山西供应HONEYWELL阀门V4043/V4044电动阀门
联系人:魏工 电话:15882174684
座机:028-84472033
QQ:2030149354产品资料:
Example: Monitoring Overload of a Motor with a Rated Current of 5 A
K8AB settings:
Overcurrent detection, operating value setting: 25%, operating time: 0.1 s
Startup lock timer: 0.1 to 30 s (Set the timer according to the duration of
the startup current.)
The setting range for the K8AB-AS3 is 10% to 100% of the rated
current (i.e., 10 to 100 A). Pass the conductors through the CT five
times so that at least 10 A of current flows. The input current to the
K8AB will be 25 A (i.e., 5 A x 5 loops).
If a startup current of six times the rated current is generated, it will be
150 A (i.e., 25 A x 6). The overload capacity for the K8AB-AS3 is
200% of the rating for 30 s. The Relay will not fail even if the startup
current continues for 30 s, and it is possible to perform overload
Detection.
Ideal for 3-phase voltage asymmetry
monitoring for industrial facilities and
equipment.
• Monitor voltage asymmetry, phase sequence, and phase loss
for three-phase 3-wire or 4-wire power supplies with just one
Unit.
Switch setting for 3-phase 3-wire or 3-phase 4-wire power
supply.
• One SPDT output relay, 6 A at 250 VAC (resistive load).
• World-wide power specifications supported by one Unit
(switchable).
• Relay status can be monitored using LED indicator.
Model Number Structure
■Model Number Legend
1. Basic Model
K8AB: Measuring and Monitoring Relays
2. Functions
PA: Three-phase Asymmetry and Phase-sequence Phase-loss Relay.
3. Rated Input Voltage
1: AC 115, 127, 133, 138, 200, 220, 230, 240
2: AC 220, 230, 240, 277, 380, 400, 415, 480
Single K8AB Monitors 3-phase Power Supply with 3 or 4 Wires
Monitoring Relays can be used to monitor 3-phase power supplies with 3 or 4 wires simply by changing DIP switch settings.
A Single K8AB Can Monitor a 3-phase Power Supply Anywhere in the World
Reduces Maintenance Parts Inventory
SW3 ON ON OFF OFF
SW4 ON OFF ON OFF
K8AB-P@1
SW2 ON P-N 138V 133V 127V 115V