Camtec ESB00163 Series 3-Phase Inrush Current Limiter
Three-phase LED installations, industrial automation systems, and machine building applications face inrush current exposure on every phase simultaneously. A single weak link trips the circuit breaker and takes down the whole circuit. The Camtec ESB00163 limits inrush on all three phases independently, so no single phase event cascades into a sy...
Read MoreThree-phase LED installations, industrial automation systems, and machine building applications face inrush current exposure on every phase simultaneously. A single weak link trips the circuit breaker and takes down the whole circuit. The Camtec ESB00163 limits inrush on all three phases independently, so no single phase event cascades into a system fault.
A 3rd-generation industrial-grade 3-phase inrush current limiter rated at 16A continuous (22.6A peak, 16A RMS), the ESB00163 operates on 200/400/500Vac three-phase networks without requiring a neutral conductor — PE connection is mandatory. Each AC line is monitored and limited independently via an integrated phase controller. Limiting is precise to ±6% every cycle — no NTC thermistor degradation over time.
An integrated phase controller provides relay signal outputs for phase loss, phase sequence error, and asymmetry/overvoltage/undervoltage faults, enabling integration with building management systems, PLCs, and SCADA. The limiting time (Ton: 70–240ms) and release time (Toff: 65–170ms) are user-adjustable via onboard potentiometers — factory settings are 150ms and 100ms respectively.
Two variants are available: ESB00163A supports 200Vac, 400Vac, and 500Vac networks via an onboard voltage selector switch (max capacitive load 1,500µF); ESB00163B supports 200Vac and 400Vac (max capacitive load 2,000µF). The largest permitted upstream MCB is 16A. The ESB00163 is designed for capacitive loads only and is not suitable for use with transformers, AC motors, heaters, or DC voltage applications.
Housed in a robust aluminium IP20 enclosure (95×155×122mm, 1.1 kg) on DIN-Rail TS35mm or wall-mount. Spring-type terminals accept up to 16mm² / 8AWG. CE and UKCA marked, rated to IEC/EN62368-1, IEC/EN61010-1, IEC/EN61010-2-201, IEC/EN60950-1, and IEC/EN60204-1. EN55032 Class B and EN61000-6-3 EMI compliance. MTBF: 377,000h (IEC/EN61709). Operating temperature: −40°C to +70°C (ESB00163B) or +55°C (ESB00163A). Altitude max: 3,000m.
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Features
- Prevents MCB tripping — precise ±6% inrush limiting per phase, every cycle
- 200/400/500Vac 3-phase, 16A continuous (no neutral conductor required)
- Max capacitive load 1,500µF (ESB00163A) or 2,000µF (ESB00163B)
- Per-phase independent limiting, monitoring, and relay outputs
- Phase loss, sequence error, asymmetry/OV/UV fault signalling
- User-adjustable Ton (70–240ms) and Toff (65–170ms)
- PE connection required (Protection Class I)
- Aluminium IP20 housing 95×155×122mm, DIN-Rail TS35mm, 1.1kg
- Spring-type terminals 16mm² / 8AWG
- EN62368-1, EN61010-1, EN60204-1, MTBF 377,000h (IEC/EN61709)
Specifications
| Parameter | ESB00163A(R2) | ESB00163B(R2) |
|---|---|---|
| Article Number | 3041099011 | 3041099001 |
| AC Input Range | 170-230/340-460/425-575Vac | 170-230/340-460Vac |
| AC Nominal Voltage | 200/400Vac/500Vac | 200/400Vac |
| Ambient Temperature | -40°C ... +55°C continuous | -40°C ... +70°C continuous |
| Derating | +45°C 2.5%/°C | +60°C 2.5%/°C |
| Peak Current Limiting ±6% | 22.6A | |
| R.M.S Current Limiting | 16A ±6% | |
| Max. Capacitive Load | 1,500µF | |
| Limiting Time (Ton Power On) | 70-240ms adjustable (150ms Factory Setting) Tolerance ±10ms | |
| Release Time (Toff Low Voltage) | 65-170ms adjustable (100ms Factory Setting) Tolerance ±10ms | |
| Limiting Interval | ≥ 1000ms (Tinterval for AC cont.) | |
| Smallest MCB at 30°C | 8A Curve A, 6A Curve B, 8A Curve Z | |
| Largest MCB allowed | 16A | |
| Line Frequency | 50/60Hz | |
| AC Continuous Current | 16A continuous | |
| Power Supply | self-powered | |
| Power Consumption | typ. 7W (constant @ nominal operation) | |
| Limiting Cycles | 1 cycle/minute with maximum capacitive load (see above) | |
| Internal Protection | temperature protection and burn proof fuse in each AC-line | |
| Cooling | natural convection | |
| Operation Temp. | nominal ambient temperature -40°C ... +70°C | |
| Storage Temp. | -40°C ... +85°C 2 years | |
| ROHS | 2011/65/EU, (EU)2015/863 | |
| REACH | EG No. 1907/2006 | |
| EMI | EN55032 class B, EN61000-6-3 | |
| EMS | EN61000-6-2 | |
| Safety Norms | EN61010-1, EN6101-2-201, EN62368-1 (with ≤3x420Vac), EN60950-1, EN60204-1 | |
| Protection Class I | PE connection required | |
| MTBF Calculation | 377,000h (IEC/EN61709, Siemens SN29500) | |
| MTTF Calculation | 396,000h (+30°C) (IEC/EN61709, Siemens SN29500) | |
| Humidity | 95% (+25°C) not condensing | |
| Pollution Degree | 2 (IEC/EN50178) | |
| Environmental | climatic 3K3, mechanics 3M4 (IEC/EN60721) | |
| Altitude max. | 3000m (9842 ft.) above sea level | |
| Dimension (WxHxD) | 95x155x122mm | |
| Housing Parameters | aluminum metal housing | |
| DIN-Rail | DIN rail TS35mm DIN/EN60715 (TS35/7.5 und TS35/15) | |
| Weight | 1100g | |
| Connections | spring-type terminal with cable protection 0.5...16mm² 22…8AWG in accordance with IEC/EN60664-1, IEC/EN61984 |
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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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