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2CTB815704R3700 ABB OVR T2 3N 40-440s P TS QS Surge Protective Device

2CTB815704R3700 ABB OVR T2 3N 40-440s P TS QS Surge Protective Device

ABB OVR T2 3N 40-440s P TS QS is a pluggable 3+1 Type 2 surge protective device for 400/690 V AC TN-S and TT systems, with Safety Reserve technology, 20 kA nominal discharge current, 40 kA maximum discharge current, 440 V AC maximum continuous operating voltage and remote status signalling.

SKU: 2CTB815704R3700MPN: 2CTB815704R3700
Price
List Price £651.58 ex VAT
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£651.58
Manufacturer Lead Time Estimated Delivery 10 weeks
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Why Choose the ABB OVR T2 3N 40-440s P TS QS Surge Protective Device?

The ABB OVR T2 3N 40-440s P TS QS, order code 2CTB815704R3700, is a high-performance Type 2 surge protective device (SPD) designed for three-phase plus neutral 400/690 V AC TN-S and TT electrical systems. Installed in main or sub-distribution switchboards, it protects low-voltage installations and sensitive equipment against transient overvoltages caused by indirect lightning effects and electrical switching events.

The OVR T2 3N 40-440s P TS QS uses a 3+1 protection configuration and has a maximum continuous operating voltage Uc of 440 V AC. It provides a nominal discharge current In of 20 kA and a maximum discharge current Imax of 40 kA using the 8/20 µs waveform, with a total maximum discharge-current capability of 160 kA.

ABB's Safety Reserve technology provides an additional protection stage to maintain basic surge protection when the primary varistor reaches end of life, while QuickSafe technology supports reliable thermal disconnection. Pluggable cartridges, visual condition indication and TS remote signalling with one normally open and one normally closed contact make the device particularly suitable for installations where straightforward maintenance and remote SPD monitoring are required.

Key Advantages

  • Reliable Type 2 / Class II surge protection for three-phase plus neutral networks.
  • Designed for 400/690 V AC TN-S and TT systems.
  • 40 kA maximum discharge current per protection path using the 8/20 µs waveform.
  • 20 kA nominal discharge current for effective transient surge suppression.
  • 160 kA total maximum discharge-current capability across the complete 3+1 assembly.
  • Safety Reserve technology provides increased protection availability and preventive-maintenance indication.
  • ABB QuickSafe technology supports dependable end-of-life disconnection.
  • TS remote signalling enables integration with alarm and monitoring systems.
  • Pluggable phase and neutral cartridges simplify servicing and replacement.
  • 100 kA short-circuit withstand capability supports demanding distribution applications.

Key Features

  • ABB OVR T2 QuickSafe series.
  • Type 2 / Class II surge protective device.
  • 3+1 protection configuration.
  • Designed for TN-S and TT low-voltage distribution systems.
  • 400/690 V AC nominal system voltage.
  • 440 V AC maximum continuous operating voltage Uc.
  • 40 kA maximum discharge current Imax.
  • 20 kA nominal discharge current In.
  • 2 kA impulse current Iimp.
  • 160 kA total maximum discharge current.
  • 1.8 kV L-N, 1.4 kV N-PE and 2.1 kV L-PE protection levels.
  • Safety Reserve preventive-maintenance function.
  • Pluggable protection cartridges with visual status indication.
  • 1 NO + 1 NC auxiliary contacts for remote signalling.

Safety Reserve Surge Protection for Three-Phase Plus Neutral Systems

Type 2 SPDs are designed to discharge transient currents generated by indirect lightning effects and electrical switching before damaging overvoltages reach downstream equipment. The ABB OVR T2 3N 40-440s P TS QS combines 20 kA nominal and 40 kA maximum discharge-current ratings with a coordinated 3+1 topology for three-phase plus neutral TN-S and TT systems.

The Safety Reserve function increases protection availability by retaining a basic level of surge protection when the primary varistor protection stage reaches end of life. Together with visual indication, individually replaceable cartridges and TS auxiliary contacts, this enables maintenance personnel to identify deterioration, remotely monitor SPD status and schedule replacement without unnecessarily changing the complete surge protection assembly.

Typical Applications

  • Three-phase plus neutral 400/690 V AC TN-S installations.
  • Three-phase plus neutral TT electrical distribution systems.
  • Main low-voltage distribution switchboards.
  • Industrial sub-distribution boards.
  • Commercial building electrical systems.
  • Manufacturing and process-control installations.
  • Protection of automation, control and electronic equipment.
  • Installations requiring preventive SPD maintenance indication.
  • Systems requiring remote surge-protection status monitoring.

Technical Specifications

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Impulse Current Iimp (kA) 2 kA
Series OVR T2 QuickSafe
ABB order code 2CTB815704R3700
EAN / GTIN 3660308525376
Product group Surge Protection Devices
Product type Type 2 surge protective device
SPD classification Type 2 / Class II
Standards IEC 61643-11 / EN 61643-11
Low-voltage distribution systems TN-S / TT
Configuration 3+1
Number of poles 4
Nominal system voltage 400 / 690 V AC
Frequency 45–65 Hz
Maximum continuous operating voltage Uc 440 V AC
Impulse current Iimp (10/350 µs) 2 kA
Nominal discharge current In (8/20 µs) 20 kA
Maximum discharge current Imax (8/20 µs) 40 kA
Total maximum discharge current 160 kA
Voltage protection level Up, L-N 1.8 kV
Voltage protection level Up, N-PE 1.4 kV
Voltage protection level Up, L-PE 2.1 kV
Temporary overvoltage withstand 581 / 1200 V
Response time <26 ns
Short-circuit withstand capability Isccr 100 kA
Maximum backup fuse 160 A
Maximum backup circuit breaker 125 A
Safety Reserve Yes
QuickSafe technology Yes
Status indication Yes
Remote signalling Yes
Normally open auxiliary contacts 1
Normally closed auxiliary contacts 1
Minimum auxiliary contact load 12 V DC / 10 mA
Maximum auxiliary contact load 250 V AC / 1 A
Solid conductor connection 2.5–25 mm²
Stranded conductor connection 2.5–35 mm²
Wire stripping length 12.5 mm
Construction Pluggable
Phase replacement cartridge OVR T2 40-440s C QS
Phase replacement cartridge order code 2CTB815704R5500
Neutral replacement cartridge OVR T2 N 80-440s C QS
Neutral replacement cartridge order code 2CTB815708R5700
Degree of protection IP20
Flammability rating V-0
Operating temperature -40 to +80 °C
Mounting type 35 mm DIN rail
Module width 4 modules
Dimensions (H × W × D) 95.8 × 71.2 × 76.7 mm

Frequently Asked Questions

What is the ABB OVR T2 3N 40-440s P TS QS used for?

It is a Type 2 surge protective device for three-phase plus neutral 400/690 V AC TN-S and TT systems, designed to protect electrical installations and sensitive equipment against transient overvoltages caused by indirect lightning effects and switching events.

What are the discharge-current ratings of the OVR T2 3N 40-440s P TS QS?

The device has a nominal discharge current In of 20 kA and a maximum discharge current Imax of 40 kA using the 8/20 µs waveform, with a total maximum discharge-current capability of 160 kA across the complete assembly.

What does the “s” mean in OVR T2 3N 40-440s?

The “s” identifies the Safety Reserve version. ABB's reserve-varistor design maintains basic surge protection when the primary protection stage reaches end of life, helping keep the installation protected until the affected cartridge is replaced.

What does TS mean on the OVR T2 3N 40-440s P TS QS?

The TS version includes remote signalling through one normally open and one normally closed auxiliary contact, allowing SPD status to be integrated into suitable monitoring, alarm or building-management systems.

Can the protection cartridges be replaced?

Yes. The device uses pluggable cartridges. The phase replacement is the ABB OVR T2 40-440s C QS, order code 2CTB815704R5500, while the neutral replacement is the ABB OVR T2 N 80-440s C QS, order code 2CTB815708R5700.

Trusted ABB Surge Protection Technology

ABB OVR Type 2 surge protective devices combine high surge-current capability, QuickSafe technology and pluggable construction, with the OVR T2 3N 40-440s P TS QS adding Safety Reserve functionality and remote status signalling for dependable protection of three-phase plus neutral commercial and industrial electrical systems.

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