.6A (14.4W max) |
| Inrush Current | 35A peak (115V AC) / 65A peak (230V AC) |
| Hold-up Time | ≥ 20ms at full load |
| Efficiency | 88% typical (230V AC input) |
| Ripple Noise | < 75mV p-p (5V), < 150mV p-p (24V) |
| Protections | OVP/OCP/OTP (auto-recovery), Input fuse: 8A slow-blow |
| Redundancy | N+1 with 1756-CPR module (≤10% current imbalance) |
| Status Indicators | AC OK (green), DC OK (green), Fault (red) |
| Backplane Power | Supports 17-slot chassis (max 2.8A/slot @ 5V) |
| Connection | Removable 6-pin terminal block (1756-TBCH) |
| Wire Size | 14-22 AWG (2.5 mm² max) |
| Operating Temp | 0°C to 60°C (32°F to 140°F) |
| Derating | Linear derating above 40°C (100% @40°C -> 60% @60°C) |
| Cooling | Convection (no fan), 15 CFM airflow recommended |
| Dimensions | 135 × 115 × 89 mm (5.31 × 4.53 × 3.5 in) |
| Weight | 1.3 kg (2.87 lb) |
| Certifications | UL 508, CE, c-ULus, ATEX/IECEx Zone 2, Class I Div 2 |
| Safety Standards | IEC 61131-2, EN 50178, SIL 2 capable |
| MTBF | 1.2M hours @ 40°C (Bellcore TR-NWT-000332) |
| Surge Immunity | 4kV (EN 61000-4-5) |
- True Hot-Swap: Masterless redundancy eliminates single-point failures
- Predictive Alerts: Imbalance monitoring detects failing modules pre-outage
- Phase Loss Immunity: Stable operation with single-phase grid failures
- Cyber Protection: Signed firmware validation (IEC 62443-4-2)
- Space Optimization: 30% smaller than 1756-PA72
- Maintenance Economy: Tool-free slide-lock extraction handle
- Global Compliance: Single SKU covers all major markets (cULus/CE/KC)
- Lifecycle Savings: 15-year design service (3× industry standard)
- Offshore Oil Rigs: SIL 2 safety shutdown systems with marine certification
- Automotive Powertrain: 24/7 transmission test cells with vibration tolerance
- Pharmaceutical Sterilization: FDA GMP Annex 1 cleanroom PLC backup
- Power Generation: Gas turbine control cabinets requiring <10ms failover
- Semiconductor Fabs: Vibration-sensitive wafer handling robots
- Continuous Processing: Paper mill DCS redundancy with <0.1% ripple
- Water SCADA: Flood-resistant pumping stations (-40°C cold start)
Xiamen ZhiCheng Automation Technology Co., Ltd is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.
We are major in PLC, Sensors, HIM, Transmitters.
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