21WL Circuit Breaker Selection and Application Guide
Breaker display adapter (BDA)
The BDA can be used to read or modify the breaker ETU and
Cubiclebus parameters using a laptop, pocket PC or remote
desktop PC. Circuit breakers can be parameterized individually
using one BDA with similar or different parameters. No software
is required as the embedded software interface is through a PC
browser. Connectivity to a PC or network can be serial (RS232) or
Ethernet (TCI/IP) addressed. If the breaker ETU is energized with
24VDC control power the BDA can be powered through the
interconnecting ribbon cable. Order part number WLBDAP
WL Circuit Breaker
Accessories
Handheld test device
To test the WL breakers ETU trip functions we offer a hand-held
tester that checks:
• Sensor continuity
• Long-time function
• Short-time function
• Instantaneous function
• Neutral and ground fault function
During a test, the device will electrically trip the circuit breaker
performing a full function test of the ETU and the trip actuator.
Cables for 120VAC power supply and ETU connection is included
with the tester. Order part number WLTS
Communication power supplies
For WL devices that require a 24VDC input we offer the Siemens
SITOP power supply. The SITOP power supply is a class 2 rated
devices suitable for supporting loads of 2.5 or 3.8 amps. DIN rail
mounting provision and compression wire connections included.
For loads of 2.5A maximum order part number WLSITOP25 or
WLSITOP1 for 3.8A maximum loads.
Mechanical breaker interlocks
Mechanical interlock options are available for fixed or draw-out
breakers. Interlocking is managed through cable connections
between two or three breakers less than 6 meters apart. Lock
kit includes 2.0 meter interlocking cable and mechanism for
mounting to a single breaker.
For fixed breaker frame size 1 order part number WLNTLKF1
For fixed breaker frame size 2 or 3,
order part number WLNTLKF23
For draw-out breaker frame size 1, 2, or 3,
order part number WLNTLK
For alternate cable lengths, order part number
3.0 meter WLNTLWRE3
4.5 meter WLNTLWRE4
6.0 meter WLNTLWRE5
Courtesy of NationalSwitchgear.com