High-energy AC SPDs for distributors, panel builders, contractors and OEM projects. Confirm Iimp, Uc, pole configuration, network system and model-specific documents before ordering.
A Type 1 keyword is only the starting point. The final model depends on Uc, Iimp, protection mode, conductors and external backup protection.
Use Type 1 duty at the service entrance or main distribution board where partial lightning current may enter the low-voltage installation. Then match the product to TT, TN-S or TN-C and the required pole arrangement.
| System | Typische Anordnung | Hauptbestätigung |
|---|---|---|
| Einphasig TN-S / TT | 1P+N oder verifizierte 2-polige Lösung | L-N / N-PE-Pfad, Uc, Iimp und Vorsicherungsschutz |
| Dreiphasig TN-C | 3P | Kein separater Neutralleiter, ausgewählte Uc und Itotal |
| Dreiphasiges TN-S | 4P oder 3P+N | 4+0 gegenüber 3+1 Schutzmodus und Dokumentationsumfang |
| Dreiphasiges TT | Normalerweise verifizierte 3P+N-Lösung | N-PE-Element, Erdungskonzept und Netzfolgestrom-Daten |
Senden Sie das einpolige Schaltbild oder Systemdetails zur endgültigen Modellbestätigung.
Compare the current B25 monoblock products by network, Uc and lightning-current rating. Choose a representative model first, then confirm the complete protection path and documentation.
Klasse I+II / Typ 1+2
Klasse I+II / Typ 1+2
Klasse I+II / Typ 1+2
Klasse I+II / Typ 1+2
Typ 1+2 · MOV + GDT
Typ 1+2 · MOV + GDT
Keep the page focused on the engineering choices that directly affect product suitability and procurement risk.
Wählen Sie nicht allein aufgrund des höchsten kA-Wertes oder der Polzahl aus.
Überprüfen Sie den Typ-1-SPD als Teil des gesamten Verteilungs- und Erdungssystems.
Component, impulse and thermal checks support product validation, but final approval still requires the exact model and document scope.
Component checks support the review of clamping behaviour, leakage-related parameters and batch consistency before assembly.
Confirm 10/350μs Iimp by pole or protection path and review Itotal separately where the arrangement requires it.
Thermal behaviour and disconnection matter when MOVs age or face abnormal overvoltage conditions.
Confirm the base model first, then align the label, model name, packaging, instructions and applicable documentation before production.
Type 1 duty is generally considered at the service entrance or main distribution board where the protection concept expects partial lightning current to enter the low-voltage installation. The final location must follow the project lightning-protection, earthing and distribution design.
The current B25 products are combined Type 1+2 devices. They state Iimp for Type 1 duty and In/Imax for Type 2 duty. This page answers the Type 1 buying intent while preserving the products' full classification.
Choose from the project requirement, lightning protection level, current distribution assumptions and installation point. The B25 models shown here provide 25kA on the phase path. See the Leitfaden für 12,5 kA im Vergleich zu 25 kA.
Start with the earthing system and protection mode. TN-C may use a three-pole arrangement, while TN-S or TT may require 4P or 3P+N depending on whether the design uses 4+0 or 3+1 protection. Pole count alone is not enough.
Send the country, customer type, system voltage, TT/TN-S/TN-C network, required Iimp, pole arrangement, quantity, required documents, project timing and any single-line diagram or BOM available.
Send the basic project details directly from this page. LEEYEE can review Type 1 duty, Uc, poles, protection mode and model-specific document availability for distribution, panel-building, OEM and project orders.
CNSPD.com is LEEYEE's surge-protection platform for global buyers. LEEYEE is the product brand and supplier.
Send the essential project details now. We will use them to confirm the suitable model, document scope and quotation requirements.
