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Schneider Electric GV3A05 — Miniature Circuit Breakers (MCB)

Schneider TeSys GV3A05 Auxiliary Contact Block, 3 NO, 6 A, O

MPNGV3A05
Obsolete

Schneider TeSys Deca GV3A05, auxiliary contact block, 3 NO early-break, 6 A, obsolete.

Schneider Electric GV3A05 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

GV3A05 — Identification
ParameterValue
Product rangeTeSys
Product/component typeAuxiliary contact block
GV3A05 — Ratings
ParameterValue
Rated operational voltage (Ue)48...690 V AC 24...220 V DC
Rated insulation voltage (Ui)600 V UL 508 690 V IEC 60947-1 600 V CSA C22.2 No 14
GV3A05 — Protection
ParameterValue
Mechanical durability (cycles)100000 cycles
GV3A05 — Other specifications
ParameterValue
Protection typeGB2CB... circuit breaker GG fuse 6 A
Quantity per setSet of 10
Device short nameGV3A
Mounting locationRight side
Pole contact composition3 NO
Environmental characteristicNormal environment
Rated operational power in180 W 24 V DC-11 100000 cycles 240 W 48 V DC-11 100000 cycles 180 W 60 V DC-11 100000 cycles 140 W 110 V DC-11 100000 cycles 120 W 220 V DC-11 100000 cycles
[Ith] conventional free air thermal current6 A

Product details

The Schneider TeSys GV3A05 is an auxiliary contact block with three normally-open early-break contacts, designed for right-side mounting on GV3 manual motor starters in the TeSys Deca range. It's rated for 6 A conventional free-air thermal current (Ith) and carries a rated insulation voltage of 690 V per IEC 60947-1 or 600 V per UL 508 / CSA C22.2 No 14.

The early-break function means these NO contacts open ahead of the main power contacts when the starter trips, which matters for safety interlock circuits that need to drop out before the motor loses power. The AC-11 and DC-11 ratings tell you the switching capacity for inductive control loads: 850 VA at 380–415 V AC, 800 VA at 220–240 V AC, and 120 W at 220 V DC, all at 100,000 cycles. That 100,000-cycle mechanical durability figure is the expected life under rated conditions — not a guarantee, but a solid benchmark for panel lifecycle planning.

Mounts on the right side of a GV3 manual motor starter in the TeSys Deca line. No DIN-rail space consumed beyond the starter itself; the block clips on and adds about the width of the starter body.

Frequently asked questions

What replaces the GV3A05?

There is no official successor order code listed for the GV3A05. For a new design, consult current TeSys GV3 or GV4 auxiliary contact blocks that offer 3 NO early-break contacts and a 6 A thermal rating, then verify the mounting compatibility with your specific starter.

What are the key electrical ratings of the GV3A05?

The GV3A05 is rated for 6 A conventional free-air thermal current (Ith), with a rated insulation voltage of 690 V IEC / 600 V UL/CSA. Its AC-11 switching capacity reaches 850 VA at 380–415 V, and its DC-11 rating is 120 W at 220 V, both at 100,000 cycles.

What compliance documentation is available for the GV3A05?

The GV3A05 carries UL 508 and CSA C22.2 No 14 approvals for its insulation voltage rating, and is designed to IEC 60947-1 standards. Specific RoHS/REACH declarations would be part of the original documentation package; for obsolete parts, these are typically available from the manufacturer's archive or through the surplus supplier.

MPN
GV3A05