Circuit Breaker Factory & Suppliers Serving the Jerusalem Market

Engineering-grade low-voltage electrical protection, modular transfer switching devices, and heavy-duty industrial breakers certified to IEC 60947 and IEC 60898 standards for Jerusalem's commercial, residential, and infrastructural power sectors.

IEC 60947-2 & IEC 60898-1 Certified High Icu Breaking Capacity (Up to 100kA) Direct OEM/ODM Liushi Production Hub
Factory Inventory & Spec Series

Featured Circuit Protection & Switching Devices for the Levant & Jerusalem

Directly supplied from our specialized manufacturing facilities in Liushi, Wenzhou. Engineered with precision silver-alloy contacts, flame-retardant thermoplastics, and responsive magnetic trip mechanisms tailored for 230V/400V 50Hz networks.

Over/Under Voltage Single-phase Overcurrent, Undervoltage Protector AC 220V Voltage 32 A-100 a Voltage Regulator Protector

Single-Phase Overcurrent & Undervoltage Protector (32A–100A AC 220V)

  • Rated Voltage:220V AC (50/60Hz)
  • Current Setting:32A to 100A Adjustable
  • Action Time:< 0.5s Rapid Trip
  • Mounting:Standard 35mm DIN Rail
Technical Specifications
Feeder MCCB Mutai 3p 80amp 100 Amp Thermal Magnetic Circuit Breaker 415V 35kA 50/60Hz for Wholesale

Mutai 3P 80A/100A Thermal-Magnetic Circuit Breaker (415V 35kA)

  • Poles Configuration:3-Pole (3P)
  • Breaking Capacity:35kA @ 415V AC
  • Trip Mechanism:Thermal-Magnetic Inverse
  • Standard:IEC 60947-2
Technical Specifications
Solar Transfer PC Type Automatic Transfer Switch 220V AC Manual Auto Control Modular Changeover Device for Solar Power

PC Type Automatic Transfer Switch (220V AC Solar/Grid Modular Changeover)

  • Utilization Category:PC Class (High Endurance)
  • Switching Speed:< 50ms (No Interruption)
  • Application:PV Inverter / Grid Hybrid
  • Standard:IEC 60947-6-1
Technical Specifications
DC Photovoltaic Wholesale From China Factory Waterproof 500V DC 100A Mccb Circuit Breaker Moulded Case Circuit Breakers

Waterproof 500V DC 100A Moulded Case Circuit Breaker (Outdoor Rated)

  • Rated Voltage:500V DC Photovoltaic
  • Frame Rating:100A Continuous
  • Enclosure Rating:IP65 / Waterproof Sealed
  • Arc Quenching:Permanent Magnetic Blowout
Technical Specifications
Dual Conversion Customizable 2-Pole 4P Single Three Phase Manual Conversion ATS 10kA Breaking Capacity 125A Frame Current Industrial Household

2P/4P Manual Conversion Transfer Switch (125A Frame 10kA Industrial)

  • Phase Setup:Single & 3-Phase (2P / 4P)
  • Frame Current:125A Heavy Duty
  • Breaking Capacity:10kA Short-Circuit
  • Interlock:Mechanical Positive Lockout
Technical Specifications
High Breaking MCCB Molded Case Circuit Breaker Thermal-Magnetic Trip Unit Plastic Copper 50kA 100kA Breaking Capacity 690VAC 400VAC

Heavy Duty MCCB 50kA/100kA Breaking Capacity (400V/690V Thermal-Magnetic)

  • Ultimate Breaking (Icu):50kA / 100kA @ 400VAC
  • Insulation Voltage:Ui 800V / Uimp 8kV
  • Internal Conductor:99.9% Electrolytic Copper
  • Trip Flexibility:Adjustable Thermal & Magnetic
Technical Specifications
Smart Auto-Recovery 40A 63A 220V SVC PC AC Din Rail Adjustable Recovery Reconnect Over Under Voltage Electronic Protective Device 30kVA

40A/63A DIN Rail Adjustable Reconnect Over/Under Voltage Protector (30kVA)

  • Current Rating:40A / 63A Self-Healing
  • Protection Threshold:Over: 230-300V / Under: 140-210V
  • Recovery Delay:1s to 500s Configurable
  • Digital Display:Real-Time Dual LED Voltmeter
Technical Specifications
3-Phase Auto ATS Din Rail ATS Double Power Automatic Transfer Switch 4P100A 125A Three Phase PC Type AC 400V OEM

DIN Rail ATS 4P 100A/125A Three-Phase Dual Power Automatic Transfer Switch

  • Operating Voltage:400V AC (3P+N, 4-Pole)
  • Rated Current:100A / 125A Continual
  • Controller Type:PC Class Electromagnetic Drive
  • Mounting:Compact Dual DIN Standard
Technical Specifications
Technical Insight & Local Infrastructure

Electrical Network Dynamics of the Jerusalem Metropolitan Region

Operating low-voltage electrical switchboards and protective gear in Jerusalem demands an intimate engineering grasp of complex urban grid typologies. The municipal geography couples centuries-old limestone architectural fabrics within the historic core with rapidly expanding high-tech industrial corridors in Har Hotzvim, Malha Technology Park, and Givat Shaul. This stark architectural dichotomy presents profound operational challenges for electrical switchgear, ranging from severe thermal dissipation constraints in vintage cut-stone recesses to rigorous harmonics mitigation in high-density corporate data centers.

Low-voltage distribution in the Jerusalem district operates on a standard nominal voltage of 230V single-phase and 400V three-phase at 50Hz, governed by IEC-aligned statutory rules. However, grid impedance fluctuations and localized distribution network loads frequently introduce transient overvoltages, inductive switching surges, and significant harmonic distortion. Breakers installed in these systems must demonstrate unconditional fault-clearing capabilities without risking contact welding or catastrophic arc chamber flashovers.

TT & TN-S Earthing Compatibilities Altitude Ambient Derating (750m–850m) High Surge Immunity (Type 1+2 SPD Coordination)

Moreover, earthing schemes across municipal developments largely hinge on TT systems or TN-C-S configurations where loop impedances can climb unexpectedly. Under such circumstances, miniature circuit breakers (MCBs) and moulded case circuit breakers (MCCBs) must exhibit sharp, uncompromised magnetic sensitivity. Our factory incorporates precision silver-tungsten contact alloy matrices and multi-plate arc chutes to extinguish electric arcs within 2.5 to 4 milliseconds, isolating downstream equipment before peak thermal let-through energy ($I^2t$) causes thermal breakdown of cable insulation.

Comprehensive low voltage circuit breaker portfolio for commercial and residential installations
Fig 1.1: Complete low-voltage switchboard coordination: MCBs, MCCBs, AC contactors, and automatic transfer switches engineered for robust grid isolation.
100kA
Ultimate Breaking Capacity

Extreme short-circuit interruption thresholds (Icu) engineered for main incomers next to distribution substations.

<3.2ms
Arc Interruption Velocity

Rapid magnetic trip blow-out geometry suppresses prospective peak currents before dynamic stress damages busbars.

850m
High-Altitude Calibration

Thermal trip bi-metals calibrated specifically for elevated air rarefaction and reduced heat convection in the Judean Hills.

20,000
Endurance Operations

Mechanical and electrical longevity ensuring continuous compliance with IEC 60947-2 Class A switchgear life-cycles.

Target Engineering Environments

Mission-Critical Deployment Scenarios in Jerusalem

From retrofitting ancient stone-walled residential quarters to powering zero-downtime medical centers and tech incubators, circuit protection must align with unique spatial and electrical stress points.

Historical Retrofits & Compact DBs

Jerusalem's dense heritage residential buildings feature narrow stone recesses with poor air circulation. Compact DIN-rail MCBs (1P+N, 2P) and auto-reconnect over/under voltage relays provide critical space-saving distribution while preventing nuisance trips caused by summer heat build-up.

DIN-Rail 18mm Self-Extinguishing V-0 IP40 Sub-Enclosures

Har Hotzvim Technology Corridors

Data centres, biopharmaceutical labs, and semiconductor cleanrooms demand zero power disturbance. Our 3-pole and 4-pole PC-class Automatic Transfer Switches (ATS) deliver sub-50ms utility-to-generator transfers, isolating faulty phases and eliminating common-mode harmonic ground currents.

Sub-50ms Changeover 4-Pole Neutral Break Harmonic Isolation

Rooftop Solar PV & Hybrid Storage

Under Israel's National Renewable Energy mandates, commercial rooftops across the Atarot and Talpiot industrial areas are installing high-yield solar strings. We supply waterproof 500V–1000V DC MCCBs and Type 1+2 DC surge arresters engineered to quench unrelenting direct-current arcs safely.

500V–1000V DC IP65 Outdoor Non-Polarized Trip

Municipal Light Rail & Infrastructure

Jerusalem's extensive Red Line and upcoming Green Line transit systems operate under strict safety guidelines. Our heavy-duty 50kA/100kA MCCBs and electromagnetic AC contactors provide dependable circuit interruption for signaling shelters, auxiliary pump stations, and sub-surface ventilation shafts.

High Ics/Icu Ratio Vibration Resistant AC-3 High Duty Cycle
Industry Horizon

Key Electrical Market Trends Shaping the Region

Strategic procurement trends observed among Levant EPC contractors, switchgear builders, and municipal project specifiers transitioning toward digital, smart, and resilient infrastructure.

TREND 01 // GRID RESILIENCE

Decentralized Islanding & Dual-Power Microgrids

Municipal security standards and localized energy continuity requirements have dramatically accelerated the adoption of localized secondary power sources. Standby diesel generators, commercial battery energy storage systems (BESS), and micro-inverters require PC-class Automatic Transfer Switches that guarantee electrical and mechanical isolation between conflicting phases, avoiding back-feeding hazardous voltages into upstream grids.

TREND 02 // VOLTAGE REGULATION

Autonomous Voltage Monitoring & Self-Healing Protection

With the rapid proliferation of three-phase electric vehicle (EV) charging stations and distributed solar feed-ins across Jerusalem's residential sectors, distribution feeders experience unpredictable voltage swell and sag dynamics. Traditional thermal-only breakers are being systematically paired with microprocessor-controlled auto-recovery protectors that instantly decouple loads during anomalous voltage transients and restore power without manual intervention.

TREND 03 // DIGITIZATION & TELEMETRY

Transition to Smart Electronic Trip Units (ETU)

Panel builders servicing Jerusalem's expanding commercial complexes are increasingly bypassing static thermal-magnetic trip units in favor of microprocessor-driven ETUs. These intelligent systems allow software-defined short-time delay (Isd), instantaneous pick-up (Ii), and ground-fault protection (Ig), permitting precise breaker cascading that isolates only the compromised sub-circuit while keeping critical feeders continuously energized.

Engineering Selection Guide

Electrical Protection Device Matrix for Israeli & Levant Grid Parameters

Review critical electrical characteristics, breaking thresholds, and installation classifications to properly size protective elements across incoming and final distribution boards.

Equipment Category Nominal Current (In) Ultimate Breaking (Icu) Operating Voltage (Ue) Tripping Characteristic Primary Compliance Standard Target Substation / Panel Zone
Miniature Circuit Breaker (MCB) 1A – 63A 6kA / 10kA 230V / 400V AC Curves B, C, D (Magnetic 3-20 In) IEC/EN 60898-1 Final Sub-distribution, Light & Socket Arrays
Moulded Case Breaker (MCCB - Compact) 32A – 250A 35kA – 50kA 400V / 415V AC Adjustable Thermal & Fixed Magnetic IEC 60947-2 Sub-Feeder Distribution, HVAC Motor Starters
Heavy Industrial MCCB 100A – 800A 50kA – 100kA 400V / 690V AC Thermal-Magnetic / Electronic ETU IEC 60947-2 Main Low-Voltage Incomer, Factory Substations
Photovoltaic DC MCCB 32A – 250A 15kA – 25kA 500V – 1000V DC DC Specialized Magnetic Blowout IEC 60947-2 (DC) Solar PV Combiner Boxes, Inverter DC Inputs
Automatic Transfer Switch (ATS) 63A – 125A 10kA (Short-Time Icw) 220V / 400V AC (2P/4P) PC Class Electromagnetic Actuator IEC 60947-6-1 Critical Power Backup, Grid-Gen Transitions
Voltage Recovery Protector 32A – 100A 4.5kA Dynamic 220V / 230V AC Microprocessor-Sensed Cut-off IEC 61009 / 60947 Single-Phase Building Mains, Server Rack Inputs

* Note: For installations situated in the Jerusalem hills above 800m elevation, a current derating factor of 0.98 and dielectric voltage derating of 0.95 should be applied to ambient temperature calculations exceeding 40°C.

Manufacturing Authority

Why Engineering Importers & Contractors Trust Our Supply Chain

Operating from Huangyu Village, Liushi Town (Wenzhou) — China’s premier epicentre for low-voltage electric apparatus — Zhejiang Graybar Electric Co., Ltd. blends vertically integrated fabrication with rigorous laboratory validation.

Liushi Manufacturing Epicentre

Direct physical presence in the world’s most concentrated component ecosystem provides immediate access to high-grade metallurgical components, precision stamped copper busbars, and glass-fiber reinforced thermoset mouldings.

  • Zero middleman material markups
  • Direct oversight of molding & contact riveting
  • Swift prototype calibration turnarounds

100% Quality & Tripping QC

Every breaker undergoes computerized primary-injection calibration to test instantaneous short-circuit response and inverse thermal overload curves, preventing field callbacks and switchgear damage.

  • Dielectric breakdown verification at 2500V
  • Automated bi-metal thermal trip profiling
  • Complete batch serial code traceability

Flexible B2B Sourcing Models

We eliminate excessive minimum quantity hurdles for overseas engineers. Standard MCB, MCCB, and voltage protection units start with low initial test MOQs (from 5 pcs), enabling swift sample trials before container scaling.

  • Air-freight expedited sample delivery
  • Consolidated mixed-category pallets
  • Customized OEM laser branding & dial pads

Full Compliance Documentation

All production series reference international IEC guidelines. We furnish buyers with complete test certs, arc chamber material datasheets, and clearance certificates required by custom import authorities and project engineers.

  • IEC 60947-2, IEC 60898-1 test dossiers
  • Bilingual packaging and technical manuals
  • Verified third-party audited manufacturing plant
Procurement Clarity

Frequently Asked Questions for Jerusalem Electrical Buyers

Detailed technical answers addressing regulatory standards, customs import pathways, thermal calibration, and mechanical coordination for local switchgear assemblers.

Are your circuit breakers compatible with Israeli and European electrical standards?
Yes. Low-voltage electrical installations in Israel and the Palestinian territories adhere fundamentally to standards derived from the International Electrotechnical Commission (IEC). Our MCBs are manufactured strictly referencing IEC/EN 60898-1 for building electrical panels, while our MCCBs and ACBs are compliant with IEC/EN 60947-2 for industrial switchboards. Our transfer switching gear complies with IEC 60947-6-1. These devices can be seamlessly approved by project engineers and electrical inspectors reviewing technical submittals against international harmonization criteria.

How does Jerusalem's elevation and summer temperature affect breaker sizing?
Jerusalem sits approximately 750 to 850 meters above sea level, characterized by lower atmospheric air density and dry, hot summer conditions where enclosed switchgear cabinet interiors regularly exceed 45°C to 50°C. Lower air density diminishes convective cooling and dielectric insulation resistance. For thermal-magnetic breakers calibrated at a reference baseline of 30°C or 40°C, a thermal derating factor of approximately 0.92 to 0.95 must be calculated for continuous loads. We also supply breakers calibrated with high-temperature bimetals specifically tuned for Mediterranean and elevated Levant climates upon request.

Why is 4-Pole (4P) switching strongly recommended over 3-Pole in local installations?
In many areas of Jerusalem, TT earthing or separate neutral-earth distribution schemes are mandated to safeguard against stray earth currents. When transitioning between the municipal electrical grid and a secondary on-site standby generator via an Automatic Transfer Switch (ATS) or main incomer MCCB, maintaining an unbroken neutral can create hazardous parallel ground paths and compromise residual current device (RCD) selectivity. Our 4-pole breakers physically isolate all three phases alongside the neutral conductor simultaneously, precluding circulating neutral currents and tripping anomalies.

What are the typical sea freight lead times and shipping routes to local ports?
For commercial container consignments (FCL/LCL), cargo departs from Ningbo or Shanghai maritime ports directly routed to the Port of Ashdod (approx. 40 km from Jerusalem) or the Port of Haifa. Sea transit times typically range from 24 to 32 days depending on the maritime shipping lane and transshipment hubs. For urgent prototyping, pilot switchboard assembly, or emergency replacement stock, we offer expedited air freight via Tel Aviv Ben Gurion Airport (TLV), with cargo reaching local facilities within 5 to 8 business days post-dispatch.

Can your factory accommodate private label branding and OEM dial customizations?
Yes, custom engineering and OEM production represent a major share of our export operations. We can produce custom tampo-printed or high-precision laser-etched faceplates with your brand typography, tailored breaking curves (Curve B, C, or D), customized voltage thresholds, Hebrew/English warning text on packaging, and custom-branded individual carton boxes. Customized rating adjustments and front-cover aesthetic modifications are fully supported subject to standard production batch quantities.

How do your voltage protection devices prevent damage during municipal grid sags?
Our self-healing electronic voltage protectors incorporate precision microcontrollers that measure true RMS line voltage continuously. If seasonal line loading or infrastructure maintenance causes nominal 230V lines to drop below 170V (undervoltage) or surge above 265V (overvoltage), the internal electromagnetic relay trips open in under 0.5 seconds, isolating sensitive compressors, medical machines, and power supplies. Once standard grid parameters stabilize within set parameters for a customizable recovery window (typically 30–60 seconds), the device automatically reconnects power seamlessly.

What documentation is provided to support clearance through customs inspection?
Every export consignment is accompanied by an itemized Commercial Invoice with accurate HS Code classifications (typically 8536.20 for circuit breakers under 1000V), packing lists with net/gross weights, Certificate of Origin (COO), and official Manufacturer Factory Declarations of Conformity referencing the applicable IEC test standards. We routinely coordinate with your chosen customs broker in Ashdod or Haifa to ensure all technical documentation meets border clearance protocols.

What is your minimum order policy for switchboard sample testing?
To empower panel builders, electrical engineers, and local distributors to evaluate physical mechanical build, arc chute robustness, and terminal screw torque resistance firsthand, we maintain a low sample MOQ policy. Standard MCB and MCCB models can be ordered starting from just 5 units, while larger modular devices like Air Circuit Breakers (ACBs) or heavy Automatic Transfer Switches (ATS) have an evaluation MOQ of 1 piece.

Equipping an Upcoming Switchboard or Infrastructure Project in Jerusalem?

Connect directly with our senior application engineers in Liushi. Send us your single-line diagram (SLD), bill of quantities (BOQ), or technical tender specifications for comprehensive component cross-referencing, project pricing, and sample coordination within 24 hours.

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