NR2 Thermal Overload Relay. 1. General. 2. Type Designation. 3. Features. Relays. EU Germany Ukrain Russia South Africa USA

Transcription

1 R Relays C US LISTED EU Germany Ukrain Russia South Africa USA NR Thermal Overload Relay. General. Certificates: CE, VDE, Ukrain, PCT, RCC, UL;. Electric ratings: AC 50/0Hz, 90V, 0.A~30A;.3 Tripping class: 0A;. Mounting version: a. Plug-in: Available for NR-.5, 5, 3, 93; b. Independent: Available for NR-50, 00, 30;.5 Standard: IEC/EN Type Designation N R - Current class Design sequence number Thermal overload relay Company code 3. Features 3. 3-phase bimetal 3. Continuously readjustable current settings 3.3 Temperature compensation 3. Tripping indicator 3.5 Test button 3. Stop button 3.7 Manual and automatic reset button 3. Electrically separated N/O plus N/C contact.5.

2 s. Technical Data. Protection properties Item Series No. I/In Operating time Tp Test condition Overload protection > h h min Start from cold status Start from heat status, right after item no. Start from heat status, right after item no. 7. s<tp 0s Start from cold status Phase failure protection 5 Any two phases.0.5 Another phase > h h Start from cold status Start from cold status Start from heat status, right after item no.5 Curves min three phase two phase cold status three phase two phase 0. heat status Multiple of rectified current..

3 Relays. Main Technical Parameters Model NR-.5 Picture Current class(a) 3 Phase failure protection function Automatic & manual reset Temperature compensation Releasing indicator Test & stop pushbutton Mounting mode Plug-in Independent No. of contacts N/O+N/C Auxiliary contacts Rated current (A) (AC-5 0V) Rated current (A) (AC-5 3V).73.5 Rated current (A) (DC-3 0V) 0. Rated operational current(a) Current setting range 0.~0. 0.~ ~ ~ ~ ~..5~ Matched fuse am(a) gg(a) Model NR-93 Picture Current class(a) 93 Phase failure protection function Automatic & manual reset Temperature compensation Releasing indicator Test & stop pushbutton Mounting mode Plug-in Independent Configuration of contacts N/O+N/C Auxiliary contacts Rated current (A) (AC-5 0/30V) Rated current (A) (AC-5 3/00V).73.5 Rated current (A) (DC-3 0/30V) 0. Rated operational current(a) Current setting range 3~3 30~0 37~50 ~5 55~70 3~ ~93 Matched fuse am(a) gg(a)

4 .. NR-5 5 N/O+N/C Current setting range.~.5.5~ 0 ~ 5.5~ 0 7~0 0 9~3 5 ~ 0 7~ NR-3 3 N/O+N/C Current setting range 3~3 0 3 ~3 0 NR-00 NR N/O+N/C Current setting range 30 N/O+N/C Current setting range ~ ~ ~ ~ ~ ~ ~ ~ NR N/O+N/C Current setting range ~ ~0 5 0~

5 Relays 5. Overall and Mounting Dimensions (mm) NR max 5max 7max NR-.5 with Mounting Block L 3L 5L /T /T /T NR-5 3./. 0.7/3. R NR-5 STOP RESET A TEST NO NC H max max T T T3 5max 9max.9.

6 R NR-5 with Mounting Block R.5 L 3 L 5 5 R NR-5 0 TEST STOP RESET A H 7max NO NC T T3 5max 00max NR R NR-3 TEST STOP RESET A H NO NC max 7max T T T3 55max 00max NR-3 with Mounting Block 0 R.5 L 3 L 5 L3 0 5 TEST NR-3 STOP RESET A H 90max NO NC T T T3 55max 00max.50.

7 R R H H Relays NR-93 7max NR-93 TEST STOP RESET A 3max NO NC T T T3 7max NR-93 with Mounting Block max L 3 L 5 NR-93 TEST STOP RESET A 7 05max NO NC T T T3 75max 5 NR max 0 37 max 70max 7max.5.

8 NR-00 M ±0. 3 L 5 L 5 0 0±0. NR-30 3 L 5 L 5 M0 /55* 7 /55* /9* 30±0. 5 /5* 50 5/30* Note: Dimension of product 00A and less / dimension of product above 00A.. Wiring Items Cross section area of conductor mm Main circuit Auxiliary circuit Single core or stranded wire Wiring screw Single core or stranded wire Wiring screw NR-.5 NR-5 NR-3 NR-93 NR-50 NR-00 NR-30 ~ M 0.5~.5 ~ M 0.5~.5 ~0 M 0.5~.5 ~ M0 0.5~.5 5~95 M/M 0.5~.5 5~95 M 0.5~.5 70~ 0 M0 0.5~.5 M3.5 M3.5 M3.5 M3.5 M3.5 M3.5 M3.5.5.

9 Relays 7. Accessories No. Description Application Mounting block for NR-.5 Incorporate with NR-.5 relay to form an independently mounted product Mounting block for NR-5 Incorporate with NR-5 relay to form an independently mounted product 3 Mounting block for NR-3 Incorporate with NR-3 relay to form an independently mounted product Mounting block for NR-93 Incorporate with NR-93 relay to form an independently mounted product. Assembly with contactor Model of overload relay Rated current (A) Recommended fuse type (RT is recommended) am gg Model of contactor 0.~ ~ ~0. 0.~ ~ ~..5~.~.5 NC-09 NC-09~.5~ 0 ~ 5.5~ 0 7~0 0 NR-.5 9~3 5 0.~ ~ ~0. 0.~0.3 NR-5 0.3~ ~..53.

10 3~3 30~0 37~50 ~5 55~70 3~ ~ NC-0 NC-50 NC-5 NC- NC-95 NC-5 NC-50 NR-93 ~5 00~0 5~ NC-5 NC-5 NC-5 NC-330 NC-00 NC-500 NC-30 NR-00 0~50 00~ 50~00 ~500 00~30 ~0 95~0 0~ NR-30 NR-5 3~3 ~ NC-3 NR-3 NC-09 NC- NC- NC-5 NC-3.5~.~.5.5~ ~ 5.5~ 7~0 9~3 ~ 7~ Model of overload relay Rated current (A) Recommended fuse type (RT is recommended) Model of contactor am gg NR-50

11 R Relays C US LISTED USA NRE Electronic Over-load Relay. General. Certificates: UL;. Electrical ratings: AC50/0Hz, 90V;.3 Standards: IEC/EN 097--, UL50. Type Designation N RE - / Mounting version (F: independent; blank: combined) Tripping class (B: 0; blank: 0A) Rated current class Design sequence number Electronic overload relay Company code 3. Features 3. Three-phase electronic type, tripping class0a and Energy saving up to % compared with bimetallic type. 3.3 Phase-failure protection. 3. Current setting continuously adjustable. 3.5 Two indicator lights available for indicating normal, overload time-delay, phase-failure and phase-failure time-delay status respectively. 3. Manual test mechanism. 3.7 Manual reset button. 3. A pair of N/C and N/O contacts. 3.9 Two mounting versions: independent or combined with a contactor.. Technical Data. Main Circuit: Rated insulation voltage: AC 90V; Rated frequency: 50/0Hz. Auxiliary Circuit: Rated insulation voltage: AC 00V; Rated frequency: 50/0Hz; See table below for other ratings. Utilization category AC-5 DC-3 Rated operational voltage Ue (V) Rated operational current Ie (A) Conventional heating current (A).3 Wiring Connection of main circuit is PVC insulation copper conductor or cable. See table below for details: 30.5 Current range (A) Cross section area (mm ) Length (m) Number of piece I <I <I 0 0<I 5 5<I 3 3<I

12 Current range (A) 50<I 5 5<I 5 5<I 5 5<I 50 50<I 75 75<I 5 5<I 50 50<I 75 75<I 0 0<I 00 00<I <I 30 Cross section area (mm ) Length (m) Number of piece Protection Characteristics.. Operation characteristic under three-phase balanced-load status as per the table below. Series No. I/In Operating time Test condition Ambient temperature ( ).05 <h non-tripping Cold status <h tripping Class 0A min Class 0 min Starts from hot status, right after item no. (0±5) 7.0 Class 0A Class 0 s<tp 0s s<tp 0s Cold status Under three-phase operation, if relay current reaches and maintains.05 times of the current setting, the green lamp flashes and red lamp does not light up, which indicates that the relay is not at over-load time-delay status, which equals to non-operation in hours in serial No. of the table above. A current tolerance for serial No. is -3%, and a current tolerance for No. is +3%. Cold status implies the status of the power re-energized of main circuit of relay 5 seconds after its power off... Operation characteristic under phase-failure status as per the table below. Series No. Any two phases I/In The third phase Operating time Tp Test condition Ambient temperature <h non-tripping Starts from cold status Starts from hot (0±5).5 0 <h tripping status, right after item No. Under phase failure operation, if relay current reaches and maintains.0 times of the current setting, the red lamp flashes and green lamp does not light up, which equals to non-operation in hours in serial No. of the table above. When current reaches and exceeds.5 times the current setting, the red lamp flashes and the green lamp lights up, which indicates that the relay is at time-delay release status. A current tolerance for serial No. is -3%, and a current tolerance for No. is +3%..5.

13 Relays.5 Tripping Curve Tripping class 0A Tripping class 0 t(s) t(s) I/Ie 0 I/Ie : Cold status : Hot status : Cold status : Hot status 5. Overall and Mounting Dimensions (mm) 5. For Combined Mounting D.5max.5 NRE-5 Overall and Mounting Dimension 0 CHINT NRE-5 3 Titp 0 5 Test Reset 95 NC 9 97 NO 9 77.max T T T3 max 5max.5 9max NRE-5/F Overall and Mounting Dimension L 3 L CHINT NRE Test Trip Reset 3 NC NO T T3.57.

14 90 95 NRE NC R Test 9 97 Trip NO RESET 9 NRE-0 Overall and Mounting Dimension max 0 CHINT NRE Test Titp Reset 5max 95 NC 9 97 NO 9 T T T3 55max NRE-0/F Overall and Mounting Dimension 55max 5 0max L 3 L 77 CHINT NRE Test Trip RESET 9max 95 NC 9 97 NO 9 T T T3 NRE-00 Overall and Mounting Dimension 0/3.5 0/3.5 0max 7. CHINT NRE Test Trip RESET./7. 95 NC 9 97 NO 9 T T T3 NRE-00 Overall and Mounting Dimension M

15 95 NRE-30 NC R Test 9 97 Trip NO RESET 9 Relays NRE-30 Overall and Mounting Dimension 5 /55* 7 /55* /9 5 /5 50. Applications K K K Manual reset Test Stop L L T T L3 T Overload relay M3~ 7. Accessories 7. Mounting base Description Application NRE-5 mounting bracket Incorporates with NRE-5 to form an independently mounted product NRE-0 mounting bracket Incorporates with NRE-5 to form an independently mounted product.59.

16 7. Assembly with contactors Thermal overload Relay Rated current (A) Current setting range (A) Model of recommended contactor Model of recommended fuse. 0.~. RT3- (NT00-)..~. ~ NC-09 RT3- (NT00-) RT3-0 (NT00-0) ~ RT3- (NT00-) 0 5~0 7~ NC- RT3-0 (NT00-0) RT3-5 (NT00-5) 0 0~0 NC-, NC-5 RT3-0 (NT00-0) NRE ~5 ~3 NC-5 RT3-50 (NT00-50) RT3- (NT00-) ~ RT3-0 (NT00-0) ~ RT3- (NT00-) 0 5~0 NC-3, NC-0 RT3-0 (NT00-0) 0 0~0 RT3-0 (NT00-0) NRE-0 0 0~0 RT3- (NT00-) 5 30~5 NC-50, NC-5 RT3-0 (NT00-0) NRE ~00 NC-, NC-95 RT3-00 (NT-00) NRE ~0 0~0 0~00 NC-5, NC-50 NC-5, NC-5 RT3-50 (NT-50) RT3- (NT-) RT3-00 (NT-00) ~50 5~ 75~00 30~500 NC-5, NC-5 NC-330, NC-00 NC-500, NC-30 RT3-500 (NT3-500) RT3-30 (NT3-30) RT3-0 (NT-0) RT3-000 (NT-000) NRE ~30 RT3-000 (NT-000).0.