{"title":"inrush-current-limiters","description":null,"products":[{"product_id":"camtec-esb201-series","title":"Camtec ESB201 Series Inrush Current Limiter","description":"\u003cp\u003eProtecting high-density LED installations from inrush current damage is a \u003cbr\u003ewiring design challenge — especially where multiple switch-mode LED drivers share \u003cbr\u003ea single 16A circuit. The Camtec ESB201 Series solves it without adding bulk. \u003cbr\u003eA 2nd-generation peak and RMS inrush current limiter, the ESB201 actively limits \u003cbr\u003einrush for 300ms on power-on, then bypasses via an integrated relay so the full \u003cbr\u003eload current passes through unimpeded. No NTC thermistor workarounds — limiting \u003cbr\u003eis precise to ±6% every time, regardless of prior inrush history.\u003c\/p\u003e\n\u003cp\u003eAt just 35mm high, the ESB201 is engineered to sit inside LED downlight \u003cbr\u003echannels and luminaire housings where space is at a premium. It is fully \u003cbr\u003eself-powering — no external supply required — and supports both 115Vac and \u003cbr\u003e230Vac networks across 16⅓ Hz to 440Hz, making it equally suited to standard \u003cbr\u003emains, generator-fed, and marine\/rail power environments.\u003c\/p\u003e\n\u003cp\u003eTwo models are available: the ESB201.LED.230VAC handles up to 6,000µF \u003cbr\u003ecapacitive load at 48A peak (33.9A RMS), and the ESB201.LED.115VAC handles up \u003cbr\u003eto 10,000µF at 43A peak (30.4A RMS). Both support up to 16A continuous load \u003cbr\u003ecurrent. In practical terms, this means a single 16A MCB circuit can safely \u003cbr\u003ecarry far more LED drivers than would otherwise be possible — reducing circuit \u003cbr\u003ebreaker count, cabling cross-section, and installation cost without compromising \u003cbr\u003eprotection.\u003c\/p\u003e\n\u003cp\u003eThe ESB201 is designed for capacitive loads only and is not suitable for use \u003cbr\u003ewith transformers, AC motors, heaters, or DC voltage applications. Rated to \u003cbr\u003eIEC\/EN62368-1, IEC\/EN61010-1, and EN55032 Class B. IP40 UL94V-0 ABS-PA765 \u003cbr\u003ehousing with spring-type terminals up to 6mm² \/ 10AWG. Operating temperature \u003cbr\u003e-40°C to +45°C continuous, +55°C short time.\u003cbr\u003e\u003c\/p\u003e","brand":"Powerbox","offers":[{"title":"ESB201.LED.230VAC(R2)","offer_id":47908031267046,"sku":"ESB201.LED.230VAC(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB201.LED.115VAC(R2)","offer_id":47908031299814,"sku":"ESB201.LED.115VAC(R2)","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb201-inrush-current-limiter.png?v=1782111033"},{"product_id":"camtec-esb001-series","title":"Camtec ESB001 Series Inrush Current Limiter","description":"\u003cp\u003eThe Camtec ESB001 is a precision inrush current limiter designed for capacitive loads on 230Vac 16A networks, operating across a wide frequency range of 16⅓Hz to 440Hz. Built for LED applications, complex automation systems, and machine building environments, the ESB001 effectively eliminates nuisance tripping of pre-installed circuit breakers and prevents damage to relay and line switch contacts, without relying on a simple NTC solution. It features an integrated bypass relay that seamlessly transitions the load to direct AC connection after the limiting period, and an internal thermal fuse that protects against overheating and fire.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAvailable in two variants, the ESB001.24.230Vac (24A peak, 2,200µF max capacitive load) and the ESB001.LED.230Vac (43A peak, 5,000µF max capacitive load), the ESB001 is self-powered, requiring no external supply. It draws just 1.1W at 230Vac and operates reliably from -40°C to +55°C. The compact DIN-rail and wall-mountable IP20 housing (17.9 × 89.5 × 62.8mm, 1TE wide) fits standard TS35mm rails and DIN\/VDE0603 cutout boxes. Spring-type terminals accept conductors up to 4mm² \/ 12AWG for fast, tool-free installation.\u003cbr\u003e\u003cbr\u003eCertified to EN62368-1 and compliant with EN55032 Class B EMI, EN61000-6-2 EMS, and RoHS\/REACH directives, the ESB001 is a fully compliant, field-proven solution for protecting AC distribution networks in commercial and industrial installations.\u003c\/p\u003e","brand":"Powerbox Australia","offers":[{"title":"ESB001.24.230VAC","offer_id":47908031660262,"sku":"ESB001.24.230VAC","price":0.0,"currency_code":"NZD","in_stock":true},{"title":"ESB001.LED.230VAC","offer_id":47908031693030,"sku":"ESB001.LED.230VAC","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb001-inrush-current-limiter.png?v=1782111046"},{"product_id":"camtec-esb303-series","title":"Camtec ESB303 Inrush Current Limiter 230\/400Vac 3-Phase","description":"\u003cp\u003eManaging inrush current across three-phase LED installations and machine building applications is significantly more complex than single-phase — each phase conductor needs independent limiting, and most budget solutions treat all three as one. The Camtec ESB303 handles each phase separately.\u003c\/p\u003e\n\u003cp\u003eA 3rd-generation peak and RMS inrush current limiter for 3-phase AC networks with a neutral conductor, the ESB303 actively limits inrush for 350ms on power-on across all three phase conductors, then bypasses via integrated relays so full load current passes through unimpeded. Limiting is precise to ±6% every cycle — no NTC thermistor degradation over time.\u003c\/p\u003e\n\u003cp\u003eThe ESB303 can be configured two ways: as three independent single-phase 230Vac limiters running in parallel (3×230Vac), or as a single 3×400Vac inrush limiter. Each phase connection supports up to 6,000µF of capacitive load at 48A peak (33.9A RMS). In practical terms, a single 16A MCB per phase can safely carry far more LED drivers or switch-mode power supplies than would otherwise be possible — reducing breaker count, cabling cross-section, and installation cost.\u003c\/p\u003e\n\u003cp\u003eThe neutral conductor (N) must be connected for the device to operate — the ESB303 powers itself between the phase conductors and neutral. For 3-phase systems without a neutral conductor, use the ESB00163 or ESB00323. The ESB303 is designed for capacitive loads only and is not suitable for use with transformers, AC motors, heaters, or DC voltage applications.\u003c\/p\u003e\n\u003cp\u003eHoused in a compact 5TE (97.8mm wide) IP20 UL94V-0 ABS DIN-Rail enclosure. Rated to IEC\/EN62368-1, IEC\/EN61010-1, IEC\/EN61010-2-201, IEC\/EN60950-1 with ANSI\/UL508 and CAN\/CSA C22.2 listings. Spring-type terminals up to 6mm² \/ 10AWG. Operating temperature −40°C to +60°C continuous.\u003c\/p\u003e","brand":"Powerbox","offers":[{"title":"ESB303.LED.200\/400(R2)","offer_id":47908031922406,"sku":"ESB303.LED.200\/400(R2)","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb303-inrush-current-limiter.png?v=1782111057"},{"product_id":"camtec-esb101-series","title":"Camtec ESB101 Series Inrush Current Limiter","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eIntegrated 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.\u003c\/p\u003e","brand":"Powerbox","offers":[{"title":"ESB101.05UPS(R2)","offer_id":47908032151782,"sku":"ESB101.05UPS(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.16(R2)","offer_id":47908032184550,"sku":"ESB101.16(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.23(R2)","offer_id":47908032217318,"sku":"ESB101.23(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.23S(R2)","offer_id":47908032250086,"sku":"ESB101.23S(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.33(R2)","offer_id":47908032282854,"sku":"ESB101.33(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.LED.230VAC(R2)","offer_id":47908032315622,"sku":"ESB101.LED.230VAC(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.LED.115VAC(R2)","offer_id":47908032348390,"sku":"ESB101.LED.115VAC(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB101.23S.115VAC(R2)","offer_id":47908032381158,"sku":"ESB101.23S.115VAC(R2)","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb101-inrush-current-limiter.png?v=1782111081"},{"product_id":"camtec-esb00351-series","title":"Camtec ESB00351 30A Inrush Current Limiter 230Vac","description":"\u003cp\u003eHigh-current LED installations, machine building, and industrial automation systems running on 230Vac often need more than 16A — and standard inrush limiters top out there. The Camtec ESB00351 is built for the next tier: 30A continuous circuits where inrush events are larger and the consequences of tripping a circuit breaker are more serious.\u003c\/p\u003e\n\u003cp\u003eAn industrial-grade single-phase inrush current limiter rated at 30A continuous (35A peak, 24.8A RMS), the ESB00351 operates on 184–264Vac networks at 47–63Hz. Limiting is precise to ±6% every cycle — no NTC thermistor degradation over time. Maximum capacitive load is 10,000µF. After the 150ms limiting period, an integrated bypass relay connects the load directly to the AC network so full load current passes through unimpeded.\u003c\/p\u003e\n\u003cp\u003eThe ESB00351 is self-powering and requires no external supply, but PE connection is mandatory — this is a Protection Class I device. Natural convection cooling is used; for high ambient temperatures or enclosed installations, forced convection of \u0026gt;20 CFM may be required. The largest permitted upstream MCB is 30A. A 20-second cool-down period between successive limiting actions is required to prevent overheating.\u003c\/p\u003e\n\u003cp\u003eThe ESB00351 is designed for capacitive loads only and is not suitable for use with transformers, AC motors, heaters, or DC voltage applications. Note the narrower frequency range (47–63Hz) compared to other ESB series — it is not rated for generator, marine, or rail power environments.\u003c\/p\u003e\n\u003cp\u003eHoused in an aluminium IP20 metal enclosure (65×124×96.6mm, 0.81 kg) on DIN-Rail TS35mm. Spring-type terminals accept up to 16mm² \/ 6AWG (strip 12mm, torque 1.2–2.2 Nm). 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 EMI compliance, EN61000-6-3 emission and EN61000-6-2 immunity standards. MTBF: 622,732h (IEC61709). Operating temperature: −40°C to +60°C continuous. Altitude max: 2,000m.\u003c\/p\u003e","brand":"Powerbox","offers":[{"title":"ESB00351(R2)","offer_id":47908033036518,"sku":"ESB00351(R2)","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb00351-inrush-current-limiter.png?v=1782111095"},{"product_id":"camtec-esb00163-series","title":"Camtec ESB00163 Series 3-Phase Inrush Current Limiter","description":"\u003cp\u003eThree-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.\u003c\/p\u003e\n\u003cp\u003eA 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.\u003c\/p\u003e\n\u003cp\u003eAn 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.\u003c\/p\u003e\n\u003cp\u003eTwo 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.\u003c\/p\u003e\n\u003cp\u003eHoused 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.\u003c\/p\u003e","brand":"Powerbox","offers":[{"title":"ESB00163A(R2)","offer_id":47908033265894,"sku":"ESB00163A(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB00163B(R2)","offer_id":47908033298662,"sku":"ESB00163B(R2)","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb00163-inrush-current-limiter.png?v=1782111103"},{"product_id":"camtec-esb00323-series","title":"Camtec ESB00323 32A Series 3-Phase Inrush Current Limiter","description":"\u003cp\u003eHigh-current 3-phase installations — machine building, industrial automation, large-scale LED systems — face inrush current exposure on every phase simultaneously. A single weak link trips the circuit breaker and takes down the whole circuit. The Camtec ESB00323 limits inrush on all three phases independently, so no single phase event cascades into a system fault.\u003c\/p\u003e\n\u003cp\u003eA 3rd-generation industrial-grade 3-phase inrush current limiter rated at 32A continuous (68.6A peak, 48A RMS), the ESB00323 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.\u003c\/p\u003e\n\u003cp\u003eAn 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. Maximum capacitive load is 2,000µF.\u003c\/p\u003e\n\u003cp\u003eTwo variants are available: ESB00323A supports 200Vac, 400Vac, and 500Vac networks via an onboard voltage selector switch; ESB00323B supports 200Vac and 400Vac. The largest permitted upstream MCB is 32A. The ESB00323 is designed for capacitive loads only and is not suitable for use with transformers, AC motors, heaters, or DC voltage applications.\u003c\/p\u003e\n\u003cp\u003eHoused in a robust aluminium IP20 enclosure (95×155×122mm, 1.1kg) on DIN-Rail TS35mm. Spring-type terminals accept up to 16mm² \/ 8AWG. Rated to IEC\/EN62368-1, IEC\/EN61010-1, IEC\/EN61010-2-201, IEC\/EN60950-1, and IEC\/EN60204-1. EN55032 Class B EMI compliance. MTBF: 377,000h (IEC\/EN61709). Operating temperature: −40°C to +70°C (ESB00323B) or +55°C (ESB00323A).\u003c\/p\u003e","brand":"Powerbox","offers":[{"title":"ESB00323A(R2)","offer_id":47908033528038,"sku":"ESB00323A(R2)","price":0.0,"currency_code":"NZD","in_stock":false},{"title":"ESB00323B(R2)","offer_id":47908033560806,"sku":"ESB00323B(R2)","price":0.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/3804\/8998\/files\/camtec-esb00323-inrush-current-limiter.png?v=1782111115"}],"url":"https:\/\/powerbox.co.nz\/collections\/inrush-current-limiters.oembed","provider":"Powerbox Pacific","version":"1.0","type":"link"}