Features
The circuit breakers meet the following requirements:
• High breaking capacity
• Selective protective response
• Optional integrated metering function with internal voltage tap and expansion module
metering functionBasic / metering functionAdvanced (with electronic trip units of the 6-
series)
• Connection to a eldbus communication system or Ethernet-based IP communication (with
electronic trip units of the 6-series)
The most important features of the circuit breaker are:
Feature Air circuit breaker
3WL10
Molded case circuit breaker
3VA27
Compact dimensions ✓ ✓
Rated current I
n
630 / 800 / 1000 / 1250A 800 / 1000 / 1250 / 1600A
Breaking capacity classes 42 kA, 55 kA, and 66kA
(I
cu
at 440V)
55 kA, 85kA, and 110kA
(I
cu
at 415V)
Fixed-mounted ✓ ✓
Withdrawable ✓ ✓
Handle operating mechanism — Optional
Stored energy mechanism ✓ Optional
Electronic trip units 3-series / 6-series 3-series / 6-series
Direct communication link to the device without an in‐
termediate gateway. Various bus systems are available
(optionally for electronic trip units of the 6-series)
✓ ✓
Use in AC applications ✓ ✓
Direct communication link to various bus systems of the
device (optionally for electronic trip units of the 6-series)
✓ ✓
No derating of the circuit breaker up to +70 °C in accord‐
ance with IEC60947‑2
✓ —
Modular and easy-to-t accessories ✓ ✓
Connections that can be retrotted by the user. Its orien‐
tation is modular or rotatable for subsequent modica‐
tion.
✓ ✓
Description
2.5Basic properties of the circuit breaker (3WL10 / 3VA27)
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
18 Equipment Manual, 10/2023, L1V30499596002-03