GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay UKH-12M manufacturer from China Zhejiang KRIPAL Electric Company

GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay

Place of Origin:

Zhejiang, China (Mainland)


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Product Detail

Model No.: UKH-12M

GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay

Thermal overlo

GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay

Thermal overload relays are protective devices. They are designed to cut power if the motor draws too much

current for an extended period of time. To accomplish this, thermal overload relays contain a normally closed

(NC) relay. When excessive current flows through the motor circuit, the relay opens due to increased motor

temperature, relay temperature, or sensed overload current, depending on the relay type.

These overload relays are similar to circuit breakers in construction and use, but most circuit breakers differ

in that they interrupt the circuit if overload occurs even for an instant. Thermal overload relays are conversely

designed to measure a motor's heating profile; therefore, overload must occur for an extended period before

the circuit is interrupted.

Characteristics:

1. Be mounted with contactor UKC(D)1-6M/9M/12M directly

3. Small size: 44mm width

4. 1NO+1NC tripping contact

5. Class 10A tripping standard

6. Phase-failure protection type: UKK

7. Sstandard type: UKH

8. Applicable ambient temperature: -5 to 40 degree

9. Manual/automatic reset

10 Ewmote reset is optional

11. Design of free trip

Specifications:

Motion Characteristic: Three-phase Balance Motion Time

No	Times of the setting current	Motion time			Start condition	Ambient temperature
1	1.05	>2h			Cold state	20±5^oC
2	1.2	<2h			Heat state(Following the No.1 test)
3	1.5	<4min
4	7.2	10A	2s< Tp≤10s	≤63A	Cold state
		10	4s< Tp≤10s	>63A

Phase-losing Motion Characteristic

No	Times of the setting current		Motion time	Start condition	Ambient temperature
	Any two phases	Another phase
1	1.0	0.9	>2h	Cold state	20±5^oC
2	1.15	0	<2h	Heat state(Following the No.1 test)

Applications:

UKH series thermal overload relay can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V,

rated current 0.1-93A for protecting the phase break when the electric motor is overload. The relay has different mechanism and temperature compensation& can be plunged in UKC1 series AC contactor.

Current Range: