Basler Electric BE1-50/51B-230 - Manual (Page 33)

9252000894 Rev H BE1-50/51B-230/-234/-239 Installation 4-1
SECTION 4 • INSTALLATION
Introduction
BE1-50/51B-230 and BE1-50/51B-239 relays are direct replacements for General Electric IAC66K relays
with 5 Aac nominal current sensing. BE1-50/51B-234 relays are direct replacements for General Electric
IAC66K relays with 1 Aac nominal current sensing. The BE1-50/51B-230 and BE1-50/51B-234 relays are
supplied as draw-out assemblies that plug directly into existing cases for IAC66K relays. The draw-out
assembly is supplied with a relay cover and adapter plate for mounting the cover onto an existing IAC66K
case. The BE1-50/51B-239 relay is a draw-out assembly supplied with a case and cover. A connection
plug is supplied with all models.
If desired, proper relay operation may be confirmed by performing the test procedures listed in Section 5.
If the relay will not be installed immediately, store the relay in its original shipping carton in a moisture-
and dust-free environment.
Factory Settings
Factory settings for the internal switches of SW3 and jumper settings are as follows:
• SW3-1 — OFF (60 hertz operation).
• SW3-2 — OFF (0.0 additional fixed delay for the instantaneous element).
• SW3-3 — ON (GE IAC type characteristic curves).
• SW3-4 — ON (Integrating reset characteristics).
• J1 pins 2-3 — 50-A minimum target operating current of 80 to 200 mA
• J2 pins 1-2 — 51 minimum target operating current of 0.9 to 2.25 A
Installation (BE1-50/51B-230/-234 Only)
The relay must be configured with the appropriate settings before commissioning the relay in a specific
application. Changing the pickup settings while the relay is in service may cause tripping. Perform the
following steps to install the BE1-50/51B-230 or BE1-50/51B-234 relay in an existing GE IAC66K relay
case:
1. Remove the existing GE IAC66K relay from its case.
2. Using the four screws provided, attach the cover adapter to the existing case.
3. Insert the BE1-50/51B-230 or BE1-50/51B-234 into the case. Lock the draw-out assembly in place
with the cradle latches.
4. Install the new Basler Electric connection plug.
5. Install the cover supplied with the relay.
a. Align the interlocking bracket at the top of the cover with the mating receptacle at the top of the
cover adapter plate.
b. Secure the cover by tightening the captive knob at the bottom of the cover.