LR1-D

Model Reference

Application

• LRD series thermal relay is suitable for using in the circuits rated voltage up to 660V, ratedcurrent 93A AC 50/60Hz, for over-current protection of AC motor.
• The relay has the differentialmechanism and temperature compensation and can plug in LC1-D series AC contactor. Theproduct conforms to IEC60947-4-1 stardand.

Motion Characteristic: Three-phase Balance Motion Time

No	Times of the setting current	Motion time			Start conidition	Ambient temperature
1	1.05	>2h			Cold state	20±5°C
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±5oC
2	1.15	0	<2h	Heat state(Following the No.1 test)

Technical Data

Type	Number	Setting range (A)	Applied Contactor
LRD13	D01	0.10~0.16	LC1-D-09~38
	D02	0.16~0.25	LC1-D-09~38
	D03	0.25~0.40	LC1-D-09~38
	D04	0.40~0.63	LC1-D-09~38
	D05	0.63~1	LC1-D-09~38
	D06	1~1.7	LC1-D-09~38
	D07	1.6~2.5	LC1-D-09~38
	D08	2.5~4	LC1-D-09~38
	D10	4~6	LC1-D-09~38
	D12	5.5~8	LC1-D-09~38
	D14	7~10	LC1-D-09~38
	D16	9~13	LC1-D-09~38
	D21	12~18	LC1-D-09~38
	D22	16~24	LC1-D-09~38
	D35	30~38	LC1-D-09~38
LRD23	2353	23~32	LC1-D-25~32
	2355	30~40	LC1-D-25~32
LRD33	3322	17~25	LC1-D-40~95
	3353	23~32	LC1-D-40~95
	3355	30~40	LC1-D-40~95
	3357	37~50	LC1-D-50~95
	3359	48~65	LC1-D-50~95
	3361	55~70	LC1-D-65~95
	3363	63~80	LC1-D-65~95
	3365	80~93	LC1-D-95

Dimensioned