Inrush Current Limiters

Camtec ESB101 Series Inrush Current Limiter

The Camtec ESB101 Series is a 2nd-generation, cost-effective inrush peak and RMS current limiter supporting both 115Vac and 230Vac networks across 16⅓ Hz to 440Hz. Eight models span 5A to 48A peak limiting with capacitive load ratings from 1,000µF to 10,000µF. Self-powering — no external supply required. Integrated bypass relay and thermal prote...

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The Camtec ESB101 Series is a 2nd-generation, cost-effective inrush peak and RMS current limiter supporting both 115Vac and 230Vac networks across 16⅓ Hz to 440Hz. Eight models span 5A to 48A peak limiting with capacitive load ratings from 1,000µF to 10,000µF. Self-powering — no external supply required.

Integrated bypass relay and thermal protection. ESB101.LED models optimised for LED driver inrush profiles. ESB101.05UPS suits UPS applications. 2TE (37.2mm) IP20 DIN-Rail housing. Select models carry ANSI/UL508 and CAN/CSA C22.2 listings (UL File E485106) and GOST EAC certification. Spring-type terminals up to 6mm² / 10AWG.

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Features
  • Peak and RMS inrush current limiter
  • 90-132Vac / 184-264Vac, 16A continuous
  • Self-powering — no external supply required
  • 8 models: 5A to 48A peak limiting
  • Capacitive load up to 10,000µF
  • DIN-Rail TS35mm 2TE (37.2mm)
  • IP20 UL94V-0 housing DIN43880
  • Spring-type terminals 6mm² / 10AWG
  • EN62368-1, UL508, CSA C22.2, GOST EAC
  • Operating temperature -40°C to +60°C
Specifications
Parameter ESB101.05UPS ESB101.16 ESB101.23 ESB101.23S ESB101.33 ESB101.LED.230VAC ESB101.LED.115VAC ESB101.23S.115VAC
Peak Current Limiting ±6% 5A 16A 23A 23A 33A 48A 43A 23A
R.M.S Current Limiting ±6% 3.5A 11.3A 16.3A 16.3A 23.3A 33.9A 30.4A 16.3A
Maximum Allowed Capacitive Load 1,000uF 1,500µF 2,000uF 2,000uF 4,000µF 6,000uF 10,000uF 4,000µF
Limiting Time (Ton Power On) 900ms (±50ms) 300ms (±50ms) 300ms (±50ms) 500ms (±50ms) 300ms (±50ms) 300ms (±50ms) 300ms (±50ms) 500ms (±60ms)
Release Time (Toff Low Voltage) 1400ms (±50ms) 500ms (±50ms) 500ms (±50ms) 800ms (±80ms) 500ms (±50ms) 550ms (±50ms) 550ms (±50ms) 900ms (±80ms)
Limiting Interval (Tinterval for AC cont.) ≥ 900ms ≥ 900ms ≥ 900ms ≥ 1400ms ≥ 900ms ≥ 900ms ≥ 900ms ≥ 1400ms
Quickest advisable Circuit breaker at 30°C A2A A6A
B4A
Z6A		 A10A
B6A
Z10A		 A10A
B6A
Z10A		 A13A
B8A
Z13A		 B13A
A16A		 B13A
Z16A		 A10A
B6A
Z10A
AC Input Range 184-264Vac 184-264Vac 184-264Vac 184-264Vac 184-264Vac 184-264Vac 90-132Vac 90-132Vac
AC Continuous Input Range 230Vac 230Vac 230Vac 230Vac 230Vac 230Vac 115Vac 115Vac
Line Frequency 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz 16⅓ Hz – 440Hz
Switch-On Voltage 144Vac 144Vac 144Vac 144Vac 144Vac 144Vac 79Vac 79Vac
AC Lower Margin 52Vac (AC dump / drop out voltage) 52Vac (AC dump / drop out voltage) 52Vac (AC dump / drop out voltage) 52Vac (AC dump / drop out voltage) 52Vac (AC dump / drop out voltage) 52Vac (AC dump / drop out voltage) 28Vac (AC dump / drop out voltage) 28Vac (AC dump / drop out voltage)
AC Current 16A continuous load current
Power Supply No external power supply required, item is self-powering
Power consumption 2.2W @ 115Vac / 1.1W @ 230Vac
Limiting Cycles Between each limiting action shall be a break of 20 sec., to let the device cool down until the next limiting starts
Internal Protection Thermal fuse protects from overheat & fire
Cooling Natural convection
Operation Temp. Ambient temperature -40°C ... +60°C continuous (see operations temperature list for details in this manual)
Storage Temp. -40°C ... +85°C for 2 years
EMI EN55032 class B, EN61000-6-3
EMS EN61000-6-2
Safety Norms EN61010-1, EN61010-2-201, EN62368-1, EN60950-1, several units: ANSI/UL508 & CAN/CSA C22.2 (see product list in this manual), UL-File: E485106
Safety Class Class II
ROHS conformity ROHS Directive 2011/65/EU
REACH conformity REACH Directive 1907/2006
MTBF Calculation 300,000h (IEC/EN61709, Siemens SN29500)
MTTF Calculation 384,000h (+30°C) (IEC/EN61709, Siemens SN29500)
Humidity 95% (+25°C) not condensing
Pollution Degree 2 (IEC/EN50178)
Environmental Thermal environment 3K3, mechanics 3M4 (IEC/EN60721)
Altitude max. 4000m (13123 ft.) above sea level
Dimensions (WxHxD) (Wide=2TE), 37.2x107.9x60.2mm
Housing Parameters UL94V-0 (E45329), ABS/NH6020, RTI 110°C, housing for DIN/VDE0603 cutout box and for wall mount
DIN-Rail DIN-Rail TS35mm DIN/EN60715 (TS35/7.5 und TS35/15)
Weight 0.12kg / 0.26lbs
Connections Spring-type terminal solid max. 0.18...6mm² 26…10AWG according with IEC/EN60664-1, IEC/EN61984
Use copper conductors only. Wire stripping length 7mm. Tightening torque per terminal block is 0.5 - 0.6 Nm / 4.5 - 5.3 lbf-in
Selection Table
Product Code Article No. IEC/EN 62368-1
IEC/EN 60950-1
IEC/EN 61010-1
IEC/EN 61010-2-201		 ANSI/UL508
(UL-File E485106)		 CAN/CSA C22.2
(UL-File E485106)		 GHOST EAC #0658490
RU C-DE.MO10.B.02970
ESB101.16(R2) 3041081001CA Yes Yes Yes Yes
ESB101.23S(R2) 3041081002CA Yes Yes Yes Yes
ESB101.23(R2) 3041081003CA Yes Yes Yes Yes
ESB101.33(R2) 3041081004CA Yes Yes Yes Yes
ESB101.LED.230VAC(R2) 3041081005CA Yes Yes Yes Yes
ESB101.LED.115VAC(R2) 3041081006CA Yes Yes Yes Yes
ESB101.23S.115VAC(R2) 3041081007CA Yes Yes Yes Yes
ESB101.05UPS(R2) 3041081009CA Yes Not listed Not listed Yes
Technical Drawings
Camtec_ESB101.LED.230Vac_GA_Drawing
Downloads
Camtec_ESB101.LED.Datasheet.pdf
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.