Wenzhou Ginri Power Automation Co., Ltd.
Wenzhou Ginri Power Automation Co., Ltd.
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120 Volt Overcurrent Current Balance Relay Integrative Structure For Blowers
Protection function Phase protection, three-phase unbalance protection, overload protection.
Phase-failure protection: When any phase of the three-phase power supply of the motor lacks a phase or the internal phase of the motor is broken, the action delay time of the protector is ≤ 1S.Three-phase unbalance protection When the phase difference of any two-phase working current in the three-phase power supply of the motor exceeds (50±10)%, the delay time of the protector operation is ≤1S. Overload protectionWhen the operating current of the motor reaches 1.2 times to 6 times of the rated value, the action delay time of the protector is 80S ~ 10S (inverse time characteristic).
the output interface reset mode: control circuit power reset; reset time: (60 ± 10) S.
work methods: continuous work style.
applicable voltage range: AC24V ~ 380V/45 ~ 60Hz.
♦ Features
-- Integrative structure
-- Three-phase monitoring of overload, phase loss, phase unbalance
-- Powered by the measuring circuit
-- 1 NC SCR output contact
-- 4 LEDs for status indication
♦ Protective Functions
-- Overload
-- Phase loss
-- Phase unbalance
♦ Typical Applications
• Pumps • Fans
• Blowers • Motors
• Compressors
♦ Approvals
• CE • CCC
♦ Technical data
| Type | JDB-1 |
| Current range | 2.5-5A,4-10A,8-20A,16-40A,32-80A, 63-160A,150-300A |
| Startup delay | 5s,10s,20s |
| Protective functions | overload,phase loss,phase unbalance |
| Setting method | by knob |
| Indicators | ABC overload&phase loss |
| Output contacts | 1NC(SCR output) |
| Contact capacity | 1A 380VAC |
| Operating voltage of control loop | AC220V or AC380V |
| Dimensions(H*W*D) | 2.5-40A:38*90*63mm 80-300A:44.5*123*67mm |
| Mounting | screw fixing |
| Current range | Motor power | Wire hole diameter | Start-up time |
| 2.5~5A | 1.5~2.5KW | Φ11mm | 5 |
| 4~10A | 2~5KW | Φ11mm | |
| 8~20A | 4~10KW | Φ11mm | |
| 16~40A | 8~20KW | Φ11mm | |
| 32-80A | 16~40KW | Φ20mm | |
| 63~160A | 32~80KW | Φ20mm | |
| 150~300A | 64~160KW | Φ20mm |
