HIGH POWER AUTOMOTIVE RELAY FEATURES 26.5 1.043 22.0 .866 CB-RELAYS * 40 A rating at 85C 185F * ISO type terminals * High shock resistance for drop test requirements (2 meters 6.6 feet) * Low temperature rise -- all current carrying material is copper. * Quick connect and PC board type 25.5 1.004 22.0 .866 26.0 1.024 25.0 .984 mm inch SPECIFICATIONS Contact (1) Standard type (12V coil voltage) Arrangement 1 Form A Nominal switching capacity 40 A 14 V DC Rating Max. switching current (at 85C 185F) Initial contact resistance, max. Contact material Mechanical (at 120 cpm) Expected life Electrical (at rated load) 40 A 14 V DC High contact capacity (1 Form A) 70 A 14 V DC (at 20C 68F) 50 A 14 V DC (at 85C 185F) 1 Form C N.O.: 40 A 14 V DC N.C.: 30 A 14 V DC N.O.: 40 A 14 V DC N.C.: 30 A 14 V DC 15m Silver alloy Min. 106 Flux-resistant type: Min. 105*1 Sealed type: Min. 5 x 104 40 A 14 V DC (2) Standard type (24V coil voltage) Arrangement Rating 1 Form A Nominal switching capacity 20 A 28V DC Max. switching current (at 85C 185F) 20 A 28 V DC 1 Form C N.O.: 20 A 28 V DC N.C.: 10 A 28 V DC N.O.: 20 A 28 V DC N.C.: 10 A 28 V DC *1 All other specifications are the same as those of standard type (12V coil voltage) (3) Heat resistant type (12V, 24V coil voltage) Type Arrangement Rating 12V coil voltage 1 Form C N.O.: 35 A 14 V DC 35 A 14V DC N.C.: 30 A 14 V DC N.O.: 35 A 14 V DC 35 A 14 V DC N.C.: 30 A 14 V DC 1 Form A Nominal switching capacity Max. switching current (at 85C 185F) 24V coil voltage 1 Form C N.O.: 20 A 28 V DC 20 A 28 V DC N.C.: 10 A 28 V DC N.O.: 20 A 28 V DC 20 A 28V DC N.C.: 10 A 28 V DC 1 Form A *1 All other specifications are the same as those of standard type (12V coil voltage) Coil Arrangement 1 Form A, 1 Form C High contact capacity Coil voltage 12V DC 24V DC 12V DC Nominal operating power 1.4W 1.8W 1.8W 379 CB Characteristics Max. operating speed (at rated load) Initial insulation resistance*2 15 cpm Min. 20 M (at 500 V DC) 500 Vrms for 1 min. 500 Vrms for 1 min. Max. 15 ms Max. 15 ms Min. 200 m/s2 {20 G} Min. 1,000 m/s2 {100 G} 10 to 500Hz, Min. 44.1m/s2 {4.5G} 10 to 2,000Hz, Min. 44.1m/s2 {4.5G} -40C to +85C -40F to +185F (Heat resistant type: -40C to +125C -40F to +257F) 5 to 85% R.H. Approx. 33 g 1.16 oz Between open contacts Between contacts and coil Initial breakdown voltage*3 Operate time*4 (at nominal voltage) Release time (without diode)*4 (at nominal voltage) Functional*5 Destructive*6 Functional*7 Functional*8 Shock resistance Vibration resistance Conditions for operation, transport and storage*9 (Not freezing and condensing at low temperature) Ambient temp. Humidity Unit weight Remarks *6 Half-wave pulse of sine wave: 11ms; detection time: 10s *7 Half-wave pulse of sine wave: 6ms *8 Detection time: 10s *9 Refer to 5. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 61) * Specifications will vary with foreign standards certification ratings. *1 All other specifications are the same as those of standard type (12V coil voltage) *2 Measurement at same location as "Initial breakdown voltage" section *3 Detection current: 10 mA *4 Wave is standard shock voltage of 1.2 x 50s according to JEC-212-1981 *5 Excluding contact bounce time TYPICAL APPLICATIONS * Automotive system * ABS, Head Lamp, Air conditioner * Tracter, Combine ORDERING INFORMATION CB 1 F T R M 12 V Contact arrangement Protective construction Heat resistant of types Type classification Mounting classification Coil voltage (DC) 1a: 1 Form A 1: 1 Form C 1aH: High contact capacity*1 (1 Form A) Nil: Sealed type F: Flux-resistant type Nil: Standard type T: Heat resistant type*2 Nil: Standard type D: with diode inside R: with resistor inside Nil: Quick connect type P: PC board type M:Bracket type 12, 24 V Note: Bulk pakage: 50 pcs.; Case: 200 pcs. *1 High contact capacity type is available only for "Quick connect" and 12 V. (See "1. Standard type in TYPES" Page 380) *2 Heat resistant type with high contact capacity is not available. (See "2. Heat resistant type in TYPES" Page 381) TYPES 1. Standard type Contact arrangement Mounting classification PC board type 1 Form A Quick connect type Bracket type PC board type 1 Form C Quick connect type Bracket type High contact capacity (1 Form A) 380 Quick connect type Coil voltage, V DC 12V 24V 12V 24V 12V 24V 12V 24V 12V 24V 12V 24V 12V Part No. Sealed type CB1a-P-12V CB1a-P-24V CB1a-12V CB1a-24V CB1a-M-12V CB1a-M-24V CB1-P-12V CB1-P-24V CB1-12V CB1-24V CB1-M-12V CB1-M-24V CB1aH-12V Flux-resistant type CB1aF-P-12V CB1aF-P-24V CB1aF-12V CB1aF-24V CB1aF-M-12V CB1aF-M-24V CB1F-P-12V CB1F-P-24V CB1F-12V CB1F-24V CB1F-M-12V CB1F-M-24V CB1aHF-12V CB 2. Heat resistant type Contact arrangement Mounting classification PC board type 1 Form A Quick connect type Bracket type PC board type 1 Form C Quick connect type Bracket type Coil voltage, V DC 12V 24V 12V 24V 12V 24V 12V 24V 12V 24V 12V 24V Part No. Sealed type CB1a-T-P-12V CB1a-T-P-24V CB1a-T-12V CB1a-T-24V CB1a-T-M-12V CB1a-T-M-24V CB1-T-P-12V CB1-T-P-24V CB1-T-12V CB1-T-24V CB1-T-M-12V CB1-T-M-24V Flux-resistant type CB1aF-T-P-12V CB1aF-T-P-24V CB1aF-T-12V CB1aF-T-24V CB1aF-T-M-12V CB1aF-T-M-24V CB1F-T-P-12V CB1F-T-P-24V CB1F-T-12V CB1F-T-24V CB1F-T-M-12V CB1F-T-M-24V COIL DATA (at 20C 68F) Nominal voltage, V DC Pick-up voltage, V DC (max.) Drop-out voltage, V DC (mim.) Nominal current, mA (10%) Coil resistance, (10%) 1 Form A 1 Form C 12 24 3 to 7 6 to 14 1.2 to 4.2 2.4 to 8.4 117 75 High contact capacity (1 Form A) 12 3 to 7 1.2 to 4.2 150 Contact arrangement 103 320 Nominal operating power, W 1.4 1.8 Usable voltage range, V DC 10 to 16 20 to 32 80 1.8 10 to 16 mm inch DIMENSIONS 1. PC board type Schematic (Bottom view) 1a 25.0 .984 4.5 .177 1c 86 85 1.0 .039 2.15 6.3 .085 .248 26.0 1.024 22.0 .866 86 87 Including diode type, including load type also available. Including diode (1 Form A) Including load (1 Form C) 86 30 Sealed by epoxy resin 0.8 .031 86 30 8.4 .331 16.8 .661 87a* 87 85 8.0 .315 8.4 .331 17.9 .705 87 85 86 Venting hole 87a 2.6 .102 85 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 87 87a 87 85 General tolerance 0.1 .004 0.2 .008 0.3 .012 2. Quick connect type Schematic (Bottom view) 1a 25.0 .984 4.0 11.0.157 .433 85 86 87 85 87a 87 Including diode type, including load type also available. 5-6.3 5-.248 26.0 1.024 1.7 dia. .067 dia. 22.0 .866 Sealed by epoxy resin Venting hole 0.8 .031 1c 86 86 30 85 8.4 .331 87a* 87 8.0 .315 8.4 .331 17.9 .705 16.8 .661 2.6 .102 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: General tolerance 0.1 .004 0.2 .008 0.3 .012 381 CB 3. Bracket type mm inch 4.00.1 .157.004 1.7 .067 16.0 .630 5.40.1 dia. .213.004 Schematic (Bottom view) 1a 6.0 16.0 .236 .630 1c 86 85 25.0 .984 86 87 87a 85 87 Including diode type, including load type also available. 4.0 11.0.157 .433 22.0 .866 5-6.3 5-.248 26.0 1.024 1.7 dia. .067 dia. Sealed by epoxy resin 0.8 .031 30 86 85 87a* 17.9 .705 2.6 .102 16.8 .661 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 8.4 .331 87 8.00.1 .315.004 8.4 .331 General tolerance 0.1 .004 0.2 .008 0.3 .012 4. High contact capacity type Schematic (Bottom view) 86 25.5 1.004 30 87 85 4.0 .157 11.0 .433 15.0 .591 5.8 .228 2-6.3 0.08 2-.248 .003 26.5 1.043 4-1.7 dia. hole 4-.067 dia. hole Sealed by epoxy resin 0.8 .031 22.0 .866 2-9.50.08 2-.374.003 8.4 .331 86 1.2 .047 16.8 .661 30 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 87 85 8.4 .331 17.9 .705 2.6 .102 General tolerance 0.1 .004 0.2 .008 0.3 .012 REFERENCE DATA 1. Coil temperature rise 2. Electrical life test (Motor load) Tested sample: CB1aF-P-12V, 3pcs. Ambient temperature: 85C 185F Contact carrying current: 40A Tested sample: CB1a-12V, 3pcs. Load: 18A steady, Inrush 82A Operating frequency: ON 2s, OFF 6s 180 120 90 60 Contact welding: 0 times Miscontact: 0 times 6 5 Pick-up voltage -x 4 3 Drop-out voltage Max. -x Min. 2 Contact resistance, m 150 Pick-up and drop-out voltage, V Temperature rise, C 5 7 40A 4 Max. 3 x 2 Min. 1 30 1 0 12 14 16 Coil applied voltage, V 0 0 0 5 No. of operations, 10 x104 0 5 10 No. of operations, x104 For Cautions for use, see Relay Technical Information (Page 48 to 76). 382 9/1/2000 All Rights Reserved, (c) Copyright Matsushita Electric Works, Ltd. Go To Online Catalog